Repository: xelabs/go-mydumper
Branch: master
Commit: e6a0b54b5792
Files: 22
Total size: 98.4 KB
Directory structure:
gitextract_qywr0j_b/
├── .github/
│ └── workflows/
│ ├── mydumper-build.yml
│ ├── mydumper-coverage.yml
│ └── mydumper-test.yml
├── .gitignore
├── .travis.yml
├── LICENSE
├── Makefile
├── README.md
├── cmd/
│ ├── mydumper/
│ │ └── main.go
│ └── myloader/
│ └── main.go
├── common/
│ ├── common.go
│ ├── common_test.go
│ ├── dumper.go
│ ├── dumper_test.go
│ ├── loader.go
│ ├── loader_test.go
│ ├── pool.go
│ └── pool_test.go
├── config/
│ ├── config.go
│ └── mydumper.ini.sample
├── go.mod
└── go.sum
================================================
FILE CONTENTS
================================================
================================================
FILE: .github/workflows/mydumper-build.yml
================================================
name: mydumper Build
on: [push, pull_request]
jobs:
build:
name: Build
runs-on: ubuntu-latest
steps:
- name: Set up Go 1.15
uses: actions/setup-go@v2
with:
go-version: '^1.15.6'
id: go
- name: Check out code
uses: actions/checkout@v2
- name: Build
run: |
export PATH=$PATH:$(go env GOPATH)/bin
make build
================================================
FILE: .github/workflows/mydumper-coverage.yml
================================================
name: mydumper Coverage
on: [push, pull_request]
jobs:
coverage:
name: Coverage
runs-on: ubuntu-latest
steps:
- name: Set up Go 1.15
uses: actions/setup-go@v2
with:
go-version: '^1.15.6'
id: go
- name: Check out code
uses: actions/checkout@v2
- name: Coverage
run: |
export PATH=$PATH:$(go env GOPATH)/bin
make coverage
bash <(curl -s https://codecov.io/bash) -f "!mock.go" -t 139cd284-7f04-4e98-9e4b-4c697f007b59
================================================
FILE: .github/workflows/mydumper-test.yml
================================================
name: mydumper Test
on: [push, pull_request]
jobs:
test:
name: Test
runs-on: ubuntu-latest
steps:
- name: Set up Go 1.15
uses: actions/setup-go@v2
with:
go-version: '^1.15.6'
id: go
- name: Check out code
uses: actions/checkout@v2
- name: Test
run: |
export PATH=$PATH:$(go env GOPATH)/bin
make test
================================================
FILE: .gitignore
================================================
bin/*
pkg/*
src/github.com/
/.idea
/myloader
/mydumper
*.sql
*.ini
/dumper-sql
/coverage.txt
tags
coverage.out
================================================
FILE: .travis.yml
================================================
language: go
dist: focal
sudo: required
go:
- 1.15.x
before_install:
- go get github.com/stretchr/testify/assert
script:
- make
- make coverage
after_success:
# send coverage reports to Codecov
- bash <(curl -s https://codecov.io/bash) -f "!mock.go"
================================================
FILE: LICENSE
================================================
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ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{one line to give the program's name and a brief idea of what it does.}
Copyright (C) {year} {name of author}
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
{project} Copyright (C) {year} {fullname}
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
================================================
FILE: Makefile
================================================
export PATH := $(GOPATH)/bin:$(PATH)
all: build test
build:
@echo "--> Building..."
go build -v -o bin/mydumper ./cmd/mydumper
go build -v -o bin/myloader ./cmd/myloader
@chmod 755 bin/*
clean:
@echo "--> Cleaning..."
@go clean
@rm -f bin/*
fmt:
go fmt ./...
go vet ./...
test:
@echo "--> Testing..."
@$(MAKE) testcommon
testcommon:
go test -race -v ./common
# code coverage
COVPKGS = ./common
coverage:
echo 'mode: atomic' > coverage.txt
go test -covermode=atomic -coverprofile=coverage.out $(COVPKGS)
go tool cover -html=coverage.out
.PHONY: all get build clean fmt test coverage
================================================
FILE: README.md
================================================
[](https://github.com/xelabs/go-mydumper/actions?query=workflow%3A%22mydumper+Build%22+event%3Apush)
[](https://github.com/xelabs/go-mydumper/actions?query=workflow%3A%22mydumper+Test%22+event%3Apush)
[](https://github.com/xelabs/go-mydumper/actions?query=workflow%3A%22mydumper+Coverage%22+event%3Apush)
[](https://goreportcard.com/report/github.com/xelabs/go-mydumper) [](https://codecov.io/gh/xelabs/go-mydumper/branch/master)
# go-mydumper
***go-mydumper*** is a multi-threaded MySQL backup and restore tool, and it is compatible with [maxbube/mydumper](https://github.com/maxbube/mydumper) in the layout.
## Build
```
$git clone https://github.com/xelabs/go-mydumper
$cd go-mydumper
$make build
$./bin/mydumper -h
$./bin/myloader -h
```
## Test
```
$make test
```
## Usage
### mydumper
```
./bin/mydumper -h
Usage: ./bin/mydumper -c conf/mydumper.ini.sample
-c string
config file
Examples:
$./bin/mydumper -c conf/mydumper.ini.sample
2017/10/25 13:12:52.933391 dumper.go:35: [INFO] dumping.database[sbtest].schema...
2017/10/25 13:12:52.937743 dumper.go:45: [INFO] dumping.table[sbtest.benchyou0].schema...
2017/10/25 13:12:52.937791 dumper.go:168: [INFO] dumping.table[sbtest.benchyou0].datas.thread[1]...
2017/10/25 13:12:52.939008 dumper.go:45: [INFO] dumping.table[sbtest.benchyou1].schema...
2017/10/25 13:12:52.939055 dumper.go:168: [INFO] dumping.table[sbtest.benchyou1].datas.thread[2]...
2017/10/25 13:12:55.611905 dumper.go:105: [INFO] dumping.table[sbtest.benchyou0].rows[633987].bytes[128MB].part[1].thread[1]
2017/10/25 13:12:55.765127 dumper.go:105: [INFO] dumping.table[sbtest.benchyou1].rows[633987].bytes[128MB].part[1].thread[2]
2017/10/25 13:12:58.146093 dumper.go:105: [INFO] dumping.table[sbtest.benchyou0].rows[1266050].bytes[256MB].part[2].thread[1]
2017/10/25 13:12:58.253219 dumper.go:105: [INFO] dumping.table[sbtest.benchyou1].rows[1266054].bytes[256MB].part[2].thread[2]
...
[stripped]
...
2017/10/25 13:13:02.939278 dumper.go:182: [INFO] dumping.allbytes[1024MB].allrows[5054337].time[10.01sec].rates[102.34MB/sec]...
2017/10/25 13:13:35.496439 dumper.go:105: [INFO] dumping.table[sbtest.benchyou1].rows[11345659].bytes[2304MB].part[18].thread[2]
2017/10/25 13:13:37.627178 dumper.go:105: [INFO] dumping.table[sbtest.benchyou0].rows[11974624].bytes[2432MB].part[19].thread[1]
2017/10/25 13:13:37.753966 dumper.go:105: [INFO] dumping.table[sbtest.benchyou1].rows[11974630].bytes[2432MB].part[19].thread[2]
2017/10/25 13:13:39.453430 dumper.go:122: [INFO] dumping.table[sbtest.benchyou0].done.allrows[12486842].allbytes[2536MB].thread[1]...
2017/10/25 13:13:39.453462 dumper.go:170: [INFO] dumping.table[sbtest.benchyou0].datas.thread[1].done...
2017/10/25 13:13:39.622390 dumper.go:122: [INFO] dumping.table[sbtest.benchyou1].done.allrows[12484135].allbytes[2535MB].thread[2]...
2017/10/25 13:13:39.622423 dumper.go:170: [INFO] dumping.table[sbtest.benchyou1].datas.thread[2].done...
2017/10/25 13:13:39.622454 dumper.go:188: [INFO] dumping.all.done.cost[46.69sec].allrows[24970977].allbytes[5318557708].rate[108.63MB/s]
```
The dump files:
```
$ ls sbtest.sql/
metadata sbtest.benchyou0.00009.sql sbtest.benchyou0.00018.sql sbtest.benchyou1.00006.sql sbtest.benchyou1.00015.sql
sbtest.benchyou0.00001.sql sbtest.benchyou0.00010.sql sbtest.benchyou0.00019.sql sbtest.benchyou1.00007.sql sbtest.benchyou1.00016.sql
sbtest.benchyou0.00002.sql sbtest.benchyou0.00011.sql sbtest.benchyou0.00020.sql sbtest.benchyou1.00008.sql sbtest.benchyou1.00017.sql
sbtest.benchyou0.00003.sql sbtest.benchyou0.00012.sql sbtest.benchyou0-schema.sql sbtest.benchyou1.00009.sql sbtest.benchyou1.00018.sql
sbtest.benchyou0.00004.sql sbtest.benchyou0.00013.sql sbtest.benchyou1.00001.sql sbtest.benchyou1.00010.sql sbtest.benchyou1.00019.sql
sbtest.benchyou0.00005.sql sbtest.benchyou0.00014.sql sbtest.benchyou1.00002.sql sbtest.benchyou1.00011.sql sbtest.benchyou1.00020.sql
sbtest.benchyou0.00006.sql sbtest.benchyou0.00015.sql sbtest.benchyou1.00003.sql sbtest.benchyou1.00012.sql sbtest.benchyou1-schema.sql
sbtest.benchyou0.00007.sql sbtest.benchyou0.00016.sql sbtest.benchyou1.00004.sql sbtest.benchyou1.00013.sql sbtest-schema-create.sql
sbtest.benchyou0.00008.sql sbtest.benchyou0.00017.sql sbtest.benchyou1.00005.sql sbtest.benchyou1.00014.sql
```
### myloader
```
$ ./bin/myloader --help
Usage: ./bin/myloader -h [HOST] -P [PORT] -u [USER] -p [PASSWORD] -d [DIR]
-P int
TCP/IP port to connect to (default 3306)
-d string
Directory of the dump to import
-h string
The host to connect to
-p string
User password
-t int
Number of threads to use (default 16)
-u string
Username with privileges to run the loader
Examples:
$./bin/myloader -h 192.168.0.2 -P 3306 -u mock -p mock -d sbtest.sql
2017/10/25 13:04:17.396002 loader.go:75: [INFO] restoring.database[sbtest]
2017/10/25 13:04:17.458076 loader.go:99: [INFO] restoring.schema[sbtest.benchyou0]
2017/10/25 13:04:17.516236 loader.go:99: [INFO] restoring.schema[sbtest.benchyou1]
2017/10/25 13:04:17.516389 loader.go:115: [INFO] restoring.tables[benchyou0].parts[00015].thread[1]
2017/10/25 13:04:17.516456 loader.go:115: [INFO] restoring.tables[benchyou0].parts[00005].thread[2]
...
[stripped]
...
2017/10/25 13:05:27.783560 loader.go:131: [INFO] restoring.tables[benchyou1].parts[00005].thread[9].done...
2017/10/25 13:05:36.133758 loader.go:181: [INFO] restoring.allbytes[4087MB].time[78.62sec].rates[51.99MB/sec]...
2017/10/25 13:05:44.759183 loader.go:131: [INFO] restoring.tables[benchyou0].parts[00001].thread[3].done...
2017/10/25 13:05:46.133728 loader.go:181: [INFO] restoring.allbytes[4216MB].time[88.62sec].rates[47.58MB/sec]...
2017/10/25 13:05:46.567156 loader.go:131: [INFO] restoring.tables[benchyou1].parts[00016].thread[6].done...
2017/10/25 13:05:50.612200 loader.go:131: [INFO] restoring.tables[benchyou0].parts[00008].thread[10].done...
2017/10/25 13:05:51.131155 loader.go:131: [INFO] restoring.tables[benchyou0].parts[00014].thread[2].done...
2017/10/25 13:05:51.185629 loader.go:131: [INFO] restoring.tables[benchyou0].parts[00011].thread[1].done...
2017/10/25 13:05:51.836354 loader.go:131: [INFO] restoring.tables[benchyou1].parts[00004].thread[0].done...
2017/10/25 13:05:52.286931 loader.go:131: [INFO] restoring.tables[benchyou1].parts[00006].thread[11].done...
2017/10/25 13:05:52.602444 loader.go:131: [INFO] restoring.tables[benchyou0].parts[00019].thread[8].done...
2017/10/25 13:05:52.602573 loader.go:187: [INFO] restoring.all.done.cost[95.09sec].allbytes[5120.00MB].rate[53.85MB/s]
```
## License
go-mydumper is released under the GPLv3. See LICENSE
================================================
FILE: cmd/mydumper/main.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package main
import (
"flag"
"fmt"
"os"
"github.com/xelabs/go-mydumper/common"
"github.com/xelabs/go-mydumper/config"
"github.com/xelabs/go-mysqlstack/xlog"
)
var (
flagConfig string
log = xlog.NewStdLog(xlog.Level(xlog.INFO))
)
func initFlags() {
flag.StringVar(&flagConfig, "c", "", "config file")
}
func usage() {
fmt.Println("Usage: " + os.Args[0] + " -c conf/mydumper.ini.sample")
flag.PrintDefaults()
}
func main() {
initFlags()
flag.Usage = func() { usage() }
flag.Parse()
if flagConfig == "" {
usage()
os.Exit(0)
}
args, err := config.ParseDumperConfig(flagConfig)
common.AssertNil(err)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
common.AssertNil(x)
}
common.Dumper(log, args)
}
================================================
FILE: cmd/myloader/main.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package main
import (
"flag"
"fmt"
"os"
"github.com/xelabs/go-mydumper/common"
"github.com/xelabs/go-mydumper/config"
"github.com/xelabs/go-mysqlstack/xlog"
)
var (
flagOverwriteTables bool
flagPort, flagThreads int
flagUser, flagPasswd, flagHost, flagDir string
log = xlog.NewStdLog(xlog.Level(xlog.INFO))
)
func initFlags() {
flag.StringVar(&flagUser, "u", "", "Username with privileges to run the loader")
flag.StringVar(&flagPasswd, "p", "", "User password")
flag.StringVar(&flagHost, "h", "", "The host to connect to")
flag.IntVar(&flagPort, "P", 3306, "TCP/IP port to connect to")
flag.StringVar(&flagDir, "d", "", "Directory of the dump to import")
flag.IntVar(&flagThreads, "t", 16, "Number of threads to use")
flag.BoolVar(&flagOverwriteTables, "o", false, "Drop tables if they already exist")
}
func usage() {
fmt.Println("Usage: " + os.Args[0] + " -h [HOST] -P [PORT] -u [USER] -p [PASSWORD] -d [DIR] [-o]")
flag.PrintDefaults()
}
func main() {
initFlags()
flag.Usage = func() { usage() }
flag.Parse()
if flagHost == "" || flagUser == "" || flagDir == "" {
usage()
os.Exit(0)
}
args := &config.Config{
User: flagUser,
Password: flagPasswd,
Address: fmt.Sprintf("%s:%d", flagHost, flagPort),
Outdir: flagDir,
Threads: flagThreads,
IntervalMs: 10 * 1000,
OverwriteTables: flagOverwriteTables,
}
common.Loader(log, args)
}
================================================
FILE: common/common.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"io"
"io/ioutil"
"os"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/common"
)
// WriteFile used to write datas to file.
func WriteFile(file string, data string) error {
flag := os.O_RDWR | os.O_TRUNC
if _, err := os.Stat(file); os.IsNotExist(err) {
flag |= os.O_CREATE
}
f, err := os.OpenFile(file, flag, 0o644)
if err != nil {
return err
}
defer f.Close()
n, err := f.Write(common.StringToBytes(data))
if err != nil {
return err
}
if n != len(data) {
return io.ErrShortWrite
}
return nil
}
// ReadFile used to read datas from file.
func ReadFile(file string) ([]byte, error) {
return ioutil.ReadFile(file)
}
// AssertNil used to assert the error.
func AssertNil(err error) {
if err != nil {
panic(err)
}
}
// EscapeBytes used to escape the literal byte.
func EscapeBytes(bytes []byte) []byte {
buffer := common.NewBuffer(128)
for _, b := range bytes {
// See https://dev.mysql.com/doc/refman/5.7/en/string-literals.html
// for more information on how to escape string literals in MySQL.
switch b {
case 0:
buffer.WriteString(`\0`)
case '\'':
buffer.WriteString(`\'`)
case '"':
buffer.WriteString(`\"`)
case '\b':
buffer.WriteString(`\b`)
case '\n':
buffer.WriteString(`\n`)
case '\r':
buffer.WriteString(`\r`)
case '\t':
buffer.WriteString(`\t`)
case 0x1A:
buffer.WriteString(`\Z`)
case '\\':
buffer.WriteString(`\\`)
default:
buffer.WriteU8(b)
}
}
return buffer.Datas()
}
================================================
FILE: common/common_test.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestWriteReadFile(t *testing.T) {
file := "/tmp/xx.txt"
defer os.Remove(file)
{
err := WriteFile(file, "fake")
assert.Nil(t, err)
}
{
got, err := ReadFile(file)
assert.Nil(t, err)
want := []byte("fake")
assert.Equal(t, want, got)
}
{
err := WriteFile("/xxu01/xx.txt", "fake")
assert.NotNil(t, err)
}
}
func TestEscapeBytes(t *testing.T) {
tests := []struct {
v []byte
exp []byte
}{
{[]byte("simple"), []byte("simple")},
{[]byte(`simplers's "world"`), []byte(`simplers\'s \"world\"`)},
{[]byte("\x00'\"\b\n\r"), []byte(`\0\'\"\b\n\r`)},
{[]byte("\t\x1A\\"), []byte(`\t\Z\\`)},
}
for _, tt := range tests {
got := EscapeBytes(tt.v)
want := tt.exp
assert.Equal(t, want, got)
}
}
================================================
FILE: common/dumper.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"fmt"
"regexp"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/xelabs/go-mydumper/config"
querypb "github.com/xelabs/go-mysqlstack/sqlparser/depends/query"
"github.com/xelabs/go-mysqlstack/xlog"
)
func writeMetaData(args *config.Config) {
file := fmt.Sprintf("%s/metadata", args.Outdir)
WriteFile(file, "")
}
func dumpDatabaseSchema(log *xlog.Log, conn *Connection, args *config.Config, database string) {
err := conn.Execute(fmt.Sprintf("USE `%s`", database))
AssertNil(err)
schema := fmt.Sprintf("CREATE DATABASE IF NOT EXISTS `%s`;", database)
file := fmt.Sprintf("%s/%s-schema-create.sql", args.Outdir, database)
WriteFile(file, schema)
log.Info("dumping.database[%s].schema...", database)
}
func dumpTableSchema(log *xlog.Log, conn *Connection, args *config.Config, database string, table string) {
qr, err := conn.Fetch(fmt.Sprintf("SHOW CREATE TABLE `%s`.`%s`", database, table))
AssertNil(err)
schema := qr.Rows[0][1].String() + ";\n"
file := fmt.Sprintf("%s/%s.%s-schema.sql", args.Outdir, database, table)
WriteFile(file, schema)
log.Info("dumping.table[%s.%s].schema...", database, table)
}
func dumpTable(log *xlog.Log, conn *Connection, args *config.Config, database string, table string) {
var allBytes uint64
var allRows uint64
var where string
var selfields []string
fields := make([]string, 0, 16)
{
cursor, err := conn.StreamFetch(fmt.Sprintf("SELECT * FROM `%s`.`%s` LIMIT 1", database, table))
AssertNil(err)
flds := cursor.Fields()
for _, fld := range flds {
log.Debug("dump -- %#v, %s, %s", args.Filters, table, fld.Name)
if _, ok := args.Filters[table][fld.Name]; ok {
continue
}
fields = append(fields, fmt.Sprintf("`%s`", fld.Name))
replacement, ok := args.Selects[table][fld.Name]
if ok {
selfields = append(selfields, fmt.Sprintf("%s AS `%s`", replacement, fld.Name))
} else {
selfields = append(selfields, fmt.Sprintf("`%s`", fld.Name))
}
}
err = cursor.Close()
AssertNil(err)
}
if v, ok := args.Wheres[table]; ok {
where = fmt.Sprintf(" WHERE %v", v)
}
cursor, err := conn.StreamFetch(fmt.Sprintf("SELECT %s FROM `%s`.`%s` %s", strings.Join(selfields, ", "), database, table, where))
AssertNil(err)
fileNo := 1
stmtsize := 0
chunkbytes := 0
rows := make([]string, 0, 256)
inserts := make([]string, 0, 256)
for cursor.Next() {
row, err := cursor.RowValues()
AssertNil(err)
values := make([]string, 0, 16)
for _, v := range row {
if v.Raw() == nil {
values = append(values, "NULL")
} else {
str := v.String()
switch {
case v.IsSigned(), v.IsUnsigned(), v.IsFloat(), v.IsIntegral(), v.Type() == querypb.Type_DECIMAL:
values = append(values, str)
default:
values = append(values, fmt.Sprintf("\"%s\"", EscapeBytes(v.Raw())))
}
}
}
r := "(" + strings.Join(values, ",") + ")"
rows = append(rows, r)
allRows++
stmtsize += len(r)
chunkbytes += len(r)
allBytes += uint64(len(r))
atomic.AddUint64(&args.Allbytes, uint64(len(r)))
atomic.AddUint64(&args.Allrows, 1)
if stmtsize >= args.StmtSize {
insertone := fmt.Sprintf("INSERT INTO `%s`(%s) VALUES\n%s", table, strings.Join(fields, ","), strings.Join(rows, ",\n"))
inserts = append(inserts, insertone)
rows = rows[:0]
stmtsize = 0
}
if (chunkbytes / 1024 / 1024) >= args.ChunksizeInMB {
query := strings.Join(inserts, ";\n") + ";\n"
file := fmt.Sprintf("%s/%s.%s.%05d.sql", args.Outdir, database, table, fileNo)
WriteFile(file, query)
log.Info("dumping.table[%s.%s].rows[%v].bytes[%vMB].part[%v].thread[%d]", database, table, allRows, (allBytes / 1024 / 1024), fileNo, conn.ID)
inserts = inserts[:0]
chunkbytes = 0
fileNo++
}
}
if chunkbytes > 0 {
if len(rows) > 0 {
insertone := fmt.Sprintf("INSERT INTO `%s`(%s) VALUES\n%s", table, strings.Join(fields, ","), strings.Join(rows, ",\n"))
inserts = append(inserts, insertone)
}
query := strings.Join(inserts, ";\n") + ";\n"
file := fmt.Sprintf("%s/%s.%s.%05d.sql", args.Outdir, database, table, fileNo)
WriteFile(file, query)
}
err = cursor.Close()
AssertNil(err)
log.Info("dumping.table[%s.%s].done.allrows[%v].allbytes[%vMB].thread[%d]...", database, table, allRows, (allBytes / 1024 / 1024), conn.ID)
}
func allTables(log *xlog.Log, conn *Connection, database string) []string {
qr, err := conn.Fetch(fmt.Sprintf("SHOW TABLES FROM `%s`", database))
AssertNil(err)
tables := make([]string, 0, 128)
for _, t := range qr.Rows {
tables = append(tables, t[0].String())
}
return tables
}
func allDatabases(log *xlog.Log, conn *Connection) []string {
qr, err := conn.Fetch("SHOW DATABASES")
AssertNil(err)
databases := make([]string, 0, 128)
for _, t := range qr.Rows {
databases = append(databases, t[0].String())
}
return databases
}
func filterDatabases(log *xlog.Log, conn *Connection, filter *regexp.Regexp, invert bool) []string {
qr, err := conn.Fetch("SHOW DATABASES")
AssertNil(err)
databases := make([]string, 0, 128)
for _, t := range qr.Rows {
if (!invert && filter.MatchString(t[0].String())) || (invert && !filter.MatchString(t[0].String())) {
databases = append(databases, t[0].String())
}
}
return databases
}
// Dumper used to start the dumper worker.
func Dumper(log *xlog.Log, args *config.Config) {
pool, err := NewPool(log, args.Threads, args.Address, args.User, args.Password, args.SessionVars)
AssertNil(err)
defer pool.Close()
// Meta data.
writeMetaData(args)
// database.
var wg sync.WaitGroup
conn := pool.Get()
var databases []string
t := time.Now()
if args.DatabaseRegexp != "" {
r := regexp.MustCompile(args.DatabaseRegexp)
databases = filterDatabases(log, conn, r, args.DatabaseInvertRegexp)
} else {
if args.Database != "" {
databases = strings.Split(args.Database, ",")
} else {
databases = allDatabases(log, conn)
}
}
for _, database := range databases {
dumpDatabaseSchema(log, conn, args, database)
}
// tables.
tables := make([][]string, len(databases))
for i, database := range databases {
if args.Table != "" {
tables[i] = strings.Split(args.Table, ",")
} else {
tables[i] = allTables(log, conn, database)
}
}
pool.Put(conn)
for i, database := range databases {
for _, table := range tables[i] {
conn := pool.Get()
dumpTableSchema(log, conn, args, database, table)
wg.Add(1)
go func(conn *Connection, database string, table string) {
defer func() {
wg.Done()
pool.Put(conn)
}()
log.Info("dumping.table[%s.%s].datas.thread[%d]...", database, table, conn.ID)
dumpTable(log, conn, args, database, table)
log.Info("dumping.table[%s.%s].datas.thread[%d].done...", database, table, conn.ID)
}(conn, database, table)
}
}
tick := time.NewTicker(time.Millisecond * time.Duration(args.IntervalMs))
defer tick.Stop()
go func() {
for range tick.C {
diff := time.Since(t).Seconds()
allbytesMB := float64(atomic.LoadUint64(&args.Allbytes) / 1024 / 1024)
allrows := atomic.LoadUint64(&args.Allrows)
rates := allbytesMB / diff
log.Info("dumping.allbytes[%vMB].allrows[%v].time[%.2fsec].rates[%.2fMB/sec]...", allbytesMB, allrows, diff, rates)
}
}()
wg.Wait()
elapsed := time.Since(t).Seconds()
log.Info("dumping.all.done.cost[%.2fsec].allrows[%v].allbytes[%v].rate[%.2fMB/s]", elapsed, args.Allrows, args.Allbytes, (float64(args.Allbytes/1024/1024) / elapsed))
}
================================================
FILE: common/dumper_test.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"io/ioutil"
"os"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/xelabs/go-mydumper/config"
"github.com/xelabs/go-mysqlstack/driver"
querypb "github.com/xelabs/go-mysqlstack/sqlparser/depends/query"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/sqltypes"
"github.com/xelabs/go-mysqlstack/xlog"
)
func TestDumper(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult.Rows = append(selectResult.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .*", selectResult)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
Database: "test",
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat, err := ioutil.ReadFile(args.Outdir + "/test.t1-05-11.00001.sql")
assert.Nil(t, err)
want := strings.Contains(string(dat), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want)
}
func TestDumperAll(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult1 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult1.Rows = append(selectResult1.Rows, row)
}
selectResult2 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("1337")),
}
selectResult2.Rows = append(selectResult2.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
databasesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Databases_in_database",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test2")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("show databases", databasesResult)
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .* from `test1`.*", selectResult1)
fakedbs.AddQueryPattern("select .* from `test2`.*", selectResult2)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat_test1, err_test1 := ioutil.ReadFile(args.Outdir + "/test1.t1-05-11.00001.sql")
assert.Nil(t, err_test1)
want_test1 := strings.Contains(string(dat_test1), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want_test1)
dat_test2, err_test2 := ioutil.ReadFile(args.Outdir + "/test2.t1-05-11.00001.sql")
assert.Nil(t, err_test2)
want_test2 := strings.Contains(string(dat_test2), `(1337)`)
assert.True(t, want_test2)
}
func TestDumperMultiple(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult1 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult1.Rows = append(selectResult1.Rows, row)
}
selectResult2 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("1337")),
}
selectResult2.Rows = append(selectResult2.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
databasesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Databases_in_database",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test2")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("show databases", databasesResult)
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .* from `test1`.*", selectResult1)
fakedbs.AddQueryPattern("select .* from `test2`.*", selectResult2)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
Database: "test1,test2",
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat_test1, err_test1 := ioutil.ReadFile(args.Outdir + "/test1.t1-05-11.00001.sql")
assert.Nil(t, err_test1)
want_test1 := strings.Contains(string(dat_test1), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want_test1)
dat_test2, err_test2 := ioutil.ReadFile(args.Outdir + "/test2.t1-05-11.00001.sql")
assert.Nil(t, err_test2)
want_test2 := strings.Contains(string(dat_test2), `(1337)`)
assert.True(t, want_test2)
}
func TestDumperSimpleRegexp(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult1 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult1.Rows = append(selectResult1.Rows, row)
}
selectResult2 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("1337")),
}
selectResult2.Rows = append(selectResult2.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
databasesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Databases_in_database",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test2")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test3")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test4")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test5")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("show databases", databasesResult)
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .* from `test1`.*", selectResult1)
fakedbs.AddQueryPattern("select .* from `test2`.*", selectResult2)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
DatabaseRegexp: "(test1|test2)",
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat_test1, err_test1 := ioutil.ReadFile(args.Outdir + "/test1.t1-05-11.00001.sql")
assert.Nil(t, err_test1)
want_test1 := strings.Contains(string(dat_test1), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want_test1)
dat_test2, err_test2 := ioutil.ReadFile(args.Outdir + "/test2.t1-05-11.00001.sql")
assert.Nil(t, err_test2)
want_test2 := strings.Contains(string(dat_test2), `(1337)`)
assert.True(t, want_test2)
}
func TestDumperComplexRegexp(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult1 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult1.Rows = append(selectResult1.Rows, row)
}
selectResult2 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("1337")),
}
selectResult2.Rows = append(selectResult2.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
databasesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Databases_in_database",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test2")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("foo1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("bar2")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test5")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("show databases", databasesResult)
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .* from `test1`.*", selectResult1)
fakedbs.AddQueryPattern("select .* from `test2`.*", selectResult2)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
DatabaseRegexp: "^[ets]+?[0-2]$",
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat_test1, err_test1 := ioutil.ReadFile(args.Outdir + "/test1.t1-05-11.00001.sql")
assert.Nil(t, err_test1)
want_test1 := strings.Contains(string(dat_test1), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want_test1)
dat_test2, err_test2 := ioutil.ReadFile(args.Outdir + "/test2.t1-05-11.00001.sql")
assert.Nil(t, err_test2)
want_test2 := strings.Contains(string(dat_test2), `(1337)`)
assert.True(t, want_test2)
}
func TestDumperInvertMatch(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
selectResult1 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
{
Name: "name",
Type: querypb.Type_VARCHAR,
},
{
Name: "namei1",
Type: querypb.Type_VARCHAR,
},
{
Name: "null",
Type: querypb.Type_NULL_TYPE,
},
{
Name: "decimal",
Type: querypb.Type_DECIMAL,
},
{
Name: "datetime",
Type: querypb.Type_DATETIME,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("11")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("11\"xx\"")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("")),
sqltypes.MakeTrusted(querypb.Type_NULL_TYPE, nil),
sqltypes.MakeTrusted(querypb.Type_DECIMAL, []byte("210.01")),
sqltypes.NULL,
}
selectResult1.Rows = append(selectResult1.Rows, row)
}
selectResult2 := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "id",
Type: querypb.Type_INT32,
},
},
Rows: make([][]sqltypes.Value, 0, 256),
}
for i := 0; i < 201710; i++ {
row := []sqltypes.Value{
sqltypes.MakeTrusted(querypb.Type_INT32, []byte("1337")),
}
selectResult2.Rows = append(selectResult2.Rows, row)
}
schemaResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Table",
Type: querypb.Type_VARCHAR,
},
{
Name: "Create Table",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1")),
sqltypes.MakeTrusted(querypb.Type_VARCHAR,
[]byte("CREATE TABLE `t1-05-11` (`a` int(11) DEFAULT NULL,`b` varchar(100) DEFAULT NULL) ENGINE=InnoDB")),
},
},
}
tablesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Tables_in_test",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t1-05-11")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("t2-05-11")),
},
},
}
databasesResult := &sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "Databases_in_database",
Type: querypb.Type_VARCHAR,
},
},
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test1")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("test2")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("mysql")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("sys")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("information_schema")),
},
{
sqltypes.MakeTrusted(querypb.Type_VARCHAR, []byte("performance_schema")),
},
},
}
// fakedbs.
{
fakedbs.AddQueryPattern("show databases", databasesResult)
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("show create table .*", schemaResult)
fakedbs.AddQueryPattern("show tables from .*", tablesResult)
fakedbs.AddQueryPattern("select .* from `test1`.*", selectResult1)
fakedbs.AddQueryPattern("select .* from `test2`.*", selectResult2)
fakedbs.AddQueryPattern("set .*", &sqltypes.Result{})
}
args := &config.Config{
DatabaseRegexp: "^(mysql|sys|information_schema|performance_schema)$",
DatabaseInvertRegexp: true,
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Address: address,
ChunksizeInMB: 1,
Threads: 16,
StmtSize: 10000,
IntervalMs: 500,
SessionVars: "SET @@radon_streaming_fetch='ON', @@xx=1",
}
os.RemoveAll(args.Outdir)
if _, err := os.Stat(args.Outdir); os.IsNotExist(err) {
x := os.MkdirAll(args.Outdir, 0o777)
AssertNil(x)
}
// Dumper.
{
Dumper(log, args)
}
dat_test1, err_test1 := ioutil.ReadFile(args.Outdir + "/test1.t1-05-11.00001.sql")
assert.Nil(t, err_test1)
want_test1 := strings.Contains(string(dat_test1), `(11,"11\"xx\"","",NULL,210.01,NULL)`)
assert.True(t, want_test1)
dat_test2, err_test2 := ioutil.ReadFile(args.Outdir + "/test2.t1-05-11.00001.sql")
assert.Nil(t, err_test2)
want_test2 := strings.Contains(string(dat_test2), `(1337)`)
assert.True(t, want_test2)
}
================================================
FILE: common/loader.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"fmt"
"math/rand"
"os"
"path/filepath"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/xelabs/go-mydumper/config"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/common"
"github.com/xelabs/go-mysqlstack/xlog"
)
// Files tuple.
type Files struct {
databases []string
schemas []string
tables []string
}
var (
dbSuffix = "-schema-create.sql"
schemaSuffix = "-schema.sql"
tableSuffix = ".sql"
)
func loadFiles(log *xlog.Log, dir string) *Files {
files := &Files{}
if err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
log.Panicf("loader.file.walk.error:%+v", err)
}
if !info.IsDir() {
switch {
case strings.HasSuffix(path, dbSuffix):
files.databases = append(files.databases, path)
case strings.HasSuffix(path, schemaSuffix):
files.schemas = append(files.schemas, path)
default:
if strings.HasSuffix(path, tableSuffix) {
files.tables = append(files.tables, path)
}
}
}
return nil
}); err != nil {
log.Panicf("loader.file.walk.error:%+v", err)
}
return files
}
func restoreDatabaseSchema(log *xlog.Log, dbs []string, conn *Connection) {
for _, db := range dbs {
base := filepath.Base(db)
name := strings.TrimSuffix(base, dbSuffix)
data, err := ReadFile(db)
AssertNil(err)
sql := common.BytesToString(data)
err = conn.Execute(sql)
AssertNil(err)
log.Info("restoring.database[%s]", name)
}
}
func restoreTableSchema(log *xlog.Log, overwrite bool, tables []string, conn *Connection) {
for _, table := range tables {
// use
base := filepath.Base(table)
name := strings.TrimSuffix(base, schemaSuffix)
db := strings.Split(name, ".")[0]
tbl := strings.Split(name, ".")[1]
name = fmt.Sprintf("`%v`.`%v`", db, tbl)
log.Info("working.table[%s.%s]", db, tbl)
err := conn.Execute(fmt.Sprintf("USE `%s`", db))
AssertNil(err)
err = conn.Execute("SET FOREIGN_KEY_CHECKS=0")
AssertNil(err)
data, err := ReadFile(table)
AssertNil(err)
query1 := common.BytesToString(data)
querys := strings.Split(query1, ";\n")
for _, query := range querys {
if !strings.HasPrefix(query, "/*") && query != "" {
if overwrite {
log.Info("drop(overwrite.is.true).table[%s.%s]", db, tbl)
dropQuery := fmt.Sprintf("DROP TABLE IF EXISTS %s", name)
err = conn.Execute(dropQuery)
AssertNil(err)
}
err = conn.Execute(query)
AssertNil(err)
}
}
log.Info("restoring.schema[%s.%s]", db, tbl)
}
}
func restoreTable(log *xlog.Log, table string, conn *Connection) int {
bytes := 0
part := "0"
base := filepath.Base(table)
name := strings.TrimSuffix(base, tableSuffix)
splits := strings.Split(name, ".")
db := splits[0]
tbl := splits[1]
if len(splits) > 2 {
part = splits[2]
}
log.Info("restoring.tables[%s.%s].parts[%s].thread[%d]", db, tbl, part, conn.ID)
err := conn.Execute(fmt.Sprintf("USE `%s`", db))
AssertNil(err)
err = conn.Execute("SET FOREIGN_KEY_CHECKS=0")
AssertNil(err)
data, err := ReadFile(table)
AssertNil(err)
query1 := common.BytesToString(data)
querys := strings.Split(query1, ";\n")
bytes = len(query1)
for _, query := range querys {
if !strings.HasPrefix(query, "/*") && query != "" {
err = conn.Execute(query)
AssertNil(err)
}
}
log.Info("restoring.tables[%s.%s].parts[%s].thread[%d].done...", db, tbl, part, conn.ID)
return bytes
}
// Loader used to start the loader worker.
func Loader(log *xlog.Log, args *config.Config) {
pool, err := NewPool(log, args.Threads, args.Address, args.User, args.Password, args.SessionVars)
AssertNil(err)
defer pool.Close()
files := loadFiles(log, args.Outdir)
// database.
conn := pool.Get()
restoreDatabaseSchema(log, files.databases, conn)
pool.Put(conn)
// tables.
conn = pool.Get()
restoreTableSchema(log, args.OverwriteTables, files.schemas, conn)
pool.Put(conn)
// Shuffle the tables
for i := range files.tables {
j := rand.Intn(i + 1)
files.tables[i], files.tables[j] = files.tables[j], files.tables[i]
}
var wg sync.WaitGroup
var bytes uint64
t := time.Now()
for _, table := range files.tables {
conn := pool.Get()
wg.Add(1)
go func(conn *Connection, table string) {
defer func() {
wg.Done()
pool.Put(conn)
}()
r := restoreTable(log, table, conn)
atomic.AddUint64(&bytes, uint64(r))
}(conn, table)
}
tick := time.NewTicker(time.Millisecond * time.Duration(args.IntervalMs))
defer tick.Stop()
go func() {
for range tick.C {
diff := time.Since(t).Seconds()
bytes := float64(atomic.LoadUint64(&bytes) / 1024 / 1024)
rates := bytes / diff
log.Info("restoring.allbytes[%vMB].time[%.2fsec].rates[%.2fMB/sec]...", bytes, diff, rates)
}
}()
wg.Wait()
elapsed := time.Since(t).Seconds()
log.Info("restoring.all.done.cost[%.2fsec].allbytes[%.2fMB].rate[%.2fMB/s]", elapsed, float64(bytes/1024/1024), (float64(bytes/1024/1024) / elapsed))
}
================================================
FILE: common/loader_test.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/xelabs/go-mydumper/config"
"github.com/xelabs/go-mysqlstack/driver"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/sqltypes"
"github.com/xelabs/go-mysqlstack/xlog"
)
func TestLoader(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.DEBUG))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
// fakedbs.
{
fakedbs.AddQueryPattern("create database if not exists `test.?`", &sqltypes.Result{})
fakedbs.AddQuery("create table `t1-05-11` (`a` int(11) default null,`b` varchar(100) default null) engine=innodb", &sqltypes.Result{})
fakedbs.AddQueryPattern("use .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("insert into .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("drop table .*", &sqltypes.Result{})
fakedbs.AddQueryPattern("set foreign_key_checks=.*", &sqltypes.Result{})
}
args := &config.Config{
Outdir: "/tmp/dumpertest",
User: "mock",
Password: "mock",
Threads: 16,
Address: address,
IntervalMs: 500,
OverwriteTables: true,
}
// Loader.
{
Loader(log, args)
}
}
================================================
FILE: common/pool.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"sync"
"github.com/xelabs/go-mysqlstack/driver"
"github.com/xelabs/go-mysqlstack/xlog"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/sqltypes"
)
// Pool tuple.
type Pool struct {
mu sync.RWMutex
log *xlog.Log
conns chan *Connection
}
// Connection tuple.
type Connection struct {
ID int
client driver.Conn
}
// Execute used to executes the query.
func (conn *Connection) Execute(query string) error {
return conn.client.Exec(query)
}
// Fetch used to fetch the results.
func (conn *Connection) Fetch(query string) (*sqltypes.Result, error) {
return conn.client.FetchAll(query, -1)
}
// StreamFetch used to the results with streaming.
func (conn *Connection) StreamFetch(query string) (driver.Rows, error) {
return conn.client.Query(query)
}
// NewPool creates the new pool.
func NewPool(log *xlog.Log, cap int, address string, user string, password string, vars string) (*Pool, error) {
conns := make(chan *Connection, cap)
for i := 0; i < cap; i++ {
client, err := driver.NewConn(user, password, address, "", "utf8")
if err != nil {
return nil, err
}
conn := &Connection{ID: i, client: client}
if vars != "" {
conn.Execute(vars)
}
conns <- conn
}
return &Pool{
log: log,
conns: conns,
}, nil
}
// Get used to get one connection from the pool.
func (p *Pool) Get() *Connection {
conns := p.getConns()
if conns == nil {
return nil
}
conn := <-conns
return conn
}
// Put used to put one connection to the pool.
func (p *Pool) Put(conn *Connection) {
p.mu.RLock()
defer p.mu.RUnlock()
if p.conns == nil {
return
}
p.conns <- conn
}
// Close used to close the pool and the connections.
func (p *Pool) Close() {
p.mu.Lock()
defer p.mu.Unlock()
close(p.conns)
for conn := range p.conns {
conn.client.Close()
}
p.conns = nil
}
func (p *Pool) getConns() chan *Connection {
p.mu.Lock()
defer p.mu.Unlock()
return p.conns
}
================================================
FILE: common/pool_test.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package common
import (
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/xelabs/go-mysqlstack/driver"
"github.com/xelabs/go-mysqlstack/sqlparser/depends/sqltypes"
"github.com/xelabs/go-mysqlstack/xlog"
)
func TestPool(t *testing.T) {
log := xlog.NewStdLog(xlog.Level(xlog.INFO))
fakedbs := driver.NewTestHandler(log)
server, err := driver.MockMysqlServer(log, fakedbs)
assert.Nil(t, err)
defer server.Close()
address := server.Addr()
// fakedbs.
{
fakedbs.AddQueryPattern("select .*", &sqltypes.Result{})
}
pool, err := NewPool(log, 8, address, "mock", "mock", "")
assert.Nil(t, err)
var wg sync.WaitGroup
ch1 := make(chan struct{})
ch2 := make(chan struct{})
{
wg.Add(1)
go func() {
defer wg.Done()
for {
select {
case <-ch1:
return
default:
conn := pool.Get()
err := conn.Execute("select 1")
assert.Nil(t, err)
_, err = conn.Fetch("select 1")
assert.Nil(t, err)
_, err = conn.StreamFetch("select 1")
assert.Nil(t, err)
pool.Put(conn)
}
}
}()
}
{
wg.Add(1)
go func() {
defer wg.Done()
for {
select {
case <-ch2:
return
default:
conn := pool.Get()
conn.Execute("select 2")
assert.Nil(t, err)
conn.Fetch("select 2")
assert.Nil(t, err)
_, err = conn.StreamFetch("select 1")
assert.Nil(t, err)
pool.Put(conn)
}
}
}()
}
time.Sleep(time.Second)
close(ch1)
close(ch2)
pool.Close()
wg.Wait()
}
================================================
FILE: config/config.go
================================================
/*
* go-mydumper
* xelabs.org
*
* Copyright (c) XeLabs
* GPL License
*
*/
package config
import (
"errors"
"fmt"
"strings"
ini "gopkg.in/ini.v1"
)
// Config tuple.
type Config struct {
User string
Password string
Address string
ToUser string
ToPassword string
ToAddress string
ToDatabase string
ToEngine string
Database string
DatabaseRegexp string
DatabaseInvertRegexp bool
Table string
Outdir string
SessionVars string
Threads int
ChunksizeInMB int
StmtSize int
Allbytes uint64
Allrows uint64
OverwriteTables bool
Wheres map[string]string
Selects map[string]map[string]string
Filters map[string]map[string]string
// Interval in millisecond.
IntervalMs int
}
func ParseDumperConfig(file string) (*Config, error) {
args := &Config{
Wheres: make(map[string]string),
}
cfg, err := ini.Load(file)
if err != nil {
return nil, err
}
host := cfg.Section("mysql").Key("host").String()
if host == "" {
return nil, errors.New("empty host")
}
port, err := cfg.Section("mysql").Key("port").Int()
if port == 0 || err != nil {
return nil, errors.New("invalid port")
}
user := cfg.Section("mysql").Key("user").String()
if user == "" {
return nil, errors.New("empty user")
}
password := cfg.Section("mysql").Key("password").String()
database := cfg.Section("mysql").Key("database").String()
outdir := cfg.Section("mysql").Key("outdir").String()
if outdir == "" {
return nil, errors.New("empty outdir")
}
sessionVars := cfg.Section("mysql").Key("vars").String()
chunksizemb, err := cfg.Section("mysql").Key("chunksize").Int()
if err != nil {
return nil, fmt.Errorf("pasre mysql.chunksize failed")
}
table := cfg.Section("mysql").Key("table").String()
// Options
if err := LoadOptions(cfg, "where", args.Wheres); err != nil {
return nil, err
}
selects := cfg.Section("select").Keys()
for _, tblcol := range selects {
var table, column string
split := strings.Split(tblcol.Name(), ".")
table = split[0]
column = split[1]
if args.Selects == nil {
args.Selects = make(map[string]map[string]string)
}
if args.Selects[table] == nil {
args.Selects[table] = make(map[string]string)
}
args.Selects[table][column] = tblcol.String()
}
database_regexp := cfg.Section("database").Key("regexp").String()
database_invert_regexp, err := cfg.Section("database").Key("invert_regexp").Bool()
if err != nil {
database_invert_regexp = false
}
filters := cfg.Section("filter").Keys()
for _, tblcol := range filters {
var table, column string
split := strings.Split(tblcol.Name(), ".")
table = split[0]
column = split[1]
if args.Filters == nil {
args.Filters = make(map[string]map[string]string)
}
if args.Filters[table] == nil {
args.Filters[table] = make(map[string]string)
}
args.Filters[table][column] = tblcol.String()
}
args.Address = fmt.Sprintf("%s:%d", host, port)
args.User = user
args.Password = password
args.Database = database
args.DatabaseRegexp = database_regexp
args.DatabaseInvertRegexp = database_invert_regexp
args.Table = table
args.Outdir = outdir
args.ChunksizeInMB = chunksizemb
args.SessionVars = sessionVars
args.Threads = 16
args.StmtSize = 1000000
args.IntervalMs = 10 * 1000
return args, nil
}
func LoadOptions(cfg *ini.File, section string, optMap map[string]string) error {
opts := cfg.Section(section).Keys()
fmt.Printf("sec=%s keys=%+v\n", section, opts)
for _, key := range opts {
optMap[key.Name()] = key.String()
fmt.Printf("sec=%s %s=%s\n", section, key.Name(), key.String())
}
return nil
}
================================================
FILE: config/mydumper.ini.sample
================================================
[mysql]
# The host to connect to
host = 127.0.0.1
# TCP/IP port to conect to
port = 3306
# Username with privileges to run the dump
user = root
# User password
password = pwd
# Database to dump
database = xx
# Directory to dump files to
outdir = ./dumper-sql
# Split tables into chunks of this output file size. This value is in MB
chunksize = 128
# Session variables, split by ;
# vars= "xx=xx;xx=xx;"
vars= ""
# Dump some specific tables
# table = t1,t2
# Use this to use regexp to control what databases to export. These are optional
[database]
# regexp = ^(mysql|sys|information_schema|performance_schema)$
# As the used regexp lib does not allow for lookarounds, you may use this to invert the whole regexp
# This option should be refactored as soon as a GPLv3 compliant go-pcre lib is found
# invert_regexp = on
# Use this to restrict exported data. These are optional
[where]
# sample_table1 = created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
# sample_table2 = created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
# Use this to override value returned from tables. These are optional
[select]
# customer.first_name = CONCAT('Bohu', id)
# customer.last_name = 'Last'
# Use this to ignore the column to dump.
[filter]
# table1.column1 = ignore
================================================
FILE: go.mod
================================================
module github.com/xelabs/go-mydumper
go 1.15
require (
github.com/pierrre/gotestcover v0.0.0-20160517101806-924dca7d15f0 // indirect
github.com/shopspring/decimal v1.2.0 // indirect
github.com/smartystreets/goconvey v1.6.4 // indirect
github.com/stretchr/testify v1.7.0
github.com/xelabs/go-mysqlstack v0.0.0-20200603045106-7ffcfc8ed3c2
gopkg.in/ini.v1 v1.62.0
)
================================================
FILE: go.sum
================================================
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/pierrre/gotestcover v0.0.0-20160517101806-924dca7d15f0 h1:i5VIxp6QB8oWZ8IkK8zrDgeT6ORGIUeiN+61iETwJbI=
github.com/pierrre/gotestcover v0.0.0-20160517101806-924dca7d15f0/go.mod h1:4xpMLz7RBWyB+ElzHu8Llua96TRCB3YwX+l5EP1wmHk=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ=
github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/xelabs/go-mysqlstack v0.0.0-20200603045106-7ffcfc8ed3c2 h1:dht4Z+tHVYbHTH7DkXPco0TdfLVzZq+FaG8shtisCNM=
github.com/xelabs/go-mysqlstack v0.0.0-20200603045106-7ffcfc8ed3c2/go.mod h1:m9feITJq0ZXhBKK0R5BIJa5/2XDQguOWPRvMVyV4i4A=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/ini.v1 v1.62.0 h1:duBzk771uxoUuOlyRLkHsygud9+5lrlGjdFBb4mSKDU=
gopkg.in/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gitextract_qywr0j_b/ ├── .github/ │ └── workflows/ │ ├── mydumper-build.yml │ ├── mydumper-coverage.yml │ └── mydumper-test.yml ├── .gitignore ├── .travis.yml ├── LICENSE ├── Makefile ├── README.md ├── cmd/ │ ├── mydumper/ │ │ └── main.go │ └── myloader/ │ └── main.go ├── common/ │ ├── common.go │ ├── common_test.go │ ├── dumper.go │ ├── dumper_test.go │ ├── loader.go │ ├── loader_test.go │ ├── pool.go │ └── pool_test.go ├── config/ │ ├── config.go │ └── mydumper.ini.sample ├── go.mod └── go.sum
SYMBOL INDEX (47 symbols across 11 files)
FILE: cmd/mydumper/main.go
function initFlags (line 29) | func initFlags() {
function usage (line 33) | func usage() {
function main (line 38) | func main() {
FILE: cmd/myloader/main.go
function initFlags (line 31) | func initFlags() {
function usage (line 41) | func usage() {
function main (line 46) | func main() {
FILE: common/common.go
function WriteFile (line 21) | func WriteFile(file string, data string) error {
function ReadFile (line 43) | func ReadFile(file string) ([]byte, error) {
function AssertNil (line 48) | func AssertNil(err error) {
function EscapeBytes (line 55) | func EscapeBytes(bytes []byte) []byte {
FILE: common/common_test.go
function TestWriteReadFile (line 19) | func TestWriteReadFile(t *testing.T) {
function TestEscapeBytes (line 41) | func TestEscapeBytes(t *testing.T) {
FILE: common/dumper.go
function writeMetaData (line 25) | func writeMetaData(args *config.Config) {
function dumpDatabaseSchema (line 30) | func dumpDatabaseSchema(log *xlog.Log, conn *Connection, args *config.Co...
function dumpTableSchema (line 40) | func dumpTableSchema(log *xlog.Log, conn *Connection, args *config.Confi...
function dumpTable (line 50) | func dumpTable(log *xlog.Log, conn *Connection, args *config.Config, dat...
function allTables (line 154) | func allTables(log *xlog.Log, conn *Connection, database string) []string {
function allDatabases (line 165) | func allDatabases(log *xlog.Log, conn *Connection) []string {
function filterDatabases (line 176) | func filterDatabases(log *xlog.Log, conn *Connection, filter *regexp.Reg...
function Dumper (line 190) | func Dumper(log *xlog.Log, args *config.Config) {
FILE: common/dumper_test.go
function TestDumper (line 26) | func TestDumper(t *testing.T) {
function TestDumperAll (line 151) | func TestDumperAll(t *testing.T) {
function TestDumperMultiple (line 315) | func TestDumperMultiple(t *testing.T) {
function TestDumperSimpleRegexp (line 480) | func TestDumperSimpleRegexp(t *testing.T) {
function TestDumperComplexRegexp (line 654) | func TestDumperComplexRegexp(t *testing.T) {
function TestDumperInvertMatch (line 828) | func TestDumperInvertMatch(t *testing.T) {
FILE: common/loader.go
type Files (line 28) | type Files struct
function loadFiles (line 40) | func loadFiles(log *xlog.Log, dir string) *Files {
function restoreDatabaseSchema (line 66) | func restoreDatabaseSchema(log *xlog.Log, dbs []string, conn *Connection) {
function restoreTableSchema (line 81) | func restoreTableSchema(log *xlog.Log, overwrite bool, tables []string, ...
function restoreTable (line 118) | func restoreTable(log *xlog.Log, table string, conn *Connection) int {
function Loader (line 153) | func Loader(log *xlog.Log, args *config.Config) {
FILE: common/loader_test.go
function TestLoader (line 22) | func TestLoader(t *testing.T) {
FILE: common/pool.go
type Pool (line 22) | type Pool struct
method Get (line 71) | func (p *Pool) Get() *Connection {
method Put (line 81) | func (p *Pool) Put(conn *Connection) {
method Close (line 92) | func (p *Pool) Close() {
method getConns (line 103) | func (p *Pool) getConns() chan *Connection {
type Connection (line 29) | type Connection struct
method Execute (line 35) | func (conn *Connection) Execute(query string) error {
method Fetch (line 40) | func (conn *Connection) Fetch(query string) (*sqltypes.Result, error) {
method StreamFetch (line 45) | func (conn *Connection) StreamFetch(query string) (driver.Rows, error) {
function NewPool (line 50) | func NewPool(log *xlog.Log, cap int, address string, user string, passwo...
FILE: common/pool_test.go
function TestPool (line 23) | func TestPool(t *testing.T) {
FILE: config/config.go
type Config (line 21) | type Config struct
function ParseDumperConfig (line 50) | func ParseDumperConfig(file string) (*Config, error) {
function LoadOptions (line 146) | func LoadOptions(cfg *ini.File, section string, optMap map[string]string...
Condensed preview — 22 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (110K chars).
[
{
"path": ".github/workflows/mydumper-build.yml",
"chars": 389,
"preview": "name: mydumper Build\non: [push, pull_request]\njobs:\n\n build:\n name: Build\n runs-on: ubuntu-latest\n steps:\n\n "
},
{
"path": ".github/workflows/mydumper-coverage.yml",
"chars": 506,
"preview": "name: mydumper Coverage\non: [push, pull_request]\njobs:\n\n coverage:\n name: Coverage\n runs-on: ubuntu-latest\n st"
},
{
"path": ".github/workflows/mydumper-test.yml",
"chars": 385,
"preview": "name: mydumper Test\non: [push, pull_request]\njobs:\n\n test:\n name: Test\n runs-on: ubuntu-latest\n steps:\n\n -"
},
{
"path": ".gitignore",
"chars": 112,
"preview": "bin/*\npkg/*\nsrc/github.com/\n/.idea\n/myloader\n/mydumper\n*.sql\n*.ini\n/dumper-sql\n/coverage.txt\n\ntags\ncoverage.out\n"
},
{
"path": ".travis.yml",
"chars": 265,
"preview": "language: go\ndist: focal\nsudo: required\ngo:\n - 1.15.x\n\nbefore_install:\n - go get github.com/stretchr/testify/assert\n\ns"
},
{
"path": "LICENSE",
"chars": 35141,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
},
{
"path": "Makefile",
"chars": 606,
"preview": "export PATH := $(GOPATH)/bin:$(PATH)\n\nall: build test\n\nbuild:\n\t@echo \"--> Building...\"\n\tgo build -v -o bin/mydumper ./cm"
},
{
"path": "README.md",
"chars": 7712,
"preview": "[](https:"
},
{
"path": "cmd/mydumper/main.go",
"chars": 860,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage main\n\nimport (\n\t\"flag\"\n\t\"fmt\"\n"
},
{
"path": "cmd/myloader/main.go",
"chars": 1554,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage main\n\nimport (\n\t\"flag\"\n\t\"fmt\"\n"
},
{
"path": "common/common.go",
"chars": 1584,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"io\"\n\t\"io/io"
},
{
"path": "common/common_test.go",
"chars": 900,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"os\"\n\t\"testi"
},
{
"path": "common/dumper.go",
"chars": 7524,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"fmt\"\n\t\"rege"
},
{
"path": "common/dumper_test.go",
"chars": 24642,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"io/ioutil\"\n"
},
{
"path": "common/loader.go",
"chars": 5014,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"fmt\"\n\t\"math"
},
{
"path": "common/loader_test.go",
"chars": 1347,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"testing\"\n\n\t"
},
{
"path": "common/pool.go",
"chars": 2018,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"sync\"\n\n\t\"gi"
},
{
"path": "common/pool_test.go",
"chars": 1592,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage common\n\nimport (\n\t\"sync\"\n\t\"tes"
},
{
"path": "config/config.go",
"chars": 3827,
"preview": "/*\n * go-mydumper\n * xelabs.org\n *\n * Copyright (c) XeLabs\n * GPL License\n *\n */\n\npackage config\n\nimport (\n\t\"errors\"\n\t\"f"
},
{
"path": "config/mydumper.ini.sample",
"chars": 1244,
"preview": "[mysql]\n# The host to connect to\nhost = 127.0.0.1\n# TCP/IP port to conect to\nport = 3306\n# Username with privileges to r"
},
{
"path": "go.mod",
"chars": 371,
"preview": "module github.com/xelabs/go-mydumper\n\ngo 1.15\n\nrequire (\n\tgithub.com/pierrre/gotestcover v0.0.0-20160517101806-924dca7d1"
},
{
"path": "go.sum",
"chars": 3187,
"preview": "github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=\ngithub.com/davecgh/go-spew v1.1.0/go.m"
}
]
About this extraction
This page contains the full source code of the xelabs/go-mydumper GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 22 files (98.4 KB), approximately 29.1k tokens, and a symbol index with 47 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.