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Add MaxAllowedPacketMB config to mysqldump args #162

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Merged
merged 2 commits into from
Sep 18, 2017
Merged

Add MaxAllowedPacketMB config to mysqldump args #162

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4eacd61
Add MaxAllowedPacketMB config to mysqldump args
hoffoo Sep 14, 2017
1e27f8c
add toml tag
hoffoo Sep 15, 2017
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1 change: 1 addition & 0 deletions canal/canal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,7 @@ func (c *Canal) prepareDumper() error {
c.dumper.SetCharset(charset)

c.dumper.SkipMasterData(c.cfg.Dump.SkipMasterData)
c.dumper.SetMaxAllowedPacket(c.cfg.Dump.MaxAllowedPacketMB)

for _, ignoreTable := range c.cfg.Dump.IgnoreTables {
if seps := strings.Split(ignoreTable, ","); len(seps) == 2 {
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3 changes: 3 additions & 0 deletions canal/config.go
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Expand Up @@ -30,6 +30,9 @@ type DumpConfig struct {
// Set true to skip --master-data if we have no privilege to do
// 'FLUSH TABLES WITH READ LOCK'
SkipMasterData bool `toml:"skip_master_data"`

// Set to change the default max_allowed_packet size
MaxAllowedPacketMB int `toml:"max_allowed_packet_mb"`
}

type Config struct {
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9 changes: 9 additions & 0 deletions dump/dump.go
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Expand Up @@ -33,6 +33,7 @@ type Dumper struct {
ErrOut io.Writer

masterDataSkipped bool
maxAllowedPacket int
}

func NewDumper(executionPath string, addr string, user string, password string) (*Dumper, error) {
Expand Down Expand Up @@ -74,6 +75,10 @@ func (d *Dumper) SkipMasterData(v bool) {
d.masterDataSkipped = v
}

func (d *Dumper) SetMaxAllowedPacket(i int) {
d.maxAllowedPacket = i
}

func (d *Dumper) AddDatabases(dbs ...string) {
d.Databases = append(d.Databases, dbs...)
}
Expand Down Expand Up @@ -117,6 +122,10 @@ func (d *Dumper) Dump(w io.Writer) error {
args = append(args, "--master-data")
}

if d.maxAllowedPacket > 0 {
args = append(args, fmt.Sprintf("--max_allowed_packet=%dM", d.maxAllowedPacket))
}

args = append(args, "--single-transaction")
args = append(args, "--skip-lock-tables")

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