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preparing for row-copy via app

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This commit is contained in:
Shlomi Noach 2016-07-08 10:04:22 +02:00
parent 44b43efa45
commit 598a8acb12
2 changed files with 2 additions and 0 deletions
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1
go/base/context.go
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@ -82,6 +82,7 @@ type MigrationContext struct {
InitiallyDropOldTable bool
InitiallyDropGhostTable bool
CutOverType CutOver
ManagedRowCopy bool
TableEngine string
RowsEstimate int64

1
go/cmd/gh-ost/main.go
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@ -67,6 +67,7 @@ func main() {
flag.BoolVar(&migrationContext.InitiallyDropOldTable, "initially-drop-old-table", false, "Drop a possibly existing OLD table (remains from a previous run?) before beginning operation. Default is to panic and abort if such table exists")
flag.BoolVar(&migrationContext.InitiallyDropGhostTable, "initially-drop-ghost-table", false, "Drop a possibly existing Ghost table (remains from a previous run?) before beginning operation. Default is to panic and abort if such table exists")
cutOver := flag.String("cut-over", "atomic", "choose cut-over type (atomic, two-step, voluntary-lock)")
flag.BoolVar(&migrationContext.ManagedRowCopy, "managed-rowcopy", false, "Copy row data by first reading rows into app, then applying them (default: rowcopy local to applied server via INSERT INTO ... SELECT)")
flag.BoolVar(&migrationContext.SwitchToRowBinlogFormat, "switch-to-rbr", false, "let this tool automatically switch binary log format to 'ROW' on the replica, if needed. The format will NOT be switched back. I'm too scared to do that, and wish to protect you if you happen to execute another migration while this one is running")
chunkSize := flag.Int64("chunk-size", 1000, "amount of rows to handle in each iteration (allowed range: 100-100,000)")