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Handle SIGTERM/SIGINT for graceful shutdown #13

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Handle SIGTERM/SIGINT for graceful shutdown #13

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10 changes: 9 additions & 1 deletion go/cmd/gh-ost/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ var AppVersion, GitCommit string
func acceptSignals(migrationContext *base.MigrationContext) {
c := make(chan os.Signal, 1)

signal.Notify(c, syscall.SIGHUP)
signal.Notify(c, syscall.SIGHUP, syscall.SIGTERM, syscall.SIGINT)
go func() {
for sig := range c {
switch sig {
Expand All @@ -40,6 +40,14 @@ func acceptSignals(migrationContext *base.MigrationContext) {
} else {
migrationContext.MarkPointOfInterest()
}
case syscall.SIGTERM, syscall.SIGINT:
migrationContext.Log.Infof("Received %s. Initiating graceful shutdown", sig)
select {
case migrationContext.PanicAbort <- fmt.Errorf("received signal: %s", sig):
default:
migrationContext.Log.Errorf("failed to send abort signal, forcing exit")
os.Exit(1)
}
}
}
}()
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