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tsdb: sync temporary checkpoint directory before rename (#7004) 

Signed-off-by: zhulongcheng <zhulongcheng.dev@gmail.com>
This commit is contained in:
zhulongcheng 2020-09-07 22:34:49 +08:00 committed by GitHub
parent 51306cb158
commit 5ea6bdca1f
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1 changed files with 14 additions and 0 deletions
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14
tsdb/wal/checkpoint.go
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@ -249,6 +249,20 @@ func Checkpoint(logger log.Logger, w *WAL, from, to int, keep func(id uint64) bo
if err := cp.Close(); err != nil {
return nil, errors.Wrap(err, "close checkpoint")
}
// Sync temporary directory before rename.
df, err := fileutil.OpenDir(cpdirtmp)
if err != nil {
return nil, errors.Wrap(err, "open temporary checkpoint directory")
}
if err := df.Sync(); err != nil {
df.Close()
return nil, errors.Wrap(err, "sync temporary checkpoint directory")
}
if err = df.Close(); err != nil {
return nil, errors.Wrap(err, "close temporary checkpoint directory")
}
if err := fileutil.Replace(cpdirtmp, cpdir); err != nil {
return nil, errors.Wrap(err, "rename checkpoint directory")
}