From 1b02be21f271db6bd3cd43abb23fa596fcb6bac3 Mon Sep 17 00:00:00 2001 From: Teodor Sigaev Date: Mon, 27 Mar 2017 19:33:01 +0300 Subject: Fsync directory after creating or unlinking file. If file was created/deleted just before powerloss it's possible that file system will miss that. To prevent it, call fsync() where creating/ unlinkg file is critical. Author: Michael Paquier Reviewed-by: Ashutosh Bapat, Takayuki Tsunakawa, me --- src/backend/access/transam/commit_ts.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'src/backend/access/transam/commit_ts.c') diff --git a/src/backend/access/transam/commit_ts.c b/src/backend/access/transam/commit_ts.c index 8e1df6e0eab..03ffa209084 100644 --- a/src/backend/access/transam/commit_ts.c +++ b/src/backend/access/transam/commit_ts.c @@ -746,6 +746,12 @@ ShutdownCommitTs(void) { /* Flush dirty CommitTs pages to disk */ SimpleLruFlush(CommitTsCtl, false); + + /* + * fsync pg_commit_ts to ensure that any files flushed previously are durably + * on disk. + */ + fsync_fname("pg_commit_ts", true); } /* @@ -756,6 +762,12 @@ CheckPointCommitTs(void) { /* Flush dirty CommitTs pages to disk */ SimpleLruFlush(CommitTsCtl, true); + + /* + * fsync pg_commit_ts to ensure that any files flushed previously are durably + * on disk. + */ + fsync_fname("pg_commit_ts", true); } /* -- cgit v1.2.3