diff options
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 45c84e3959c..61cda56c6ff 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -3323,12 +3323,14 @@ InstallXLogFileSegment(XLogSegNo *segno, char *tmppath, } } - /* The target file should not exist */ - Assert(access(path, F_OK) != 0 && errno == ENOENT); - if (durable_rename(tmppath, path, LOG) != 0) + /* + * Perform the rename using link if available, paranoidly trying to avoid + * overwriting an existing file (there shouldn't be one). + */ + if (durable_rename_excl(tmppath, path, LOG) != 0) { LWLockRelease(ControlFileLock); - /* durable_rename already emitted log message */ + /* durable_rename_excl already emitted log message */ return false; } |