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In pg_ctl, report unexpected failure to stat() the postmaster.pid file.

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Any error other than ENOENT is a bit suspicious here, and perhaps should
not be grounds for assuming the postmaster has failed.  For the moment
though, just report it, and don't change the behavior otherwise.  The
intent is mainly to try to determine why we are seeing intermittent
failures in this area on some buildfarm members.

Back-patch to 9.5 where some of these failures have happened.
This commit is contained in:
Tom Lane
2015-07-25 15:58:14 -04:00
parent 158d61534e
commit b7b5a1899a
1 changed files with 5 additions and 0 deletions
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5
src/bin/pg_ctl/pg_ctl.c
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@ -648,7 +648,12 @@ test_postmaster_connection(bool do_checkpoint)
struct stat statbuf;
if (stat(pid_file, &statbuf) != 0)
{
if (errno != ENOENT)
write_stderr(_("\n%s: could not stat file \"%s\": %s\n"),
progname, pid_file, strerror(errno));
return PQPING_NO_RESPONSE;
}
if (found_stale_pidfile)
{