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ctdb-mutex: Test the lock by locking a 2nd byte range

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Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This commit is contained in:
Martin Schwenke 2022-02-08 12:23:42 +11:00 committed by Martin Schwenke
parent 97a1714ee9
commit 061315cc79
1 changed files with 17 additions and 0 deletions
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17
ctdb/server/ctdb_mutex_fcntl_helper.c
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@ -265,6 +265,23 @@ static void lock_io_check_loop(struct tevent_req *subreq)
goto done;
}
/*
* Attempt to lock a 2nd byte range. Using a blocking lock
* encourages ping timeouts if the cluster filesystem is in a
* bad state. It also makes testing easier.
*/
ret = fcntl_lock_fd(fd, true, 1);
if (ret != 0) {
fprintf(stderr,
"%s: "
"lock fail - lock file \"%s\" test lock error (%d)\n",
progname,
state->lock_file,
ret);
goto done;
}
/* Unlock occurs on close */
close(fd);
subreq = tevent_wakeup_send(