diff options
| author | Martin Schwenke <martin@meltin.net> | 2016-08-05 14:17:01 +1000 |
|---|---|---|
| committer | Martin Schwenke <martins@samba.org> | 2016-08-08 08:17:34 +0200 |
| commit | 1f942ec36c98127e25d7aa9b8370a4f621b9d362 (patch) | |
| tree | 4d72b0815ed21048cf3c719fd54cf7abb43a0530 /ctdb/doc | |
| parent | 88a579101537fb1ed5182c7c5da4ad49e0516546 (diff) | |
| download | samba-1f942ec36c98127e25d7aa9b8370a4f621b9d362.tar.gz | |
ctdb-mutex: Avoid corner case where helper is already reparented to init
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12113
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Diffstat (limited to 'ctdb/doc')
| -rw-r--r-- | ctdb/doc/cluster_mutex_helper.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ctdb/doc/cluster_mutex_helper.txt b/ctdb/doc/cluster_mutex_helper.txt index 0fc3a50dc7c..20c8eb2b51d 100644 --- a/ctdb/doc/cluster_mutex_helper.txt +++ b/ctdb/doc/cluster_mutex_helper.txt @@ -64,7 +64,8 @@ Valid status codes are: If a 0 status code is sent then it the helper should periodically check if the (original) parent processes still exists while awaiting termination. If the parent process disappears then the helper should -release the mutex and exit. This avoids stale mutexes. +release the mutex and exit. This avoids stale mutexes. Note that a +helper should never wait for parent process ID 1! If a non-0 status code is sent then the helper can exit immediately. However, if the helper does not exit then it must terminate if it |