diff options
| author | Sanoj Unnikrishnan <sunnikri@redhat.com> | 2017-03-22 15:02:12 +0530 |
|---|---|---|
| committer | Atin Mukherjee <amukherj@redhat.com> | 2017-05-08 06:15:55 +0000 |
| commit | 2ae4b4058691b324535d802f4e6d24cce89a10e5 (patch) | |
| tree | c155918d41d0fce6348b4f2c0c2e077962ab5e11 /xlators/mgmt/glusterd/src/glusterd.h | |
| parent | 21115ae8b80c1ae0afe8427423ca5ecde40f0027 (diff) | |
Fixes quota aux mount failure
The aux mount is created on the first limit/remove_limit/list command
and it remains until volume is stopped / deleted / (quota is disabled)
, where we do a lazy unmount. If the process is uncleanly terminated,
then the mount entry remains and we get (Transport disconnected) error
on subsequent attempts to run quota list/limit-usage/remove commands.
Second issue, There is also a risk of inadvertent rm -rf on the
/var/run/gluster causing data loss for the user. Ideally, /var/run is
a temp path for application use and should not cause any data loss to
persistent storage.
Solution:
1) unmount the aux mount after each use.
2) clean stale mount before mounting, if any.
One caveat with doing mount/unmount on each command is that we cannot
use same mount point for both list and limit commands.
The reason for this is that list command needs mount to be accessible
in cli after response from glusterd, So it could be unmounted by a
limit command if executed in parallel (had we used same mount point)
Hence we use separate mount points for list and limit commands.
Change-Id: I4f9e39da2ac2b65941399bffb6440db8a6ba59d0
BUG: 1433906
Signed-off-by: Sanoj Unnikrishnan <sunnikri@redhat.com>
Reviewed-on: https://review.gluster.org/16938
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Manikandan Selvaganesh <manikandancs333@gmail.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd.h')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h index 55879aa22de..5d16b81bb6c 100644 --- a/xlators/mgmt/glusterd/src/glusterd.h +++ b/xlators/mgmt/glusterd/src/glusterd.h @@ -620,9 +620,15 @@ typedef ssize_t (*gd_serialize_t) (struct iovec outmsg, void *args); #define GLUSTERD_GET_QUOTAD_DIR(path, priv) \ snprintf (path, PATH_MAX, "%s/quotad", priv->workdir); -#define GLUSTERD_GET_QUOTA_AUX_MOUNT_PATH(abspath, volname, path) \ - snprintf (abspath, sizeof (abspath)-1, \ - DEFAULT_VAR_RUN_DIRECTORY"/%s%s", volname, path); +#define GLUSTERD_GET_QUOTA_LIMIT_MOUNT_PATH(abspath, volname, path) do { \ + snprintf (abspath, sizeof (abspath)-1, \ + DEFAULT_VAR_RUN_DIRECTORY"/%s_quota_limit%s", volname, path);\ + } while (0) + +#define GLUSTERD_GET_QUOTA_LIST_MOUNT_PATH(abspath, volname, path) do { \ + snprintf (abspath, sizeof (abspath)-1, \ + DEFAULT_VAR_RUN_DIRECTORY"/%s_quota_list%s", volname, path);\ + } while (0) #define GLUSTERD_GET_TMP_PATH(abspath, path) do { \ snprintf (abspath, sizeof (abspath)-1, \ @@ -711,11 +717,19 @@ typedef ssize_t (*gd_serialize_t) (struct iovec outmsg, void *args); uuid_utoa(MY_UUID)); \ } while (0) -#define GLUSTERFS_GET_AUX_MOUNT_PIDFILE(pidfile, volname) { \ +#define GLUSTERFS_GET_QUOTA_LIMIT_MOUNT_PIDFILE(pidfile, volname) { \ snprintf (pidfile, PATH_MAX-1, \ - DEFAULT_VAR_RUN_DIRECTORY"/%s.pid", volname); \ + DEFAULT_VAR_RUN_DIRECTORY"/%s_quota_limit.pid", \ + volname); \ } +#define GLUSTERFS_GET_QUOTA_LIST_MOUNT_PIDFILE(pidfile, volname) { \ + snprintf (pidfile, PATH_MAX-1, \ + DEFAULT_VAR_RUN_DIRECTORY"/%s_quota_list.pid", \ + volname); \ + } + + #define GLUSTERD_GET_UUID_NOHYPHEN(ret_string, uuid) do { \ char *snap_volname_ptr = ret_string; \ char tmp_uuid[64]; \ |