[Bugs] [Bug 1174247] New: Glusterfs outputs a lot of warnings and errors when quota is enabled

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1174247

            Bug ID: 1174247
           Summary: Glusterfs outputs a lot of warnings and errors when
                    quota is enabled
           Product: GlusterFS
           Version: mainline
         Component: quota
          Keywords: Triaged
          Severity: urgent
          Priority: high
          Assignee: bugs at gluster.org
          Reporter: ndevos at redhat.com
                CC: bugs at gluster.org, gluster-bugs at redhat.com,
                    ndevos at redhat.com, rgowdapp at redhat.com,
                    vshastry at redhat.com, zab at l3s.de
            Blocks: 1174170



+++ This bug was initially created as a clone of Bug #1174170 +++
+++                                                           +++
+++ Use this bug to include a fix in the master branch.       +++

Description of problem:
We are getting quite a lot of warnings and error messages in our brick logs.
The installed glusterfs version is 3.6.1 on a CentOS 6 machine.

Disabling the quota system fixes the output problem. We didn't really see any
actual negative impact from these messages, but didn't try to hard yet either.
Quota limit worked tho.

After disabling and reenabling quota, we also get the following messages:
E [marker.c:2542:marker_removexattr_cbk] 0-data-marker: No data available
occurred while creating symlinks

Brick log output:
2014-12-15 09:06:10.175551] W [marker.c:2752:marker_readdirp_cbk]
0-data-marker: Couln't build loc for
9d0bc464-2fe3-4320-b4a1-ce46d829d073/99998.jpeg
[2014-12-15 09:06:10.175773] E [inode.c:1151:__inode_path] (-->
/usr/lib64/libglusterfs.so.0(_gf_log_callingfn+0x1e0)[0x7f35536de420] (-->
/usr/lib64/libglusterfs.so.0(__inode_path+0x2ae)[0x7f35536fd17e] (-->
/usr/lib64/libglusterfs.so.0(inode_path+0x4a)[0x7f35536fd25a] (-->
/usr/lib64/glusterfs/3.6.1/xlator/features/marker.so(marker_inode_loc_fill+0x7a)[0x7f35420d6e0a]
(-->
/usr/lib64/glusterfs/3.6.1/xlator/features/marker.so(marker_readdirp_cbk+0x1e1)[0x7f35420d7031]
))))) 0-: Assertion failed: 0
[2014-12-15 09:06:10.175998] W [inode.c:1152:__inode_path] (-->
/usr/lib64/libglusterfs.so.0(_gf_log_callingfn+0x1e0)[0x7f35536de420] (-->
/usr/lib64/libglusterfs.so.0(__inode_path+0x2e2)[0x7f35536fd1b2] (-->
/usr/lib64/libglusterfs.so.0(inode_path+0x4a)[0x7f35536fd25a] (-->
/usr/lib64/glusterfs/3.6.1/xlator/features/marker.so(marker_inode_loc_fill+0x7a)[0x7f35420d6e0a]
(-->
/usr/lib64/glusterfs/3.6.1/xlator/features/marker.so(marker_readdirp_cbk+0x1e1)[0x7f35420d7031]
))))) 0-data-marker: invalid inode
[2014-12-15 09:06:10.176028] W [marker.c:2752:marker_readdirp_cbk]
0-data-marker: Couln't build loc for
9d0bc464-2fe3-4320-b4a1-ce46d829d073/99999.jpeg

# gluster volume info
Volume Name: data
Type: Replicate
Volume ID: 34411f11-0cb7-43a4-adca-80a237694406
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: gluster1:/data/brick0/brick
Brick2: gluster2:/data/brick0/brick
Options Reconfigured:
diagnostics.brick-log-level: WARNING
performance.cache-size: 2048MB
performance.write-behind-window-size: 512MB
performance.flush-behind: on
features.quota: on
performance.stat-prefetch: on

Version-Release number of selected component (if applicable):
3.6.1

How reproducible:
Every time on our configuration, but we didn't set up a test cluster to try it
out.

Steps to Reproduce:
1. We simply enable quota and the messages appear.

Actual results:
The log output above.

Expected results:
No warnings/errors in brick log.

--- Additional comment from Jan-Hendrik Zab on 2014-12-15 11:18:27 CET ---

The patch was supplied by Niels de Vos, it should stop the logging, but it
doesn't fix the actual problem.

So far, we couldn't test the patch on our production system.

--- Additional comment from Niels de Vos on 2014-12-15 11:31:03 CET ---

This issue has been made visible with http://review.gluster.org/8296 , adding
Varun and Raghavendra on CC so that they can check if a readdirp_cbk() with an
entry->inode == NULL is valid in the 1st place.


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1174170
[Bug 1174170] Glusterfs outputs a lot of warnings and errors when quota is
enabled
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