[Bugs] [Bug 1338668] New: AFR : fuse, nfs mount hangs when directories with same names are created and deleted continuously

bugzilla at redhat.com bugzilla at redhat.com
Mon May 23 08:34:16 UTC 2016


https://bugzilla.redhat.com/show_bug.cgi?id=1338668

            Bug ID: 1338668
           Summary: AFR : fuse,nfs mount hangs when directories with same
                    names are created and deleted continuously
           Product: GlusterFS
           Version: 3.7.11
         Component: distribute
          Keywords: ZStream
          Severity: medium
          Priority: medium
          Assignee: bugs at gluster.org
          Reporter: sabansal at redhat.com
                CC: chorn at redhat.com, kramdoss at redhat.com,
                    nbalacha at redhat.com, ndevos at redhat.com,
                    pcuzner at redhat.com, pkarampu at redhat.com,
                    rcyriac at redhat.com, rgowdapp at redhat.com,
                    rhinduja at redhat.com, rhs-bugs at redhat.com,
                    sabansal at redhat.com, sankarshan at redhat.com,
                    smohan at redhat.com, spalai at redhat.com,
                    spandura at redhat.com, storage-qa-internal at redhat.com,
                    vbellur at redhat.com
        Depends On: 1115367, 1266834, 1286582, 1338634, 951195, 986916,
                    1262680, 1266836
            Blocks: 1299184, 1121920
             Group: redhat



+++ This bug was initially created as a clone of Bug #1338634 +++

+++ This bug was initially created as a clone of Bug #1286582 +++

+++ This bug was initially created as a clone of Bug #986916 +++

Description of problem:
=========================
In a distribute-replicate volume, when directories with same names are created
and deleted continuously on fuse and nfs mount points, after certain time the
mount points hang. 



How reproducible:

test_bug_922792.sh
===================
#!/bin/bash

dir=$(dirname $(readlink -f $0))
echo 'Script in '$dir
while :
do
        mkdir -p foo$1/bar/gee
        mkdir -p foo$1/bar/gne
        mkdir -p foo$1/lna/gme
        rm -rf foo$1
done

Steps to Reproduce:
===================
1. Create a distribute-replicate volume ( 6 x 2 ). 4 storage nodes . 3 bricks
on each storage node. 

2. Start the volume.

3. Create 2 fuse and 2 nfs mounts on each RHEL5.9 and RHEL6.4 clients. 

4. From all the mount points execute: "test_bug_922792.sh" 

Actual results:
===============
After sometime, fuse and nfs mount hangs. 

Expected results:
================
Fuse and nfs mount shouldn't hang.

--- Additional comment from Vijay Bellur on 2016-05-23 04:32:17 EDT ---

REVIEW: http://review.gluster.org/14496 (dht: selfheal should wind mkdir call
to subvols with ESTALE error) posted (#1) for review on master by Sakshi Bansal


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=951195
[Bug 951195] mkdir/rmdir loop causes gfid-mismatch on a 6 brick distribute
volume
https://bugzilla.redhat.com/show_bug.cgi?id=1115367
[Bug 1115367] "rm -rf *" from multiple mount points fails to remove
directories on all the subvolumes
https://bugzilla.redhat.com/show_bug.cgi?id=1121920
[Bug 1121920] AFR : fuse,nfs mount hangs when directories with same names
are created and deleted continuously
https://bugzilla.redhat.com/show_bug.cgi?id=1262680
[Bug 1262680] IO hung on v4 ganesha mount
https://bugzilla.redhat.com/show_bug.cgi?id=1266834
[Bug 1266834] AFR : fuse,nfs mount hangs when directories with same names
are created and deleted continuously
https://bugzilla.redhat.com/show_bug.cgi?id=1266836
[Bug 1266836] AFR : fuse,nfs mount hangs when directories with same names
are created and deleted continuously
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