Bug 1338669

Summary:	AFR : fuse,nfs mount hangs when directories with same names are created and deleted continuously
Product:	[Community] GlusterFS	Reporter:	Sakshi <sabansal>
Component:	distribute	Assignee:	Sakshi <sabansal>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.8.0	CC:	chorn, kramdoss, nbalacha, ndevos, pcuzner, pkarampu, rcyriac, rgowdapp, rhinduja, rhs-bugs, sabansal, sankarshan, smohan, spalai, spandura, storage-qa-internal, vbellur
Target Milestone:	---	Keywords:	ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	triaged
Fixed In Version:	glusterfs-3.8.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1338634	Environment:
Last Closed:	2016-06-16 12:32:10 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	951195, 986916, 1115367, 1262680, 1266834, 1266836, 1286582, 1338634
Bug Blocks:	1121920, 1299184, 1338668

Description Sakshi 2016-05-23 08:36:22 UTC

+++ 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

Comment 1 Vijay Bellur 2016-05-23 08:45:27 UTC

REVIEW: http://review.gluster.org/14500 (dht: selfheal should wind mkdir call to subvols with ESTALE error) posted (#1) for review on release-3.8 by Sakshi Bansal

Comment 2 Vijay Bellur 2016-05-27 03:37:10 UTC

COMMIT: http://review.gluster.org/14500 committed in release-3.8 by Raghavendra G (rgowdapp) 
------
commit 57d686204c3f71bb6b3aa2383949e4c9b9738059
Author: Sakshi Bansal <sabansal>
Date:   Fri May 20 15:16:17 2016 +0530

    dht: selfheal should wind mkdir call to subvols with ESTALE error
    
    Backport of http://review.gluster.org/#/c/14496/
    
    > Change-Id: I7140e50263b5f28b900829592c664fa1d79f3f99
    > BUG: 1338634
    > Signed-off-by: Sakshi Bansal <sabansal>
    
    Change-Id: I7140e50263b5f28b900829592c664fa1d79f3f99
    BUG: 1338669
    Signed-off-by: Sakshi Bansal <sabansal>
    Reviewed-on: http://review.gluster.org/14500
    NetBSD-regression: NetBSD Build System <jenkins.org>
    CentOS-regression: Gluster Build System <jenkins.com>
    Smoke: Gluster Build System <jenkins.com>
    Reviewed-by: Raghavendra G <rgowdapp>

Comment 3 Niels de Vos 2016-06-16 12:32:10 UTC

This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-3.8.0, please open a new bug report.

glusterfs-3.8.0 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.

[1] http://blog.gluster.org/2016/06/glusterfs-3-8-released/
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user