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Bug 1225743

Summary:	[AFR-V2] - afr_final_errno() should treat op_ret > 0 also as success
Product:	[Community] GlusterFS	Reporter:	Krutika Dhananjay <kdhananj>
Component:	replicate	Assignee:	bugs <bugs>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	3.7.0	CC:	bugs, gluster-bugs
Target Milestone:	---	Keywords:	Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.7.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1225491
Clones:	1226163 (view as bug list)		Environment:
Last Closed:	2015-06-02 08:03:43 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:	1225491, 1225745
Bug Blocks:	1226163

Description Krutika Dhananjay 2015-05-28 07:36:28 UTC

+++ This bug was initially created as a clone of Bug #1225491 +++

Description of problem:

Figured while reading code that the function afr_final_errno() does not treat op_ret > 0 as success.

What that means is that in inode write fops (where this function gets called by __afr_inode_write_finalize()), op_ret could be > 0 on success. And if the inode write fop failed on one or more subvols, there is a remote possibility that AFR, instead of choosing the most severe errno from the set of errnos returned by the subvolumes that saw a failure, winds up picking junk errno from the subvol where the fop actually succeeded. 

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


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

--- Additional comment from Anand Avati on 2015-05-27 09:35:46 EDT ---

REVIEW: http://review.gluster.org/10946 (cluster/afr: Treat op_ret >= 0 as success in afr_final_errno()) posted (#1) for review on master by Krutika Dhananjay (kdhananj)

--- Additional comment from Anand Avati on 2015-05-28 01:36:28 EDT ---

COMMIT: http://review.gluster.org/10946 committed in master by Pranith Kumar Karampuri (pkarampu) 
------
commit 9e1bb640983f72858aeabd793bbb7fc8b5c71b09
Author: Krutika Dhananjay <kdhananj>
Date:   Wed May 27 19:03:12 2015 +0530

    cluster/afr: Treat op_ret >= 0 as success in afr_final_errno()
    
    Change-Id: I7ec29428b7f7ef249014f948a5d616bfb8aaf80d
    BUG: 1225491
    Signed-off-by: Krutika Dhananjay <kdhananj>
    Reviewed-on: http://review.gluster.org/10946
    Tested-by: NetBSD Build System
    Reviewed-by: Ravishankar N <ravishankar>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu>

Comment 1 Anand Avati 2015-05-28 08:47:17 UTC

REVIEW: http://review.gluster.org/10960 (cluster/afr: Treat op_ret >= 0 as success in afr_final_errno()) posted (#1) for review on release-3.7 by Krutika Dhananjay (kdhananj)

Comment 2 Anand Avati 2015-05-29 02:23:17 UTC

COMMIT: http://review.gluster.org/10960 committed in release-3.7 by Pranith Kumar Karampuri (pkarampu) 
------
commit 9a1cf9327e5f2bc5afbafec7a3659e92e3a1bc2f
Author: Krutika Dhananjay <kdhananj>
Date:   Wed May 27 19:03:12 2015 +0530

    cluster/afr: Treat op_ret >= 0 as success in afr_final_errno()
    
            Backport of: http://review.gluster.org/10946
    
    Change-Id: I77e7ec8627846d1d7e3198459ea7b8624b5f450b
    BUG: 1225743
    Signed-off-by: Krutika Dhananjay <kdhananj>
    Reviewed-on: http://review.gluster.org/10960
    Tested-by: Gluster Build System <jenkins.com>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu>
    Tested-by: NetBSD Build System

Comment 3 Niels de Vos 2015-06-02 08:03:43 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-3.7.1, please reopen this bug report.

glusterfs-3.7.1 has been announced on the Gluster Packaging mailinglist [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://thread.gmane.org/gmane.comp.file-systems.gluster.packaging/1
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user