Bug 1122586

Summary:	Read/write speed on a dispersed volume is poor
Product:	[Community] GlusterFS	Reporter:	Xavi Hernandez <jahernan>
Component:	disperse	Assignee:	Xavi Hernandez <jahernan>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	mainline	CC:	bugs, ndevos, sasundar
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.7.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1140844 (view as bug list)		Environment:
Last Closed:	2015-05-14 17:26:31 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:

Description Xavi Hernandez 2014-07-23 14:36:11 UTC

Description of problem:

Dispersed volumes are much slower than replicate

Version-Release number of selected component (if applicable): 3.6


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

This is caused by a sequential inodelk/entrylk for each operation

Comment 1 Anand Avati 2014-07-23 14:37:49 UTC

REVIEW: http://review.gluster.org/8369 (ec: Optimize read/write performance) posted (#1) for review on master by Xavier Hernandez (xhernandez)

Comment 2 Anand Avati 2014-09-10 07:41:11 UTC

REVIEW: http://review.gluster.org/8369 (ec: Optimize read/write performance) posted (#2) for review on master by Xavier Hernandez (xhernandez)

Comment 3 Anand Avati 2014-09-16 06:12:20 UTC

COMMIT: http://review.gluster.org/8369 committed in master by Vijay Bellur (vbellur) 
------
commit d97863562bb0d2f685df3d2e3aa4bef1299c8307
Author: Xavier Hernandez <xhernandez>
Date:   Mon Jul 14 17:34:04 2014 +0200

    ec: Optimize read/write performance
    
    This patch significantly improves performance of read/write
    operations on a dispersed volume by reusing previous inodelk/
    entrylk operations on the same inode/entry. This reduces the
    latency of each individual operation considerably.
    
    Inode version and size are also updated when needed instead
    of on each request. This gives an additional boost.
    
    Change-Id: I4b98d5508c86b53032e16e295f72a3f83fd8fcac
    BUG: 1122586
    Signed-off-by: Xavier Hernandez <xhernandez>
    Reviewed-on: http://review.gluster.org/8369
    Tested-by: Gluster Build System <jenkins.com>
    Reviewed-by: Jeff Darcy <jdarcy>
    Reviewed-by: Dan Lambright <dlambrig>

Comment 4 Niels de Vos 2015-05-14 17:26:31 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-3.7.0, please open a new bug report.

glusterfs-3.7.0 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://thread.gmane.org/gmane.comp.file-systems.gluster.devel/10939
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user

Comment 5 Niels de Vos 2015-05-14 17:35:30 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-3.7.0, please open a new bug report.

glusterfs-3.7.0 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://thread.gmane.org/gmane.comp.file-systems.gluster.devel/10939
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user

Comment 6 Niels de Vos 2015-05-14 17:37:52 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-3.7.0, please open a new bug report.

glusterfs-3.7.0 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://thread.gmane.org/gmane.comp.file-systems.gluster.devel/10939
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user

Comment 7 Niels de Vos 2015-05-14 17:42:54 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-3.7.0, please open a new bug report.

glusterfs-3.7.0 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://thread.gmane.org/gmane.comp.file-systems.gluster.devel/10939
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user