Bug 639073 - GFS1 vs GFS2 performance issue [rhel-5.5.z]
Summary: GFS1 vs GFS2 performance issue [rhel-5.5.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: rc
: ---
Assignee: Jiri Pirko
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On: 504188
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-09-30 18:37 UTC by RHEL Program Management
Modified: 2015-05-05 01:21 UTC (History)
25 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
In a two node cluster, the lock master of two folders can move 100 files from one folder to the other in less than 1 second. If a server is not the lock master for that folder, it would take that server 3-5 seconds to perform the same task on GFS1 (Global File System 1), and 30-50 seconds on GFS2 (Global File System 2). With this update, the aforementioned task takes less than 1 second on GFS1 and about 3 seconds on GFS2.
Clone Of:
Environment:
Last Closed: 2010-11-09 18:08:03 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0839 0 normal SHIPPED_LIVE Moderate: kernel security and bug fix update 2010-11-09 18:06:20 UTC

Description RHEL Program Management 2010-09-30 18:37:27 UTC 
This bug has been copied from bug #504188 and has been proposed
to be backported to 5.5 z-stream (EUS).
Comment 4 Jiri Pirko 2010-10-11 08:55:31 UTC 
in kernel 2.6.18-194.20.1.el5

linux-2.6-fs-dlm-fix-try-1cb-failure-part-2.patch
linux-2.6-fs-dlm-no-node-callback-when-try-1cb-lock-req-fails.patch
Comment 6 Eryu Guan 2010-11-09 02:18:09 UTC 
Confirmed patches listed in comment 4 are applied in kernel 2.6.18-194.26.1.el5 correctly. Set SanityOnly verified.
Comment 9 errata-xmlrpc 2010-11-09 18:08:03 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2010-0839.html
Comment 10 Martin Prpič 2010-11-11 13:56:17 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
In a two node cluster, the lock master of two folders can move 100 files from one folder to the other in less than 1 second. If a server is not the lock master for that folder, it would take that server 3-5 seconds to perform the same task on GFS1 (Global File System 1), and 30-50 seconds on GFS2 (Global File System 2). With this update, the aforementioned task takes less than 1 second on GFS1 and about 3 seconds on GFS2.
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