Bug 690239
| Summary: | gfs2: creating large files suddenly slow to a crawl [rhel-5.6.z] | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | RHEL Program Management <pm-rhel> | ||||
| Component: | kernel | Assignee: | Robert Peterson <rpeterso> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | urgent | ||||||
| Version: | 5.7 | CC: | adas, bmarzins, dhoward, jpirko, jwest, liko, msantang, pm-eus, rpeterso, rwheeler, ssaha, swhiteho, yugzhang | ||||
| Target Milestone: | rc | Keywords: | ZStream | ||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | kernel-2.6.18-238.10.1.el5 | Doc Type: | Bug Fix | ||||
| Doc Text: |
GFS2 (Global File System 2) keeps track of the list of resource groups to allow better performance when allocating blocks. Previously, when the user created a large file in GFS2, GFS2 could have run out of allocation space because it was confined to the recently-used resource groups. With this update, GFS2 uses the MRU (Most Recently Used) list instead of the list of the recently-used resource groups. The MRU list allows GFS2 to use all available resource groups and if a large span of blocks is in use, GFS2 uses allocation blocks of another resource group.
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Story Points: | --- | ||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-05-31 14:08:35 UTC | Type: | --- | ||||
| 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: | 683155 | ||||||
| Bug Blocks: | |||||||
| Attachments: |
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Description
RHEL Program Management
2011-03-23 16:53:53 UTC
Created attachment 487110 [details]
The 5.6.z crosswrite patch
The 5.7 patch does not apply directly to the 5.6.z kernel.
This one is the proper patch for 5.6.z. I verified its
contents using kompare against the 5.7 patch.
Patch provided; setting devel_ack. in kernel-2.6.18-238.10.1.el5 linux-2.6-fs-gfs2-creating-large-files-suddenly-slow-to-a-crawl.patch 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-2011-0833.html
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:
GFS2 (Global File System 2) keeps track of the list of resource groups to allow better performance when allocating blocks. Previously, when the user created a large file in GFS2, GFS2 could have run out of allocation space because it was confined to the recently-used resource groups. With this update, GFS2 uses the MRU (Most Recently Used) list instead of the list of the recently-used resource groups. The MRU list allows GFS2 to use all available resource groups and if a large span of blocks is in use, GFS2 uses allocation blocks of another resource group.
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