Bug 195501
Summary: | lmtpd group lookups bypass nscd and cause high ldap or nis traffic/load | ||||||
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Product: | Red Hat Enterprise Linux 4 | Reporter: | Mark Gargiulo <mgargiulo> | ||||
Component: | cyrus-imapd | Assignee: | Tomas Janousek <tjanouse> | ||||
Status: | CLOSED ERRATA | QA Contact: | Brian Brock <bbrock> | ||||
Severity: | high | Docs Contact: | |||||
Priority: | high | ||||||
Version: | 4.0 | CC: | nate | ||||
Target Milestone: | --- | ||||||
Target Release: | --- | ||||||
Hardware: | i386 | ||||||
OS: | Linux | ||||||
Whiteboard: | |||||||
Fixed In Version: | RHBA-2007-0258 | Doc Type: | Bug Fix | ||||
Doc Text: | Story Points: | --- | |||||
Clone Of: | Environment: | ||||||
Last Closed: | 2007-05-01 17:16:59 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: | |||||||
Bug Blocks: | 176344 | ||||||
Attachments: |
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Description
Mark Gargiulo
2006-06-15 15:03:30 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. (In reply to comment #1) > This bug is seriously effecting our internal infrastructure AFAIK... Adding to > the RHEL 4.5 list. Peter, what are the chances this can be addressed? Perhaps we can recruit some testing from IS. :) + qa_ack for rhel-4.5 Mark/Nate: Can you help QE in testing this? After investigating the issue, the proper solution is not a private caching scheme for cyrus (proposed patch above), but using getgrouplist library call instead of pulling down complete list of all groups. I have verified that nscd cache is used for this call properly. Now just need to write the patch and verify that it works correctly :). Created attachment 137671 [details]
proposed patch
Asking for feedback from reporter. There are now cyrus-imapd rpm packages available (cyrus-imapd-2.2.12-7.RHEL4.*), so I would like to ask the reporter to provide the feedback if the network traffic and queuries to ldap or nis server improves with these new packages installed. Or pls provide more configuration details so I can verify your problem (and consequently it's solution :o)) Thanks I tested the patch supplied by Tomas Janousek and this seems to have fixed group lookup issue in my test environment so many thanks. 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 the 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/RHBA-2007-0258.html |