Bug 742431
| Summary: | modclusterd memory footprint is growing over time | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Fabio Massimo Di Nitto <fdinitto> |
| Component: | clustermon | Assignee: | Jan Pokorný [poki] <jpokorny> |
| Status: | CLOSED ERRATA | QA Contact: | Cluster QE <mspqa-list> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 6.1 | CC: | bbrock, c.handel, cluster-maint, edamato, james.brown, jpokorny, jwest, kabbott, rmunilla, rsteiger, sbradley, tao, uwe.knop |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | modcluster-0.16.2-16.el6 | Doc Type: | Bug Fix |
| Doc Text: |
Cause
* trigger unknown, presumably uncommon event/attribute of the environment
Consequence
* outgoing queues in inter-nodes communication are growing over time
Fix
* better balanced inter-nodes communication + restriction of the queues
Result
* resources utilization kept at reasonable level
* possible queues interventions logged in /var/log/clumond.log
|
Story Points: | --- |
| Clone Of: | 618321 | Environment: | |
| Last Closed: | 2012-06-20 11:57:14 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: | 618321 | ||
| Bug Blocks: | 756082 | ||
| Attachments: | |||
|
Comment 1
Fabio Massimo Di Nitto
2011-09-30 06:00:25 UTC
Created attachment 535954 [details] [PATCH 1/6] fix bz742431: clarify recv/read_restart+send/write_restart Created attachment 535955 [details] [PATCH 2/6] fix bz742431: introduce per-peer outgoing queue pruning Created attachment 535956 [details] [PATCH 3/6] fix bz742431: limit peer's send() to one message only Created attachment 535957 [details] [PATCH 4/6] fix bz742431: read all available with peer's receive() Created attachment 535959 [details] [PATCH 5/6] fix bz742431: split+restructure poll handling in communicator Created attachment 535961 [details] [PATCH 6/6] fix bz742431: turn off Nagle's alg. in peers' communication Created attachment 535963 [details] bz742431: additional performance improvement patch [1/2] Created attachment 535964 [details] bz742431: additional performance improvement patch [2/2] As per Comment https://bugzilla.redhat.com/show_bug.cgi?id=618321#c75 acking this for QA using an artificial test as described. Created attachment 541598 [details] bz742431: additional fix for a minor memory leak Original patch attachment 529083 [details] (accidentally posted by bug 618321 whereas it should have been here) revisited. Recap: the leaking triggered with connections to /var/run/clumond.sock (2 B per connection IIRC, incomparable with that big memory issue)
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:
Cause
* trigger unknown, presumably uncommon event/attribute of the environment
Consequence
* outgoing queues in inter-nodes communication are growing over time
Fix
* better balanced inter-nodes communication + restriction of the queues
Result
* resources utilization kept at reasonable level
* possible queues interventions logged in /var/log/clumond.log
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0750.html |