| Summary: | libglusterfsclient: DHT workaround is a major performance bottleneck | ||
|---|---|---|---|
| Product: | [Community] GlusterFS | Reporter: | Shehjar Tikoo <shehjart> |
| Component: | libglusterfsclient | Assignee: | Shehjar Tikoo <shehjart> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | mainline | CC: | gluster-bugs |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | RTNR | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
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Description
Shehjar Tikoo
2009-07-19 05:50:45 UTC
Proposed patches: release-2.0: http://patches.gluster.com/patch/784/ mainline: http://patches.gluster.com/patch/785/ As reported by Avati. In libgf_client_path_lookup, the workaround for DHT requirement for a lookup on / needs to be done only once when the xlator graph is inited. Doing it on every path's lookup results in a major performance penalty when using distribute subvolumes upwards of 16, because a lookup for the root needs to be sent on every subvolume. PATCH: http://patches.gluster.com/patch/785 in master (libglusterfsclient: Move DHT root-lookup workaround to init) PATCH: http://patches.gluster.com/patch/784 in release-2.0 (libglusterfsclient: Move DHT root-lookup workaround to init) |