| Summary: | Replicate spawns read loops even after destination fails | ||
|---|---|---|---|
| Product: | [Community] GlusterFS | Reporter: | Shehjar Tikoo <shehjart> |
| Component: | replicate | Assignee: | Pranith Kumar K <pkarampu> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | low | ||
| Version: | 3.1-alpha | CC: | amarts, gluster-bugs, pkarampu, vijay |
| 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: | RTP | Mount Type: | nfs |
| Documentation: | DNR | 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
2010-07-20 05:21:23 UTC
During self-heal, if the destination node goes down again, replicate continues to spawn read loops for reading from the source node. This causes delays in serving IO requests from clients. on AWS instances, read loops are being spawned even without nodes going up and down. Seen performance degradation from rc9 to rc10 nfs-beta branch. The bug does not occur on nfs-beta. However in order to verify whether this is fixed on 3.1, bug 762692, which is still reproducible on 3.1 has to be fixed. Hence leaving this bug open. PATCH: http://patches.gluster.com/patch/6147 in master (cluster/afr: stop spawning self-heal loops when the self-heal fails) |