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https://issues.apache.org/jira/browse/CASSANDRA-2433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-2433:
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Attachment: 2433_v2.patch
Attached v2 is rebased and use a higher conviction threshold before deciding to
fail the repair, as the goal here is to avoid having a repair getting stuck for
hours, but we want to avoid stopping a repair just because a node got into a
longer than usual GC pause.
The threshold used is twice the configured phi_convict_threshold. This give 16
by default, which if I trust the original 'phi accrual failure detection'
should give an order of magnitude less false positive than 8 (for about an
order of magnitude in the detection time though). It feels reasonable to me but
if a FD specialist want to voice his opinion, please do.
> Failed Streams Break Repair
> ---------------------------
>
> Key: CASSANDRA-2433
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2433
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Benjamin Coverston
> Assignee: Sylvain Lebresne
> Labels: repair
> Fix For: 0.8.5
>
> Attachments:
> 0001-Put-repair-session-on-a-Stage-and-add-a-method-to-re-v4.patch,
> 0002-Register-in-gossip-to-handle-node-failures-v4.patch,
> 0003-Report-streaming-errors-back-to-repair-v4.patch,
> 0004-Reports-validation-compaction-errors-back-to-repair-v4.patch,
> 2433.patch, 2433_v2.patch
>
>
> Running repair in cases where a stream fails we are seeing multiple problems.
> 1. Although retry is initiated and completes, the old stream doesn't seem to
> clean itself up and repair hangs.
> 2. The temp files are left behind and multiple failures can end up filling up
> the data partition.
> These issues together are making repair very difficult for nearly everyone
> running repair on a non-trivial sized data set.
> This issue is also being worked on w.r.t CASSANDRA-2088, however that was
> moved to 0.8 for a few reasons. This ticket is to fix the immediate issues
> that we are seeing in 0.7.
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