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Posted to commits@cassandra.apache.org by "Jordan West (Jira)" <ji...@apache.org> on 2020/04/07 16:59:00 UTC
[jira] [Updated] (CASSANDRA-15674) liveDiskSpaceUsed and
totalDiskSpaceUsed get corrupted if IndexSummaryRedistribution gets
interrupted
[ https://issues.apache.org/jira/browse/CASSANDRA-15674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jordan West updated CASSANDRA-15674:
------------------------------------
Reviewers: Jordan West, Jordan West (was: Jordan West)
Jordan West, Jordan West
Status: Review In Progress (was: Patch Available)
> liveDiskSpaceUsed and totalDiskSpaceUsed get corrupted if IndexSummaryRedistribution gets interrupted
> -----------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15674
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15674
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Compaction, Observability/Metrics
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: 4.0-alpha
>
>
> IndexSummaryRedistribution is a compaction task and as such extends Holder and supports cancelation by throwing a CompactionInterruptedException. The issue is that IndexSummaryRedistribution tries to use transactions, but mutates the sstable in-place; transaction is unable to roll back.
> This would be fine (only updates summary) if it wasn’t for the fact the task attempts to also mutate the two metrics liveDiskSpaceUsed and totalDiskSpaceUsed, since these can’t be rolled back any cancelation could corrupt these metrics.
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