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https://issues.apache.org/jira/browse/CASSANDRA-17272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcus Eriksson updated CASSANDRA-17272:
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Bug Category: Parent values: Degradation(12984)Level 1 values: Resource
Management(12995)
Complexity: Low Hanging Fruit
Component/s: Local/Compaction/LCS
Discovered By: Adhoc Test
Fix Version/s: 3.0.26
3.11.12
4.0.2
4.1
Severity: Normal
Status: Open (was: Triage Needed)
https://github.com/apache/cassandra/pull/1411
https://github.com/apache/cassandra/pull/1412
https://github.com/apache/cassandra/pull/1413
https://app.circleci.com/pipelines/github/krummas/cassandra?branch=marcuse%2Flcs_disk_space
https://app.circleci.com/pipelines/github/krummas/cassandra?branch=marcuse%2Flcs_disk_space-3.11
https://app.circleci.com/pipelines/github/krummas/cassandra?branch=marcuse%2Flcs_disk_space-4.0
> LeveledCompactionStrategy disk space check improvements
> -------------------------------------------------------
>
> Key: CASSANDRA-17272
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17272
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Compaction/LCS
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Priority: Normal
> Fix For: 3.0.26, 3.11.12, 4.0.2, 4.1
>
>
> We currently allow reducing scope (removing sstables from the compaction)
> when starting STCS-in-L0 with LCS if the compaction is too large for the
> available disk space. We can do the same for L0 -> L1 compactions - but we
> can only remove L0 sstables to avoid causing overlap in L1.
> Also, in 3.0, when starting an LCS compaction we try to [get a writeable
> location|https://github.com/apache/cassandra/blob/b1a8a56c563b85ab9a34d3bbf9c16278dd441157/src/java/org/apache/cassandra/db/compaction/writers/CompactionAwareWriter.java#L128]
> where the full result of the compaction will fit - here we should only get a
> directory where the first sstable fits, otherwise the compaction might fail
> even though there is enough space in total among the data directories
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