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https://issues.apache.org/jira/browse/CASSANDRA-13303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15897942#comment-15897942
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Benjamin Roth commented on CASSANDRA-13303:
-------------------------------------------

1. Happens in trunk
2. Maybe not clear enough: Table is simply not compacted as 
AbstractCompactionStrategy.worthDroppingTombstones returns false as 
droppableRatio is 0.0 

{code}
double droppableRatio = sstable.getEstimatedDroppableTombstoneRatio(gcBefore);
{code}

> CompactionsTest.testSingleSSTableCompactionWithSizeTieredCompaction super 
> flaky
> -------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13303
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13303
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benjamin Roth
>
> On my machine, this test succeeds maybe 1 out of 10 times.
> Cause seems to be that sstable is not elected for compation in 
> worthDroppingTombstones as droppableRatio is 0.0
> I don't know the primary intention of this test, so I didn't touch it but the 
> conditions are not safe.



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