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Jeremiah Jordan commented on CASSANDRA-10099: --------------------------------------------- This is a pretty invasive and possibly dangerous change to do in a stable branch, but you could probably backport it yourself if you don't mind building your own jars. > Improve concurrency in CompactionStrategyManager > ------------------------------------------------ > > Key: CASSANDRA-10099 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10099 > Project: Cassandra > Issue Type: Improvement > Reporter: Yuki Morishita > Assignee: Marcus Eriksson > Labels: compaction, lcs > Fix For: 3.6 > > > Continue discussion from CASSANDRA-9882. > CompactionStrategyManager(WrappingCompactionStrategy for <3.0) tracks SSTable > changes mainly for separating repaired / unrepaired SSTables (+ LCS manages > level). > This is blocking operation, and can lead to block of flush etc. when > determining next background task takes longer. > Explore the way to mitigate this concurrency issue. -- This message was sent by Atlassian JIRA (v6.3.4#6332)