J.B. Langston created CASSANDRA-8329:
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Summary: LeveledCompactionStrategy should split large files across
data directories when compacting
Key: CASSANDRA-8329
URL: https://issues.apache.org/jira/browse/CASSANDRA-8329
Project: Cassandra
Issue Type: Bug
Reporter: J.B. Langston
Because we fall back to STCS for L0 when LCS gets behind, the sstables in L0
can get quite large during sustained periods of heavy writes. This can result
in large imbalances between data volumes when using JBOD support.
Eventually these large files get broken up as L0 sstables are moved up into
higher levels; however, because LCS only chooses a single volume on which to
write all of the sstables created during a single compaction, the imbalance is
persisted.
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