Benjamin Coverston created CASSANDRA-4341:
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Summary: Small SSTable Segments Can Hurt Leveling Process
Key: CASSANDRA-4341
URL: https://issues.apache.org/jira/browse/CASSANDRA-4341
Project: Cassandra
Issue Type: Bug
Reporter: Benjamin Coverston
This concerns:
static int MAX_COMPACTING_L0 = 32;
Repair can create very small SSTable segments. We should consider moving to a
threshold that takes into account the size of the files brought into compaction
rather than the number of files for this and similar situations. Bringing the
small files from L0 to L1 magnifies the issue.
If there are too many very small files in L0 perhaps even an intermediate
compaction would even reduce the magnifying effect of a L0 to L1 compaction.
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