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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-11301) Non-obsoleting compaction operations over compressed files can impose rate limit on normal reads
Date Thu, 03 Mar 2016 17:08:18 GMT
Benedict created CASSANDRA-11301:
------------------------------------

             Summary: Non-obsoleting compaction operations over compressed files can impose
rate limit on normal reads
                 Key: CASSANDRA-11301
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11301
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Benedict
             Fix For: 2.2.6


Broken by CASSANDRA-9240; the rate limiting reader passes the ICompressedFile interface to
its parent, which uses this to attach an "owner" - which means the reader gets recycled on
close, i.e. pooled, for normal use. If the compaction were to replace the sstable there would
be no problem, which is presumably why this hasn't been encountered frequently. However validation
compactions on long lived sstables would permit these rate limited readers to accumulate.



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