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From "Wei Deng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-12388) For LeveledCompactionStrategy, provide a JMX interface to trigger printing out LeveledManifest
Date Fri, 05 Aug 2016 08:31:20 GMT
Wei Deng created CASSANDRA-12388:
------------------------------------

             Summary: For LeveledCompactionStrategy, provide a JMX interface to trigger printing
out LeveledManifest
                 Key: CASSANDRA-12388
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12388
             Project: Cassandra
          Issue Type: Improvement
          Components: Compaction
            Reporter: Wei Deng
            Priority: Minor


It appears that we have a private toString() method in LeveledManifest, but it's only used
from within the class, even though it has capability of printing all SSTables on all levels.
We used to be able to get this information from the manifest file in data directory, but after
CASSANDRA-4872 this is no longer available. It will be useful for troubleshooting if we can
have a JMX MBean method to trigger printing out the full generations list of a particular
manifest instance.



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