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From "Navjyot Nishant (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-11063) Unable to compute ceiling for max when histogram overflowed
Date Sat, 23 Jan 2016 13:50:39 GMT
Navjyot Nishant created CASSANDRA-11063:

             Summary: Unable to compute ceiling for max when histogram overflowed
                 Key: CASSANDRA-11063
             Project: Cassandra
          Issue Type: Bug
          Components: Compaction
         Environment: Cassandra 2.1.9 on RHEL
            Reporter: Navjyot Nishant

Issue seems related with error we are
getting. But we are getting this with Cassandra 2.1.9 when autocompaction is running it keeps
throwing following errors, we are unsure if its a bug or can be resolved, please suggest.

ERROR [CompactionExecutor:3] 2016-01-23 11:52:50,197 - Exception
in thread Thread[CompactionExecutor:3,1,main]
java.lang.IllegalStateException: Unable to compute ceiling for max when histogram overflowed
        at org.apache.cassandra.utils.EstimatedHistogram.mean(
        at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.worthDroppingTombstones(
        at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundSSTables(
        at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundTask(
        at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.getNextBackgroundTask(
        at org.apache.cassandra.db.compaction.CompactionManager$
        at java.util.concurrent.Executors$ ~[na:1.7.0_51]
        at ~[na:1.7.0_51]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(
        at java.util.concurrent.ThreadPoolExecutor$
        at [na:1.7.0_51]

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