Relish Chackochan created CASSANDRA-11658:
---------------------------------------------

             Summary: ava.lang.IllegalStateException: Unable to compute ceiling 
for max when histogram overflowed
                 Key: CASSANDRA-11658
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11658
             Project: Cassandra
          Issue Type: Bug
          Components: Compaction
         Environment: RHEL-6.5 64-bit, Cassandra 2.2.4
            Reporter: Relish Chackochan
            Priority: Minor


On our 8 node Cassandra cluster ( 2.2.4v ) i am seeing the below error on 
multiple nodes.



ERROR [CompactionExecutor:3] 2016-04-26 01:24:06,784 CassandraDaemon.java:185 - 
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(EstimatedHistogram.java:203) 
~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.io.sstable.metadata.StatsMetadata.getEstimatedDroppableTombstoneRatio(StatsMetadata.java:98)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.io.sstable.format.SSTableReader.getEstimatedDroppableTombstoneRatio(SSTableReader.java:1840)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.db.compaction.AbstractCompactionStrategy.worthDroppingTombstones(AbstractCompactionStrategy.java:372)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundSSTables(SizeTieredCompactionStrategy.java:96)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundTask(SizeTieredCompactionStrategy.java:180)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.db.compaction.WrappingCompactionStrategy.getNextBackgroundTask(WrappingCompactionStrategy.java:85)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:241)
 ~[apache-cassandra-2.2.4.jar:2.2.4]
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
~[na:1.8.0_65]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
~[na:1.8.0_65]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
~[na:1.8.0_65]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
[na:1.8.0_65]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]

. 



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