Uploaded image for project: 'Cassandra'
  1. Cassandra
  2. CASSANDRA-15324

Unable to compute ceiling for max when histogram

    XMLWordPrintableJSON

    Details

    • Platform:
      All
    • Impacts:
      None

      Description

      I have 9 cassandra nodes. When I create a keyspace that has 15 tables and the record count of all table are about 8.2 billion. I imported data through my java loaders, and I found out the system.log has error message. What happened and how can I solve the error?

      Exception in thread Thread[CompactionExecutor:113041,1,main]
      java.lang.IllegalStateException: Unable to compute ceiling for max when histogram overflowed
      at org.apache.cassandra.utils.EstimatedHistogram.rawMean(EstimatedHistogram.java:231) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.utils.EstimatedHistogram.mean(EstimatedHistogram.java:220) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.io.sstable.metadata.StatsMetadata.getEstimatedDroppableTombstoneRatio(StatsMetadata.java:115) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.io.sstable.format.SSTableReader.getEstimatedDroppableTombstoneRatio(SSTableReader.java:1926) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.worthDroppingTombstones(AbstractCompactionStrategy.java:424) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundSSTables(SizeTieredCompactionStrategy.java:99) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundTask(SizeTieredCompactionStrategy.java:183) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.db.compaction.CompactionStrategyManager.getNextBackgroundTask(CompactionStrategyManager.java:153) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:260) ~[apache-cassandra-3.11.4.jar:3.11.4]
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_191]
      at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_191]
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_191]
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
      at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) [apache-cassandra-3.11.4.jar:3.11.4]
      at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_191]

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              mlhsu HsuML
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: