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Nikolai Grigoriev commented on CASSANDRA-8210: ---------------------------------------------- Opened new ticket as per [~jbellis]'s recommendation in response to my comment to CASSANDRA-5256 > "java.lang.AssertionError: Memory was freed" exception in CompactionExecutor > ---------------------------------------------------------------------------- > > Key: CASSANDRA-8210 > URL: https://issues.apache.org/jira/browse/CASSANDRA-8210 > Project: Cassandra > Issue Type: Bug > Components: Core > Environment: DSE 4.5.2, Cassandra 2.0.10, OEL 6.5, kernel > 3.8.13-44.el6uek.x86_64, 128Gb of RAM, swap disabled, JRE 1.7.0_67-b01 > Reporter: Nikolai Grigoriev > Priority: Minor > Attachments: cassandra-env.sh, cassandra.yaml, occurence > frequency.png, system.log.gz > > > I have just got this problem on multiple nodes. Cassandra 2.0.10 (DSE 4.5.2). > After looking through the history I have found that it was actually happening > on all nodes since the start of large compaction process (I've loaded tons of > data in the system and then turned off all load to let it compact the data). > {code} > ERROR [CompactionExecutor:1196] 2014-10-28 17:14:50,124 CassandraDaemon.java > (line 199) Exception in thread Thread[CompactionExecutor:1196,1,main] > java.lang.AssertionError: Memory was freed > at org.apache.cassandra.io.util.Memory.checkPosition(Memory.java:259) > at org.apache.cassandra.io.util.Memory.getInt(Memory.java:211) > at > org.apache.cassandra.io.sstable.IndexSummary.getIndex(IndexSummary.java:79) > at > org.apache.cassandra.io.sstable.IndexSummary.getKey(IndexSummary.java:84) > at > org.apache.cassandra.io.sstable.IndexSummary.binarySearch(IndexSummary.java:58) > at > org.apache.cassandra.io.sstable.SSTableReader.getSampleIndexesForRanges(SSTableReader.java:692) > at > org.apache.cassandra.io.sstable.SSTableReader.estimatedKeysForRanges(SSTableReader.java:663) > at > org.apache.cassandra.db.compaction.AbstractCompactionStrategy.worthDroppingTombstones(AbstractCompactionStrategy.java:328) > at > org.apache.cassandra.db.compaction.LeveledCompactionStrategy.findDroppableSSTable(LeveledCompactionStrategy.java:354) > at > org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getMaximalTask(LeveledCompactionStrategy.java:125) > at > org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getNextBackgroundTask(LeveledCompactionStrategy.java:113) > at > org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:192) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)