Nikolai Grigoriev created CASSANDRA-8210:
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Summary: "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
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}
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