See also: http://www.datastax.com/docs/0.7/troubleshooting/index#nodes-are-dying-with-oom-errors
On 03/04/2011 03:05 PM, Chris Burroughs wrote: > - Does this occur only during compaction or at seemingly random times? > - How large is your heap? What jvm settings are you using? How much > physical RAM do you have? > - Do you have the row and/or key cache enabled? How are they > configured? How large are they when the OOM is thrown? > > On 03/04/2011 02:38 PM, Mark Miller wrote: >> Other than adding more memory to the machine is there a way to solve >> this? Please help. Thanks >> >> ERROR [COMPACTION-POOL:1] 2011-03-04 11:11:44,891 CassandraDaemon.java >> (line org.apache.cassandra.thrift.CassandraDaemon$1) Uncaught exception >> in thread Thread[COMPACTION-POOL:1,5,main] >> java.lang.OutOfMemoryError: Java heap space >> at java.util.Arrays.copyOf(Arrays.java:2798) >> at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:111) >> at java.io.DataOutputStream.write(DataOutputStream.java:107) >> at java.io.FilterOutputStream.write(FilterOutputStream.java:97) >> at >> org.apache.cassandra.utils.FBUtilities.writeByteArray(FBUtilities.java:298) >> at >> org.apache.cassandra.db.ColumnSerializer.serialize(ColumnSerializer.java:66) >> >> at >> org.apache.cassandra.db.SuperColumnSerializer.serialize(SuperColumn.java:311) >> >> at >> org.apache.cassandra.db.SuperColumnSerializer.serialize(SuperColumn.java:284) >> >> at >> org.apache.cassandra.db.ColumnFamilySerializer.serializeForSSTable(ColumnFamilySerializer.java:87) >> >> at >> org.apache.cassandra.db.ColumnFamilySerializer.serializeWithIndexes(ColumnFamilySerializer.java:99) >> >> at >> org.apache.cassandra.io.CompactionIterator.getReduced(CompactionIterator.java:140) >> >> at >> org.apache.cassandra.io.CompactionIterator.getReduced(CompactionIterator.java:43) >> >> at >> org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:73) >> >> at >> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:135) >> >> at >> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:130) >> >> at >> org.apache.commons.collections.iterators.FilterIterator.setNextObject(FilterIterator.java:183) >> >> at >> org.apache.commons.collections.iterators.FilterIterator.hasNext(FilterIterator.java:94) >> >> at >> org.apache.cassandra.db.CompactionManager.doCompaction(CompactionManager.java:294) >> >> at >> org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:101) >> >> at >> org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:82) >> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) >> at java.util.concurrent.FutureTask.run(FutureTask.java:166) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) >> >> at java.lang.Thread.run(Thread.java:636) >> >
