http://wiki.apache.org/cassandra/FAQ#slows_down_after_lotso_inserts
On Mon, Apr 19, 2010 at 8:22 PM, Ken Sandney <bluefl...@gmail.com> wrote: > Hi > I am doing a insert test with 9 nodes, the command: >> >> stress.py -n 1000000000 -t 1000 -c 10 -o insert -i 5 -d >> 10.0.0.1,10.0.0.2..... > > and 5 of the 9 nodes were cashed, only about 6'500'000 rows were inserted > I checked out the system.log and seems the reason are 'out of memory'. I > don't if this had something to do with my settings. > Any idea about this? > Thank you, and the following are the errors from system.log > >> >> ERROR [CACHETABLE-TIMER-1] 2010-04-19 20:43:14,013 CassandraDaemon.java >> (line 78) Fatal exception in thread Thread[CACHETABLE-TIMER-1,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> at >> org.apache.cassandra.utils.ExpiringMap$CacheMonitor.run(ExpiringMap.java:76) >> >> at java.util.TimerThread.mainLoop(Timer.java:512) >> >> at java.util.TimerThread.run(Timer.java:462) >> >> ERROR [ROW-MUTATION-STAGE:9] 2010-04-19 20:43:27,932 CassandraDaemon.java >> (line 78) Fatal exception in thread Thread[ROW-MUTATION-STAGE:9,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> at >> java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:893) >> >> at >> java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1893) >> >> at >> org.apache.cassandra.db.ColumnFamily.addColumn(ColumnFamily.java:192) >> >> at >> org.apache.cassandra.db.ColumnFamilySerializer.deserializeColumns(ColumnFamilySerializer.java:118) >> >> at >> org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:108) >> >> at >> org.apache.cassandra.db.RowMutationSerializer.defreezeTheMaps(RowMutation.java:359) >> >> at >> org.apache.cassandra.db.RowMutationSerializer.deserialize(RowMutation.java:369) >> >> at >> org.apache.cassandra.db.RowMutationSerializer.deserialize(RowMutation.java:322) >> >> at >> org.apache.cassandra.db.RowMutationVerbHandler.doVerb(RowMutationVerbHandler.java:45) >> >> at >> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) >> >> at java.lang.Thread.run(Thread.java:619) > > and another >> >> INFO [GC inspection] 2010-04-19 21:13:09,034 GCInspector.java (line 110) >> GC for ConcurrentMarkSweep: 2016 ms, 1239096 reclaimed leaving 1094238944 >> used; max is 1211826176 >> >> ERROR [Thread-14] 2010-04-19 21:23:18,508 CassandraDaemon.java (line 78) >> Fatal exception in thread Thread[Thread-14,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> at sun.nio.ch.Util.releaseTemporaryDirectBuffer(Util.java:67) >> >> at sun.nio.ch.IOUtil.read(IOUtil.java:212) >> >> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236) >> >> at >> sun.nio.ch.SocketAdaptor$SocketInputStream.read(SocketAdaptor.java:176) >> >> at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:86) >> >> at java.io.InputStream.read(InputStream.java:85) >> >> at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:64) >> >> at java.io.DataInputStream.readInt(DataInputStream.java:370) >> >> at >> org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:70) >> >> ERROR [COMPACTION-POOL:1] 2010-04-19 21:23:18,514 >> DebuggableThreadPoolExecutor.java (line 94) Error in executor futuretask >> >> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java >> heap space >> >> at >> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) >> >> at java.util.concurrent.FutureTask.get(FutureTask.java:83) >> >> at >> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86) >> >> at >> org.apache.cassandra.db.CompactionManager$CompactionExecutor.afterExecute(CompactionManager.java:582) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) >> >> at java.lang.Thread.run(Thread.java:619) >> >> Caused by: java.lang.OutOfMemoryError: Java heap space >> >> INFO [FLUSH-WRITER-POOL:1] 2010-04-19 21:23:25,600 Memtable.java (line >> 162) Completed flushing /m/cassandra/data/Keyspace1/Standard1-623-Data.db >> >> ERROR [Thread-13] 2010-04-19 21:23:18,514 CassandraDaemon.java (line 78) >> Fatal exception in thread Thread[Thread-13,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> ERROR [Thread-15] 2010-04-19 21:23:18,514 CassandraDaemon.java (line 78) >> Fatal exception in thread Thread[Thread-15,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> ERROR [CACHETABLE-TIMER-1] 2010-04-19 21:23:18,514 CassandraDaemon.java >> (line 78) Fatal exception in thread Thread[CACHETABLE-TIMER-1,5,main] >> >> java.lang.OutOfMemoryError: Java heap space > > > and >> >> INFO 21:00:31,319 GC for ConcurrentMarkSweep: 1417 ms, 206216 reclaimed >> leaving 1094527752 used; max is 1211826176 >> >> java.lang.OutOfMemoryError: Java heap space >> >> Dumping heap to java_pid28670.hprof ... >> >> INFO 21:01:23,882 GC for ConcurrentMarkSweep: 2100 ms, 734008 reclaimed >> leaving 1093996648 used; max is 1211826176 >> >> Heap dump file created [1095841554 bytes in 12.960 secs] >> >> INFO 21:01:45,082 GC for ConcurrentMarkSweep: 2089 ms, 769968 reclaimed >> leaving 1093960776 used; max is 1211826176 >> >> ERROR 21:01:49,559 Fatal exception in thread Thread[Hint delivery,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> at java.util.Arrays.copyOf(Arrays.java:2772) >> >> at java.util.Arrays.copyOf(Arrays.java:2746) >> >> at java.util.ArrayList.ensureCapacity(ArrayList.java:187) >> >> at java.util.ArrayList.add(ArrayList.java:378) >> >> at >> java.util.concurrent.ConcurrentSkipListMap.toList(ConcurrentSkipListMap.java:2341) >> >> at >> java.util.concurrent.ConcurrentSkipListMap$Values.toArray(ConcurrentSkipListMap.java:2445) >> >> at >> org.apache.cassandra.db.Memtable.getSliceIterator(Memtable.java:207) >> >> at >> org.apache.cassandra.db.filter.SliceQueryFilter.getMemColumnIterator(SliceQueryFilter.java:58) >> >> at >> org.apache.cassandra.db.filter.QueryFilter.getMemColumnIterator(QueryFilter.java:53) >> >> at >> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:816) >> >> at >> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:750) >> >> at >> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:719) >> >> at >> org.apache.cassandra.db.HintedHandOffManager.deliverAllHints(HintedHandOffManager.java:175) >> >> at >> org.apache.cassandra.db.HintedHandOffManager.access$000(HintedHandOffManager.java:80) >> >> at >> org.apache.cassandra.db.HintedHandOffManager$1.runMayThrow(HintedHandOffManager.java:100) >> >> at >> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) >> >> at java.lang.Thread.run(Thread.java:636) >> >> INFO 21:01:56,123 GC for ConcurrentMarkSweep: 2115 ms, 893240 reclaimed >> leaving 1093862712 used; max is 1211826176 > > and >> >> ERROR [Hint delivery] 2010-04-19 21:57:07,089 CassandraDaemon.java (line >> 78) Fatal exception in thread Thread[Hint delivery,5,main] >> >> java.lang.RuntimeException: java.lang.RuntimeException: >> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java >> heap space >> >> at >> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34) >> >> at java.lang.Thread.run(Thread.java:636) >> >> Caused by: java.lang.RuntimeException: >> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java >> heap space >> >> at >> org.apache.cassandra.db.HintedHandOffManager.deliverAllHints(HintedHandOffManager.java:209) >> >> at >> org.apache.cassandra.db.HintedHandOffManager.access$000(HintedHandOffManager.java:80) >> >> at >> org.apache.cassandra.db.HintedHandOffManager$1.runMayThrow(HintedHandOffManager.java:100) >> >> at >> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) >> >> ... 1 more >> >> Caused by: java.util.concurrent.ExecutionException: >> java.lang.OutOfMemoryError: Java heap space >> >> at >> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) >> >> at java.util.concurrent.FutureTask.get(FutureTask.java:111) >> >> at >> org.apache.cassandra.db.HintedHandOffManager.deliverAllHints(HintedHandOffManager.java:205) >> >> ... 4 more >> >> Caused by: java.lang.OutOfMemoryError: Java heap space >> >> ERROR [MESSAGE-DESERIALIZER-POOL:1] 2010-04-19 21:57:07,089 >> DebuggableThreadPoolExecutor.java (line 94) Error in executor futuretask >> >> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java >> heap space >> >> at >> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) >> >> at java.util.concurrent.FutureTask.get(FutureTask.java:111) >> >> at >> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86) >> >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) >> >> at java.lang.Thread.run(Thread.java:636) >> >> Caused by: java.lang.OutOfMemoryError: Java heap space >> >> ERROR [COMPACTION-POOL:1] 2010-04-19 21:57:07,089 >> DebuggableThreadPoolExecutor.java (line 94) Error in executor futuretask >> >> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java >> heap space >> >> at >> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) >> >> at java.util.concurrent.FutureTask.get(FutureTask.java:111) >> >> at >> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86) >> >> at >> org.apache.cassandra.db.CompactionManager$CompactionExecutor.afterExecute(CompactionManager.java:582) >> >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118) >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) >> >> at java.lang.Thread.run(Thread.java:636) >> >> Caused by: java.lang.OutOfMemoryError: Java heap space >> >> ERROR [CACHETABLE-TIMER-1] 2010-04-19 21:56:29,572 CassandraDaemon.java >> (line 78) Fatal exception in thread Thread[CACHETABLE-TIMER-1,5,main] >> >> java.lang.OutOfMemoryError: Java heap space >> >> at java.util.HashMap.<init>(HashMap.java:226) at >> org.apache.cassandra.utils.ExpiringMap$CacheMonitor.run(ExpiringMap.java:76) >> at java.util.TimerThread.mainLoop(Timer.java:534) at >> java.util.TimerThread.run(Timer.java:484) > >
