Was this using one of the included stress tests or your own system ? If it was something from contrib/ what was the command line you used?
If you own system what was the schema and what was the tests doing ? If it's reproducible could you create a ticket here https://issues.apache.org/jira/browse/CASSANDRA Thanks Aaron On 4 Apr 2011, at 05:32, Donal Zang wrote: > Hi, > > I'm doing a stress test, and cassandra crashed with this Exception: > ERROR [MutationStage:9] 2011-04-03 21:11:50,152 > DebuggableThreadPoolExecutor.java (line 103) Error in ThreadPoolExecutor > java.lang.NullPointerException > at > org.apache.cassandra.io.sstable.IndexSummary$KeyPosition.compareTo(IndexSummary.java:100) > at > org.apache.cassandra.io.sstable.IndexSummary$KeyPosition.compareTo(IndexSummary.java:87) > at java.util.Collections.indexedBinarySearch(Collections.java:232) > at java.util.Collections.binarySearch(Collections.java:218) > at > org.apache.cassandra.io.sstable.SSTableReader.getIndexScanPosition(SSTableReader.java:333) > at > org.apache.cassandra.io.sstable.SSTableReader.getPosition(SSTableReader.java:459) > at > org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:563) > at > org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:61) > at > org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(NamesQueryFilter.java:58) > at > org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:80) > at > org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1353) > at > org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1245) > at > org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1173) > at > org.apache.cassandra.db.Table.readCurrentIndexedColumns(Table.java:459) > at org.apache.cassandra.db.Table.apply(Table.java:394) > at > org.apache.cassandra.db.RowMutationVerbHandler.doVerb(RowMutationVerbHandler.java:76) > at > org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:72) > 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) > > -- > > Donal Zang > CERN PH-ADP-DDM 40-3-D16 > CH-1211 Geneve 23 > donal.z...@cern.ch > +41 22 76 71268 > > >
