Sanjay created CASSANDRA-5673: --------------------------------- Summary: NullPointerException on running instances Key: CASSANDRA-5673 URL: https://issues.apache.org/jira/browse/CASSANDRA-5673 Project: Cassandra Issue Type: Bug Components: Core Affects Versions: 1.2.4 Reporter: Sanjay
Hallo, We are having sporadic NullPointerException in some of the cassandra nodes in cluster (See stacktrace). We are having two Datacenter, each having 15 nodes with RF = 2, OS is SLES with java-1_6_0-ibm-1.6.0_sr12.0-0.5.1. At present only workaround is to stop the application running on same node and run repair tool on cassandra. We are unable to identify the cause of error. INFO|ScheduledTasks:1|org.apache.cassandra.service.GCInspector|GC for MarkSweepCompact: 347 ms for 1 collections, 138398568 used; ma x is 1051721728 2013-06-19T16:25:50:843|ERROR|ReplicateOnWriteStage:115|org.apache.cassandra.service.CassandraDaemon|Exception in thread Thread[ReplicateOnWriteStage:115,5,m ain] java.lang.RuntimeException: java.lang.NullPointerException at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1582) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919) at java.lang.Thread.run(Thread.java:738) Caused by: java.lang.NullPointerException at java.util.TreeSet.iterator(TreeSet.java:230) at org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableNamesIterator.java:163) at org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:64) at org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(NamesQueryFilter.java:81) at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:68) at org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:274) at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:65) at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1357) at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1214) at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1126) at org.apache.cassandra.db.Table.getRow(Table.java:347) at org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadCommand.java:64) at org.apache.cassandra.db.CounterMutation.makeReplicationMutation(CounterMutation.java:90) at org.apache.cassandra.service.StorageProxy$7$1.runMayThrow(StorageProxy.java:796) at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1578) ... 3 more 2013-06-19T16:26:01:001|ERROR|ReadStage:4833|org.apache.cassandra.service.CassandraDaemon|Exception in thread Thread[ReadStage:4833,5,main] java.lang.RuntimeException: java.lang.NullPointerException at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1582) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919) at java.lang.Thread.run(Thread.java:738) Caused by: java.lang.NullPointerException at java.util.TreeSet.iterator(TreeSet.java:230) at org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableNamesIterator.java:163) at org. Best Regards Sanjay -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira