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Posted to commits@cassandra.apache.org by "Michael Bock (JIRA)" <ji...@apache.org> on 2013/06/18 17:05:20 UTC

[jira] [Created] (CASSANDRA-5656) NPE in SSTableNamesIterator

Michael Bock created CASSANDRA-5656:
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             Summary: NPE in SSTableNamesIterator
                 Key: CASSANDRA-5656
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5656
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 1.2.4
         Environment: SUSE Linux Enterprise Server 10, SP3. IBM Java 1.6.0 SR 13
            Reporter: Michael Bock


When adding a new node to our cluster we occasionally get the following error in the cassandra system log:

2013-06-18T07:13:18:942|ERROR|ReadStage:30|org.apache.cassandra.service.CassandraDaemon|Exception in thread Thread[ReadStage:30,5,main]
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.collectTimeOrderedData(CollationController.java:133)
        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.ReadVerbHandler.doVerb(ReadVerbHandler.java:44)
        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:56)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:908)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:931)
        at java.lang.Thread.run(Thread.java:738)

The same exception then occurs repeatedly every few milliseconds and the node is not working. Calls via the API are timing out.


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