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Posted to user@cassandra.apache.org by Donal Zang <za...@ihep.ac.cn> on 2011/04/03 21:32:09 UTC

NullPointerException with 0.7.4

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.zang@cern.ch
+41 22 76 71268

Re: NullPointerException with 0.7.4

Posted by aaron morton <aa...@thelastpickle.com>.
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.zang@cern.ch
> +41 22 76 71268
> 
> 
>