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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2013/10/25 16:48:37 UTC

[jira] [Updated] (CASSANDRA-6241) Assertion on MmappedSegmentedFile.floor doesn't tell us the path (filename)

     [ https://issues.apache.org/jira/browse/CASSANDRA-6241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-6241:
--------------------------------------

      Priority: Trivial  (was: Major)
    Issue Type: Improvement  (was: Bug)

> Assertion on MmappedSegmentedFile.floor doesn't tell us the path (filename)
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6241
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6241
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jackson Chung
>            Priority: Trivial
>             Fix For: 1.2.12, 2.0.3
>
>
> for whatever reason (hardware failure, excess load, etc), we get this:
> {panel}
> ERROR [MutationStage:10] 2013-10-25 08:54:03,150 AbstractCassandraDaemon.java (line 132) Exception in thread Thread[MutationStage:10,5,main]
> java.lang.AssertionError: 1711300 vs 974637
> 	at org.apache.cassandra.io.util.MmappedSegmentedFile.floor(MmappedSegmentedFile.java:62)
> 	at org.apache.cassandra.io.util.MmappedSegmentedFile.getSegment(MmappedSegmentedFile.java:77)
> 	at org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:900)
> 	at org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:63)
> 	at org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(NamesQueryFilter.java:61)
> 	at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:79)
> 	at org.apache.cassandra.db.CollationController.collectTimeOrderedData(CollationController.java:124)
> 	at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:64)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1362)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1224)
> 	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1154)
> 	at org.apache.cassandra.db.Table.readCurrentIndexedColumns(Table.java:514)
> 	at org.apache.cassandra.db.Table.apply(Table.java:452)
> 	at org.apache.cassandra.db.Table.apply(Table.java:384)
> 	at org.apache.cassandra.db.RowMutation.apply(RowMutation.java:294)
> 	at org.apache.cassandra.db.RowMutationVerbHandler.doVerb(RowMutationVerbHandler.java:51)
> 	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:59)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
> 	at java.lang.Thread.run(Thread.java:662)
> {panel}
> But the assertion error doesn't tell us the SSTable that is having the problem. So it doesn't really help us. I think we can simply append the assert error log msg with the this.path to show the filename of the problematic file.
> I would also suggest make "1711300 vs 974637" more clear...



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