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