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https://issues.apache.org/jira/browse/CASSANDRA-6738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918174#comment-13918174
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Sylvain Lebresne commented on CASSANDRA-6738:
---------------------------------------------
Slightly confused about those sstables. First because all of them (even the
ones in the "snapshot" subdir) are on version jb, i.e. are already 2.1 sstables
that don't need upgrading. But more importantly because those sstables have
pretty clearly broken data (at least for the schema definition above). Mainly,
there is a weird entry that do not correspond to the schema and in particular
don't have the proper number of components in the cell name (which might be
what trigger the exception above though I haven't been able to reproduce that
one exactly, I do get other type of errors though since the sstable is clearly
broken) which should never happen in a CQL3 table. It also doesn't appear that
the cells are properly sorted in the sstable, suggesting something is really
really wrong with the sstable.
> java.lang.ClassCastException:
> org.apache.cassandra.db.composites.CompoundComposite cannot be cast to
> org.apache.cassandra.db.composites.CellName
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6738
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6738
> Project: Cassandra
> Issue Type: Bug
> Reporter: Mateusz Gajewski
> Assignee: Sylvain Lebresne
> Fix For: 2.1 beta2
>
> Attachments: 6738.txt, user_attribs.tar.gz
>
>
> When using nodetool upgradesstables (2.0.4 -> 2.1-beta) class cast exception
> occurs:
> ERROR [CompactionExecutor:7] 2014-02-19 21:34:16,839 CassandraDaemon.java:165
> - Exception in thread Thread[CompactionExecutor:7,1,main]
> java.lang.ClassCastException:
> org.apache.cassandra.db.composites.CompoundComposite cannot be cast to
> org.apache.cassandra.db.composites.CellName
> at
> org.apache.cassandra.db.OnDiskAtom$Serializer.deserializeFromSSTable(OnDiskAtom.java:86)
> ~[main/:na]
> at org.apache.cassandra.db.Cell$1.computeNext(Cell.java:75) ~[main/:na]
> at org.apache.cassandra.db.Cell$1.computeNext(Cell.java:64) ~[main/:na]
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> ~[guava-16.0.jar:na]
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> ~[guava-16.0.jar:na]
> at
> org.apache.cassandra.io.sstable.SSTableIdentityIterator.hasNext(SSTableIdentityIterator.java:129)
> ~[main/:na]
> at
> org.apache.cassandra.utils.MergeIterator$OneToOne.computeNext(MergeIterator.java:200)
> ~[main/:na]
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> ~[guava-16.0.jar:na]
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> ~[guava-16.0.jar:na]
> at
> com.google.common.collect.Iterators$7.computeNext(Iterators.java:645)
> ~[guava-16.0.jar:na]
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> ~[guava-16.0.jar:na]
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> ~[guava-16.0.jar:na]
> at
> org.apache.cassandra.db.ColumnIndex$Builder.buildForCompaction(ColumnIndex.java:165)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.LazilyCompactedRow.write(LazilyCompactedRow.java:110)
> ~[main/:na]
> at
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:178)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:172)
> ~[main/:na]
> at
> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
> ~[main/:na]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:67)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:64)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.CompactionManager$4.perform(CompactionManager.java:262)
> ~[main/:na]
> at
> org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:227)
> ~[main/:na]
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> ~[na:1.7.0_45]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> ~[na:1.7.0_45]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
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