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From "Alex Petrov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11672) Upgradesstables errors with "CompoundComposite cannot be cast to org.apache.cassandra.db.composites.CellName"
Date Mon, 07 Nov 2016 12:54:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15644106#comment-15644106
] 

Alex Petrov commented on CASSANDRA-11672:
-----------------------------------------

I've tried reproducing it without success (upgrading 1.2.x -> 2.0.9 -> 2.1.16). 

I was not able to track it down to the particular commit that fixes the issue. It also may
as well have been in completely different code path from the stack trace.

> Upgradesstables errors with "CompoundComposite cannot be cast to org.apache.cassandra.db.composites.CellName"

> --------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-11672
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11672
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Simon Ashley
>            Assignee: Alex Petrov
>
> Upgradesstables in C* 2.1 fails on thrift tables originally created on C*1.2 with the
following error:
> {code}
> $ nodetool upgradesstables -a
> error: org.apache.cassandra.db.composites.CompoundComposite cannot be cast to org.apache.cassandra.db.composites.CellName
> -- StackTrace --
> 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)
> 	at org.apache.cassandra.db.AbstractCell$1.computeNext(AbstractCell.java:52)
> 	at org.apache.cassandra.db.AbstractCell$1.computeNext(AbstractCell.java:46)
> 	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> 	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> 	at org.apache.cassandra.io.sstable.SSTableIdentityIterator.hasNext(SSTableIdentityIterator.java:171)
> 	at org.apache.cassandra.utils.MergeIterator$OneToOne.computeNext(MergeIterator.java:202)
> 	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> 	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> 	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:645)
> 	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> 	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> 	at org.apache.cassandra.db.ColumnIndex$Builder.buildForCompaction(ColumnIndex.java:166)
> 	at org.apache.cassandra.db.compaction.LazilyCompactedRow.write(LazilyCompactedRow.java:121)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:193)
> 	at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:126)
> 	at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:197)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> 	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:73)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
> 	at org.apache.cassandra.db.compaction.CompactionManager$4.execute(CompactionManager.java:376)
> 	at org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:304)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> {code}
> This problem is not seen if the thrift table was originally created in C* 2.0.x
> The suspicion is that this is related to the use of a CompositeType comparator. 
> The following schema is an example of a cf that will cause this issue.
> {code}
> create column family cf1
>   with column_type = 'Standard'
>   and comparator = 'CompositeType(org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.DateType),org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.AsciiType)'
>   and default_validation_class = 'UTF8Type'
>   and key_validation_class = 'CompositeType(org.apache.cassandra.db.marshal.LongType,org.apache.cassandra.db.marshal.IntegerType)'
>   and read_repair_chance = 1.0
>   and dclocal_read_repair_chance = 0.0
>   and populate_io_cache_on_flush = false
>   and gc_grace = 259200
>   and min_compaction_threshold = 4
>   and max_compaction_threshold = 32
>   and replicate_on_write = true
>   and compaction_strategy = 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
>   and caching = 'KEYS_ONLY'
>   and compression_options = {'sstable_compression' : 'org.apache.cassandra.io.compress.SnappyCompressor',
'chunk_length_kb' : '64'};
> {code}
> You can workaround this via the creation of a dummy table and update of schema_columnfamilies
for each cf affected. The dummy cf can be deleted afterwards.
> cassandra-cli
> [default@unknown] use ks1;
> [default@ks1] create column family foo;
> [default@ks1] use system;
> [default@system] set schema_columnfamilies['ks1']['cf1:is_dense']=01;
> [default@system] use ks1;
> [default@ks1] update column family foo with comment='';



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