[ 
https://issues.apache.org/jira/browse/CASSANDRA-12694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16093747#comment-16093747
 ] 

Jeff Jirsa commented on CASSANDRA-12694:
----------------------------------------

It appears to be 
[here|https://github.com/apache/cassandra/commit/1e067746e432dc0a450ad111a8ec545011bb5bc7]
 , which seems to be 3.0.10, 3.10, 3.11.0

It's still missing the CHANGES, and the JIRA is typo'd in it, but it appears to 
be in 3.10

If you're still seeing it in 3.10, can you please paste the full stack trace? 




> PAXOS Update Corrupted empty row exception
> ------------------------------------------
>
>                 Key: CASSANDRA-12694
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12694
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local Write-Read Paths
>         Environment: 3 node cluster using RF=3 running on cassandra 3.7
>            Reporter: Cameron Zemek
>            Assignee: Alex Petrov
>             Fix For: 3.0.11, 3.10
>
>
> {noformat}
> cqlsh> create table test.test (test_id TEXT, last_updated TIMESTAMP, 
> message_id TEXT, PRIMARY KEY(test_id));
> update test.test set last_updated = 1474494363669 where test_id = 'test1' if 
> message_id = null;
> {noformat}
> Then nodetool flush on the all 3 nodes.
> {noformat}
> cqlsh> update test.test set last_updated = 1474494363669 where test_id = 
> 'test1' if message_id = null;
> ServerError: <ErrorMessage code=0000 [Server error] message="java.io.IOError: 
> java.io.IOException: Corrupt empty row found in unfiltered partition">
> {noformat}
> From cassandra log
> {noformat}
> ERROR [SharedPool-Worker-1] 2016-09-23 12:09:13,179 Message.java:611 - 
> Unexpected exception during request; channel = [id: 0x7a22599e, 
> L:/127.0.0.1:9042 - R:/127.0.0.1:58297]
> java.io.IOError: java.io.IOException: Corrupt empty row found in unfiltered 
> partition
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer$1.computeNext(UnfilteredRowIteratorSerializer.java:224)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer$1.computeNext(UnfilteredRowIteratorSerializer.java:212)
>  ~[main/:na]
>         at 
> org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
> ~[main/:na]
>         at 
> org.apache.cassandra.db.rows.UnfilteredRowIterators.digest(UnfilteredRowIterators.java:125)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.partitions.UnfilteredPartitionIterators.digest(UnfilteredPartitionIterators.java:249)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.ReadResponse.makeDigest(ReadResponse.java:87) 
> ~[main/:na]
>         at 
> org.apache.cassandra.db.ReadResponse$DataResponse.digest(ReadResponse.java:192)
>  ~[main/:na]
>         at 
> org.apache.cassandra.service.DigestResolver.resolve(DigestResolver.java:80) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.ReadCallback.get(ReadCallback.java:139) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.AbstractReadExecutor.get(AbstractReadExecutor.java:145)
>  ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy$SinglePartitionReadLifecycle.awaitResultsAndRetryOnDigestMismatch(StorageProxy.java:1714)
>  ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.fetchRows(StorageProxy.java:1663) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.readRegular(StorageProxy.java:1604) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.read(StorageProxy.java:1523) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.readOne(StorageProxy.java:1497) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.readOne(StorageProxy.java:1491) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.StorageProxy.cas(StorageProxy.java:249) 
> ~[main/:na]
>         at 
> org.apache.cassandra.cql3.statements.ModificationStatement.executeWithCondition(ModificationStatement.java:441)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.statements.ModificationStatement.execute(ModificationStatement.java:416)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:208)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:239) 
> ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:224) 
> ~[main/:na]
>         at 
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:115)
>  ~[main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
>  [main/:na]
> {noformat}



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