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From: "Sylvain Lebresne (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (CASSANDRA-10254) 3.0 paging states are
 incompatible with pre-3.0 nodes
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     [ https://issues.apache.org/jira/browse/CASSANDRA-10254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sylvain Lebresne updated CASSANDRA-10254:
-----------------------------------------
    Fix Version/s: 3.0.0 rc1

> 3.0 paging states are incompatible with pre-3.0 nodes
> -----------------------------------------------------
>
>                 Key: CASSANDRA-10254
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10254
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Blake Eggleston
>             Fix For: 3.0.0 rc1
>
>
> When running the upgrade dtest {{TestCQL.static_columns_with_distinct_test}}, the client appears to be passing in an invalid paging state (no cell name). Instead of catching the problem in validation and returning an error to the client, the select statement tries to run it, causing this exception:
> {noformat}
> ERROR QueryMessage.java:135 - Unexpected error during query
> java.lang.ClassCastException: org.apache.cassandra.db.composites.Composites$EmptyComposite cannot be cast to org.apache.cassandra.db.composites.CellName
> 	at org.apache.cassandra.service.pager.SliceQueryPager.<init>(SliceQueryPager.java:64) ~[main/:na]
> 	at org.apache.cassandra.service.pager.MultiPartitionPager.makePager(MultiPartitionPager.java:93) ~[main/:na]
> 	at org.apache.cassandra.service.pager.MultiPartitionPager.<init>(MultiPartitionPager.java:75) ~[main/:na]
> 	at org.apache.cassandra.service.pager.QueryPagers.pager(QueryPagers.java:102) ~[main/:na]
> 	at org.apache.cassandra.service.pager.QueryPagers.pager(QueryPagers.java:126) ~[main/:na]
> 	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:228) ~[main/:na]
> 	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:67) ~[main/:na]
> 	at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:238) ~[main/:na]
> 	at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:260) ~[main/:na]
> 	at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:122) ~[main/:na]
> 	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439) [main/:na]
> 	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335) [main/:na]
> 	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.23.Final.jar:4.0.23.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [netty-all-4.0.23.Final.jar:4.0.23.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32) [netty-all-4.0.23.Final.jar:4.0.23.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324) [netty-all-4.0.23.Final.jar:4.0.23.Final]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_40]
> 	at org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164) [main/:na]
> 	at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [main/:na]
> 	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
> {noformat}
> Running {code} UPGRADE_MODE=none nosetests upgrade_tests/cql_tests.py:TestCQL.static_columns_with_distinct_test{code} should cause the error.



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