[CASSANDRA-8108] Errors paging DISTINCT queries on static columns

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.0.11, 2.1.1

Environment

Cassandra 2.1.0
Datastax AMI on EC2 (Ubuntu Linux)

• Severity: Normal
• Assignee: Tom Hobbs
• Reporter: David Hearnden

Authors

Tom Hobbs

Reviewers

Sylvain Lebresne

• Created: 13/Oct/14 04:00
• Updated: 16/Apr/19 09:31
• Resolved: 16/Oct/14 16:13

Description

java.lang.ClassCastException: org.apache.cassandra.db.composites.Composites$EmptyComposite cannot be cast to org.apache.cassandra.db.composites.CellName
	at org.apache.cassandra.db.composites.AbstractCellNameType.cellFromByteBuffer(AbstractCellNameType.java:170) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.service.pager.SliceQueryPager.<init>(SliceQueryPager.java:57) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.service.pager.MultiPartitionPager.makePager(MultiPartitionPager.java:84) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.service.pager.MultiPartitionPager.<init>(MultiPartitionPager.java:68) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.service.pager.QueryPagers.pager(QueryPagers.java:101) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.service.pager.QueryPagers.pager(QueryPagers.java:125) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:215) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:60) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:187) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.cql3.QueryProcessor.processPrepared(QueryProcessor.java:413) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.transport.messages.ExecuteMessage.execute(ExecuteMessage.java:133) ~[apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:422) [apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:318) [apache-cassandra-2.1.0.jar:2.1.0]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:103) [netty-all-4.0.20.Final.jar:4.0.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:332) [netty-all-4.0.20.Final.jar:4.0.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:31) [netty-all-4.0.20.Final.jar:4.0.20.Final]
	at io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:323) [netty-all-4.0.20.Final.jar:4.0.20.Final]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_51]
	at org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:163) [apache-cassandra-2.1.0.jar:2.1.0]
	at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:103) [apache-cassandra-2.1.0.jar:2.1.0]
	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]

Issue Links

• is duplicated by: CASSANDRA-8087 Multiple non-DISTINCT rows returned when page_size set