[CASSANDRA-6489] ClassCastException when using EACH_QUORUM with SimpleStrategy

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Duplicate

Environment

Cassandra 2.0.3
Java Driver Core 2.0.0-rc2

• Assignee: Unassigned
• Reporter: DuyHai Doan
• Created: 15/Dec/13 11:37
• Updated: 16/Apr/19 09:31
• Resolved: 11/Mar/16 17:40

Description

When sending requests with EACH_QUORUM consistency and SimpleStrategy, the Java driver reports the following exception:

ERROR [11:38:36,075][] org.apache.cassandra.transport.messages.ErrorMessage@:fromException Unexpected exception during request
java.lang.ClassCastException: org.apache.cassandra.locator.SimpleStrategy cannot be cast to org.apache.cassandra.locator.NetworkTopologyStrategy
        at org.apache.cassandra.service.DatacenterSyncWriteResponseHandler.<init>(DatacenterSyncWriteResponseHandler.java:55)
        at org.apache.cassandra.locator.AbstractReplicationStrategy.getWriteResponseHandler(AbstractReplicationStrategy.java:132)
        at org.apache.cassandra.service.StorageProxy.performWrite(StorageProxy.java:731)
        at org.apache.cassandra.service.StorageProxy.mutate(StorageProxy.java:508)
        at org.apache.cassandra.service.StorageProxy.mutateWithTriggers(StorageProxy.java:578)
        at org.apache.cassandra.cql3.statements.BatchStatement.execute(BatchStatement.java:171)
        at org.apache.cassandra.cql3.statements.BatchStatement.executeWithPerStatementVariables(BatchStatement.java:165)
        at org.apache.cassandra.cql3.QueryProcessor.processBatch(QueryProcessor.java:369)
        at org.apache.cassandra.transport.messages.BatchMessage.execute(BatchMessage.java:207)
        at org.apache.cassandra.transport.Message$Dispatcher.messageReceived(Message.java:304)
        at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
        at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
        at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
        at org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43)
        at org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)

There should be proper error message instead of a ClassCastException. This is a minor issue though.

Issue Links

• duplicates: CASSANDRA-10584 reads with EACH_QUORUM on keyspace with SimpleTopologyStrategy throw a ClassCastException