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Date: Wed, 14 Dec 2011 08:34:31 +0000 (UTC)
From: "Evgeny Ryabitskiy (Created) (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Created] (CASSANDRA-3630) Timeout exception while
 IndexSearch on not valid column values
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Timeout exception while IndexSearch on not valid column values
--------------------------------------------------------------

                 Key: CASSANDRA-3630
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3630
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.7.0
            Reporter: Evgeny Ryabitskiy
             Fix For: 1.0.6


While index_scan it is possible that column value is not valid. For example if it is a DynamicCompositeType there can be stored LongType and search is using DecimalType. In result cassandra has following behavior:
1) Cassandra server logs Fatal exception and stops MessageDeliveryTask execution without any response to client
2) Client wait response until timeout, at result application fails with TimeoutException

I think this behavior is incorrect, and client should get reply about search request failure.

Logs on server side:
{quote}
14:37:57.924 [ReadStage:2] ERROR o.a.c.s.AbstractCassandraDaemon - Fatal exception in thread Thread[ReadStage:2,5,main]
java.lang.RuntimeException: java.lang.RuntimeException: Comparator mismatch while comparing two DynamicCompositeType colum name
	at org.apache.cassandra.service.IndexScanVerbHandler.doVerb(IndexScanVerbHandler.java:51) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:59) ~[cassandra-all-1.0.3.jar:1.0.3]
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_26]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_26]
	at java.lang.Thread.run(Thread.java:662) [na:1.6.0_26]
Caused by: java.lang.RuntimeException: Comparator mismatch while comparing two DynamicCompositeType colum name
	at org.apache.cassandra.db.marshal.DynamicCompositeType.getNextComparator(DynamicCompositeType.java:124) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.db.marshal.AbstractCompositeType.compare(AbstractCompositeType.java:80) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.db.marshal.AbstractCompositeType.compare(AbstractCompositeType.java:37) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.db.index.SecondaryIndexSearcher.satisfies(SecondaryIndexSearcher.java:54) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.db.index.keys.KeysSearcher.search(KeysSearcher.java:230) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.db.index.SecondaryIndexManager.search(SecondaryIndexManager.java:505) ~[cassandra-all-1.0.3.jar:1.0.3]
	at org.apache.cassandra.service.IndexScanVerbHandler.doVerb(IndexScanVerbHandler.java:42) ~[cassandra-all-1.0.3.jar:1.0.3]
	... 4 common frames omitted
{quote}


Logs on client side:

{quote}
org.scale7.cassandra.pelops.exceptions.TimedOutException: null
	at org.scale7.cassandra.pelops.exceptions.IExceptionTranslator$ExceptionTranslator.translate(IExceptionTranslator.java:55) ~[scale7-pelops-1.2-0.8.x.jar:na]
	at org.scale7.cassandra.pelops.Operand.tryOperation(Operand.java:116) ~[scale7-pelops-1.2-0.8.x.jar:na]
	at org.scale7.cassandra.pelops.Selector.getKeySlices(Selector.java:1877) ~[scale7-pelops-1.2-0.8.x.jar:na]
................................
Caused by: org.apache.cassandra.thrift.TimedOutException: null
	at org.apache.cassandra.thrift.Cassandra$get_indexed_slices_result.read(Cassandra.java:14073) ~[cassandra-thrift-1.0.3.jar:1.0.3]
	at org.apache.cassandra.thrift.Cassandra$Client.recv_get_indexed_slices(Cassandra.java:810) ~[cassandra-thrift-1.0.3.jar:1.0.3]
	at org.apache.cassandra.thrift.Cassandra$Client.get_indexed_slices(Cassandra.java:782) ~[cassandra-thrift-1.0.3.jar:1.0.3]
	at org.scale7.cassandra.pelops.Selector$6.execute(Selector.java:1880) ~[scale7-pelops-1.2-0.8.x.jar:na]
	at org.scale7.cassandra.pelops.Selector$6.execute(Selector.java:1877) ~[scale7-pelops-1.2-0.8.x.jar:na]
	at org.scale7.cassandra.pelops.Operand.tryOperation(Operand.java:82) ~[scale7-pelops-1.2-0.8.x.jar:na]
	... 9 common frames omitted
{quote}

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