[jira] [Created] (CASSANDRA-6333) ArrayIndexOutOfBound when using count(*) with over 10,000 rows

["Tyler Tolley (JIRA)" <ji...@apache.org>]

Tyler Tolley created CASSANDRA-6333:
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             Summary: ArrayIndexOutOfBound when using count(*) with over 10,000 rows
                 Key: CASSANDRA-6333
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6333
             Project: Cassandra
          Issue Type: Bug
          Components: Core
         Environment: Cassandra 2.0.2, Ubuntu 12.04.3 LTS, Oracle Java 1.7.0_21
            Reporter: Tyler Tolley


We've been getting a TSocket read 0 bytes error when we try and run SELECT count(*) FROM <table> if the table has over 10,000 rows.

I've been able to reproduce the problem by using cassandra-stress to insert different number of rows. When I insert under 10,000, the count is returned. When I insert exactly 10,000, I get a message that my results were limited to 10,000 by default. If insert 10,001, I get the exception below.

{code}
ERROR [Thrift:4] 2013-11-12 09:54:04,850 CustomTThreadPoolServer.java (line 212) Error occurred during processing of message.
java.lang.ArrayIndexOutOfBoundsException: -1
	at java.util.ArrayList.elementData(ArrayList.java:371)
	at java.util.ArrayList.remove(ArrayList.java:448)
	at org.apache.cassandra.cql3.ResultSet.trim(ResultSet.java:92)
	at org.apache.cassandra.cql3.statements.SelectStatement.process(SelectStatement.java:848)
	at org.apache.cassandra.cql3.statements.SelectStatement.pageCountQuery(SelectStatement.java:196)
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:163)
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:57)
	at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:129)
	at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:145)
	at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:136)
	at org.apache.cassandra.thrift.CassandraServer.execute_cql3_query(CassandraServer.java:1936)
	at org.apache.cassandra.thrift.Cassandra$Processor$execute_cql3_query.getResult(Cassandra.java:4394)
	at org.apache.cassandra.thrift.Cassandra$Processor$execute_cql3_query.getResult(Cassandra.java:4378)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
	at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:194)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
{code}




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