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https://issues.apache.org/jira/browse/CASSANDRA-8461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242942#comment-14242942
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Philip Thompson commented on CASSANDRA-8461:
--------------------------------------------
[~thobbs], I will verify that this was not fixed by other work.
> java.lang.AssertionError when running select queries
> ----------------------------------------------------
>
> Key: CASSANDRA-8461
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8461
> Project: Cassandra
> Issue Type: Bug
> Components: API
> Environment: ubuntu 14.04
> Reporter: Chamila Dilshan Wijayarathna
> Assignee: Philip Thompson
>
> I have a column family with following schema.
> CREATE TABLE corpus.trigram_category_ordered_frequency (
> id bigint,
> word1 varchar,
> word2 varchar,
> word3 varchar,
> category varchar,
> frequency int,
> PRIMARY KEY(category,frequency,word1,word2,word3)
> );
> When I run
> select word1,word2,word3 from corpus.trigram_category_ordered_frequency
> where category IN ('N','A','C','S','G') order by frequency DESC LIMIT 10;
> I am getting error saying
> <ErrorMessage code=0000 [Server error] message="java.lang.AssertionError">
> But when I ran
> select * from corpus.trigram_category_ordered_frequency where category IN
> ('N','A','C','S','G') order by frequency DESC LIMIT 10;
> it works without any error.
> system log for this error is as follows.
> {code}
> ERROR [SharedPool-Worker-1] 2014-12-11 20:42:20,152 Message.java:538 -
> Unexpected exception during request; channel = [id: 0xea57d8b6,
> /127.0.0.1:35624 => /127.0.0.1:9042]
> java.lang.AssertionError: null
> at org.apache.cassandra.cql3.ResultSet.addRow(ResultSet.java:63)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.Selection$ResultSetBuilder.newRow(Selection.java:333)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.processColumnFamily(SelectStatement.java:1227)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.process(SelectStatement.java:1161)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.processResults(SelectStatement.java:290)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:267)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:215)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:64)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:226)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:248)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
> ~[apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439)
> [apache-cassandra-2.1.2.jar:2.1.2]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335)
> [apache-cassandra-2.1.2.jar:2.1.2]
> 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:471)
> [na:1.7.0_72]
> at
> org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
> [apache-cassandra-2.1.2.jar:2.1.2]
> at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
> [apache-cassandra-2.1.2.jar:2.1.2]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]{code}
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