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https://issues.apache.org/jira/browse/CASSANDRA-5856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13741288#comment-13741288
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Brandon Williams commented on CASSANDRA-5856:
---------------------------------------------
So, this is a lot simpler than the test makes it look. It's caused simple by
asking for the same column by name twice:
{noformat}
cqlsh> create keyspace foo WITH replication = {'class': 'SimpleStrategy',
'replication_factor': 1};
cqlsh> use foo;
cqlsh:foo> create table bar (row varchar, name varchar, value int, PRIMARY KEY
(row, name));
cqlsh:foo> update bar set value = 1 WHERE row = 'baz' AND name = 'qux';
cqlsh:foo> select value from bar where row='baz' AND name in ('qux', 'qux');
Request did not complete within rpc_timeout.
{noformat}
Results in:
{noformat}
java.lang.AssertionError: Added cell qux: does not sort as the last; contents
are qux::false:0@1376590034567000,qux:value:false:4@1376590034567000, with
comparator
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)
{noformat}
> AE in ArrayBackedSortedColumns
> ------------------------------
>
> Key: CASSANDRA-5856
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5856
> Project: Cassandra
> Issue Type: Bug
> Reporter: Brandon Williams
> Assignee: Aleksey Yeschenko
> Priority: Critical
> Fix For: 1.2.9
>
> Attachments: 5856-assert.txt
>
>
> {noformat}
> ERROR [ReadStage:3] 2013-08-07 06:58:21,485 CassandraDaemon.java (line 192)
> Exception in thread Thread[ReadStage:3,5,main]
> java.lang.AssertionError: Added column does not sort as the last column
> at
> org.apache.cassandra.db.ArrayBackedSortedColumns.addColumn(ArrayBackedSortedColumns.java:131)
> at
> org.apache.cassandra.db.AbstractColumnContainer.addColumn(AbstractColumnContainer.java:119)
> at
> org.apache.cassandra.db.AbstractColumnContainer.addColumn(AbstractColumnContainer.java:114)
> at
> org.apache.cassandra.db.filter.SliceQueryFilter.collectReducedColumns(SliceQueryFilter.java:171)
> at
> org.apache.cassandra.db.filter.QueryFilter.collateColumns(QueryFilter.java:136)
> at
> org.apache.cassandra.db.filter.QueryFilter.collateOnDiskAtom(QueryFilter.java:84)
> at
> org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:291)
> at
> org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:65)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1390)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1213)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1125)
> at org.apache.cassandra.db.Table.getRow(Table.java:347)
> at
> org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:70)
> at
> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1047)
> at
> org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1593)
> 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)
> {noformat}
> test_column_index_stress in wide_rows_test will reproduce this within ~20
> runs and bisect strongly points to a regression in CASSANDRA-5762
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