cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tyler L. Hobbs (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1373) OrderPreservingPartitioner with type validated indexed columns causes ClassCastException
Date Tue, 17 Aug 2010 17:04:19 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12899470#action_12899470
] 

Tyler L. Hobbs commented on CASSANDRA-1373:
-------------------------------------------

Patch was not exercised correctly last time.  The patch does fix the issue, now.

> OrderPreservingPartitioner with type validated indexed columns causes ClassCastException
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1373
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1373
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7 beta 1
>         Environment: Cassandra Trunk
>            Reporter: Tyler L. Hobbs
>            Assignee: Jonathan Ellis
>             Fix For: 0.7 beta 2
>
>         Attachments: 1373.txt
>
>
> If OrderPreservingPartitioner is used and you have an indexed column with a type validator,
using batch_mutate to insert column values (like pycassa does) on the same key and indexed
column causes a ClassCastException to be thrown the *second* time you execute it.  That is,
the first batch_mutate succeeds, but the following ones fail.  CollatedOrderPreservingPartitioner
seems to avoid this problem.  Also, it appears that the row key is being compared to the column
value at some point using the validator's Comparator class (such as LongType) which is where
the actual exception is thrown.
> Stack trace below:
> {noformat}
> java.lang.RuntimeException: java.lang.ClassCastException: java.lang.String cannot be
cast to [B
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to [B
> 	at org.apache.cassandra.db.marshal.LongType.compare(LongType.java:27)
> 	at org.apache.cassandra.dht.LocalToken.compareTo(LocalToken.java:45)
> 	at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:82)
> 	at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:37)
> 	at java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:878)
> 	at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1893)
> 	at org.apache.cassandra.db.Memtable.resolve(Memtable.java:127)
> 	at org.apache.cassandra.db.Memtable.put(Memtable.java:119)
> 	at org.apache.cassandra.db.ColumnFamilyStore.apply(ColumnFamilyStore.java:508)
> 	at org.apache.cassandra.db.Table.applyCF(Table.java:452)
> 	at org.apache.cassandra.db.Table.apply(Table.java:409)
> 	at org.apache.cassandra.db.RowMutation.apply(RowMutation.java:196)
> 	at org.apache.cassandra.service.StorageProxy$2.runMayThrow(StorageProxy.java:276)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> 	... 3 more
> {noformat}

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message