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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6707) AIOOBE when doing select count(*) from on a mixed cluster.
Date Sun, 16 Feb 2014 20:16:19 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902809#comment-13902809
] 

Benedict commented on CASSANDRA-6707:
-------------------------------------

bq. The RowMutation serialization, however, has changed between VERSION_12 and VERSION_20
(keyspace name present/absent). The commitlog is, and has always been, implicitly versioned,
even if the replay code itself hasn't changed.

Yes, but it is supposed to be able to replay these older versions. Both the replay and the
RM are aware of the version change, so if this is the problem it is a bug.

> AIOOBE when doing select count(*) from on a mixed cluster.
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-6707
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6707
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: old nodes: Cassandra 1.2.16 from DSE 3.2.5  (unreleased)
> new node: Cassandra  2.0.5 from DSE 4.0.0 (unreleased)
>            Reporter: Piotr Kołaczkowski
>            Assignee: Tyler Hobbs
>            Priority: Critical
>         Attachments: 6707.patch
>
>
> After upgrading one node from 1.2 to 2.0, the following query fails with timeout:
> {noformat}
> Connected to test at localhost:9160.
> [cqlsh 4.1.0 | Cassandra 2.0.5.1-SNAPSHOT | CQL spec 3.1.1 | Thrift protocol 19.39.0]
> Use HELP for help.
> cqlsh> select count(*) from cfs.sblocks;
> Request did not complete within rpc_timeout.
> {noformat}
> Table definition:
> {noformat}
> cqlsh> describe columnfamily cfs.sblocks;
> CREATE TABLE sblocks (
>   key blob,
>   column1 blob,
>   value blob,
>   PRIMARY KEY (key, column1)
> ) WITH COMPACT STORAGE AND
>   bloom_filter_fp_chance=0.000068 AND
>   caching='KEYS_ONLY' AND
>   comment='Stores blocks of information associated with a inode' AND
>   dclocal_read_repair_chance=0.000000 AND
>   gc_grace_seconds=864000 AND
>   index_interval=128 AND
>   read_repair_chance=0.100000 AND
>   replicate_on_write='true' AND
>   populate_io_cache_on_flush='true' AND
>   default_time_to_live=0 AND
>   speculative_retry='99.0PERCENTILE' AND
>   memtable_flush_period_in_ms=0 AND
>   compaction={'class': 'com.datastax.bdp.hadoop.cfs.compaction.CFSCompactionStrategy'}
AND
>   compression={};
> {noformat}
> The 1.2 node reports the following error:
> {noformat}
> ERROR 08:38:02,006 Exception in thread Thread[Thread-32,5,main]
> java.lang.ArrayIndexOutOfBoundsException: 36
> 	at org.apache.cassandra.net.MessageIn.read(MessageIn.java:59)
> 	at org.apache.cassandra.net.IncomingTcpConnection.receiveMessage(IncomingTcpConnection.java:208)
> 	at org.apache.cassandra.net.IncomingTcpConnection.handleModernVersion(IncomingTcpConnection.java:140)
> 	at org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:83)
> {noformat}
> There were no errors during the upgrade.



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