[jira] [Resolved] (CASSANDRA-3150) ColumnFormatRecordReader loops forever (StorageService.getSplits(..) out of whack)

["Mck SembWever (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-3150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mck SembWever resolved CASSANDRA-3150.
--------------------------------------

       Resolution: Cannot Reproduce
    Fix Version/s: 0.8.6

An upgrade to 0.8.6 /seems/ to have fixed this.
I saw one map task (CFRR) reach 150% but nothing like i was seeing before.

Maybe there is something else happening in the upgrade process that fixed it?

Otherwise i'm happy to close this issue for now and reopen if the problem exacerbates again.

> ColumnFormatRecordReader loops forever (StorageService.getSplits(..) out of whack)
> ----------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-3150
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3150
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 0.8.4, 0.8.5
>            Reporter: Mck SembWever
>            Assignee: Mck SembWever
>            Priority: Critical
>             Fix For: 0.8.6
>
>         Attachments: CASSANDRA-3150.patch, Screenshot-Counters for task_201109212019_1060_m_000029 - Mozilla Firefox.png, Screenshot-Hadoop map task list for job_201109212019_1060 on cassandra01 - Mozilla Firefox.png, attempt_201109071357_0044_m_003040_0.grep-get_range_slices.log
>
>
> From http://thread.gmane.org/gmane.comp.db.cassandra.user/20039
> {quote}
> bq. Cassandra-0.8.4 w/ ByteOrderedPartitioner
> bq. CFIF's inputSplitSize=196608
> bq. 3 map tasks (from 4013) is still running after read 25 million rows.
> bq. Can this be a bug in StorageService.getSplits(..) ?
> getSplits looks pretty foolproof to me but I guess we'd need to add
> more debug logging to rule out a bug there for sure.
> I guess the main alternative would be a bug in the recordreader paging.
> {quote}

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