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From "Mck SembWever (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2388) ColumnFamilyRecordReader fails for a given split because a host is down, even if records could reasonably be read from other replica.
Date Thu, 30 Jun 2011 21:43:28 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mck SembWever updated CASSANDRA-2388:
-------------------------------------

    Attachment: CASSANDRA-2388-local-nodes-only.rough-sketch

Is CASSANDRA-2388-local-nodes-only-rough-sketch the direction we want then?

This is very initial code, i can't get {{new JobClient(JobTracker.getAddress(conf), conf).getClusterStatus().getActiveTrackerNames()}}
to work, need a little help here.
(Also CFRR.getLocations() can be drastically reduced).

> ColumnFamilyRecordReader fails for a given split because a host is down, even if records
could reasonably be read from other replica.
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2388
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2388
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 0.7.6, 0.8.0
>            Reporter: Eldon Stegall
>            Assignee: Jeremy Hanna
>              Labels: hadoop, inputformat
>             Fix For: 0.7.7, 0.8.2
>
>         Attachments: 0002_On_TException_try_next_split.patch, CASSANDRA-2388-addition1.patch,
CASSANDRA-2388-local-nodes-only.rough-sketch, CASSANDRA-2388.patch, CASSANDRA-2388.patch,
CASSANDRA-2388.patch
>
>
> ColumnFamilyRecordReader only tries the first location for a given split. We should try
multiple locations for a given split.

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