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From "Mck SembWever (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (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, 08 Sep 2011 06:03:09 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100093#comment-13100093
] 

Mck SembWever commented on CASSANDRA-2388:
------------------------------------------

In the meantime could we make this behavior configurable.
eg replace CFRR:176 with something like
{noformat}
    if(ConfigHelper.isDataLocalityDisabled())
    {
        return split.getLocations()[0];
    }
    else
    {
        throw new UnsupportedOperationException("no local connection available");
    }{noformat}


> 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: 0.6
>            Reporter: Eldon Stegall
>            Assignee: Mck SembWever
>              Labels: hadoop, inputformat
>             Fix For: 0.8.6
>
>         Attachments: 0002_On_TException_try_next_split.patch, CASSANDRA-2388-addition1.patch,
CASSANDRA-2388-extended.patch, CASSANDRA-2388.patch, 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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