[jira] Commented: (CASSANDRA-2052) Add configurable retry count to Hadoop code

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-2052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12986540#action_12986540 ] 

Jonathan Ellis commented on CASSANDRA-2052:
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As discussed in CASSANDRA-919 and CASSANDRA-959, I think this is the Wrong Fix.  Timeouts indicate an overload scenario, so retrying might get you your results eventually, but it's more likely to perpetuate the over-capacity problem, causing more timeouts, causing more retries, ...

> Add configurable retry count to Hadoop code
> -------------------------------------------
>
>                 Key: CASSANDRA-2052
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2052
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>    Affects Versions: 0.6.9, 0.7.0
>            Reporter: Jeremy Hanna
>
> The Hadoop integration code doesn't do a retry if it times out.  Often people have to tune the batch size and the rpc timeout in order to get it to work.  We should probably have a configurable timeout in there (credit to Jairam - http://www.mail-archive.com/user@cassandra.apache.org/msg08938.html) so that it doesn't just fail the job with a timeout exception.

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