[jira] [Updated] (CASSANDRA-4723) Improve write timeout exceptions

["Sylvain Lebresne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-4723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sylvain Lebresne updated CASSANDRA-4723:
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    Attachment: 4723.txt

Attaching patch that addresses both point above.
                
> Improve write timeout exceptions 
> ---------------------------------
>
>                 Key: CASSANDRA-4723
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4723
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 1.2.0 beta 1
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 1.2.0 beta 2
>
>         Attachments: 4723.txt
>
>
> Through the binary protocol (and to a lesser extend in thrift), we now expose more information with a timeout, so that clients can take the right decision as far as retrying the operation is concerned. Concerning write timeouts, there is two places where I think we should improve that a bit:
> * regarding batchlog writes: what clients are interested in is to know if the option was atomic basically. If it was, there is no good reason to retry the write, otherwise, you should (or at least you know there might be inconsistencies if you don't).
> * we should return a separate exception for counter writes as in that case no retry should ever be done.

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