[jira] [Commented] (CASSANDRA-5149) Respect slice count even if column expire mid-request

["Aleksey Yeschenko (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679220#comment-13679220 ] 

Aleksey Yeschenko commented on CASSANDRA-5149:
----------------------------------------------

There is another method that is affected - ExpiringColumn.create() that returns either a DeletedColumn or an ExpiringColumn instance, called by ColumnSerializer.deserializeColumnBody(). Now, we already do pass expireBefore to it as a parameter (in a limited way) and it's not (was not) difficult to make it be derived from read requests' timestamp. Except in one case - row cache deserialization. The required modifications go beyond the need for Cache API change and I haven't found a good way to deal with it.
Is there any change we actually will get rid of row cache in 2.0?
                
> Respect slice count even if column expire mid-request
> -----------------------------------------------------
>
>                 Key: CASSANDRA-5149
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5149
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Sylvain Lebresne
>            Assignee: Aleksey Yeschenko
>             Fix For: 2.0
>
>
> This is a follow-up of CASSANDRA-5099.
> If a column expire just while a slice query is performed, it is possible for replicas to count said column as live but to have the coordinator seeing it as dead when building the final result. The effect that the query might return strictly less columns that the requested slice count even though there is some live columns matching the slice predicate but not returned in the result.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira