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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-5149) Respect slice count even if column expire mid-request
Date Tue, 18 Jun 2013 14:03:21 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13686732#comment-13686732
] 

Aleksey Yeschenko edited comment on CASSANDRA-5149 at 6/18/13 2:03 PM:
-----------------------------------------------------------------------

Thanks!

bq. In CounterColumn.reconcile (and CounterMutation and ... in fact), we don't support expiring
columns in counter tables so it's ok to just use say Long.MIN_VALUE (which a comment why)

I know. Same with Column.getString() - it's overloaded by ExpiringColumn anyway. I was debating
with myself what to use - Long.MIN_VALUE, 0, or just System.currentTimeMillis() where it doesn't
matter, and went with System.currentTimeMillis(). Will change to Long.MIN_VALUE with a comment
in both places.
                
      was (Author: iamaleksey):
    Thanks!

bq. In CounterColumn.reconcile (and CounterMutation and ... in fact), we don't support expiring
columns in counter tables so it's ok to just use say Long.MIN_VALUE (which a comment why)

I know. Same with Column.getString() - it's overloaded by ExpiringColumn anyway. I was debating
with myself what to use - Long.MIN_VALUE, 0, or just System.currentTimeMillis() where it doesn't
matter, and went with System.currentTimeMillis(). Will change to 0 with a comment in both
places.
                  
> 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.

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