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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9811) Tie counter shards' logical clock value to timestamps
Date Thu, 02 Jun 2016 16:57:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15312660#comment-15312660
] 

Sam Tunnicliffe commented on CASSANDRA-9811:
--------------------------------------------

Pending CI, LGTM.

> Tie counter shards' logical clock value to timestamps
> -----------------------------------------------------
>
>                 Key: CASSANDRA-9811
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9811
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>             Fix For: 3.x
>
>
> CASSANDRA-6506 will get rid of counter shards, turning them into elements of a map. And
we'll be using the logical clock values as map element timestamps.
> To avoid unpleasant initial performance (being unable to perform certain sstable optimisations
on the read path), we should switch the shards to use {{max(timestamp, clock + 1)}} now, in
advance of CASSANDRA-6506 switch.



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