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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7338) CFS.getRangeSlice should update latency metrics
Date Wed, 14 Jan 2015 22:27:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14277796#comment-14277796
] 

Aleksey Yeschenko commented on CASSANDRA-7338:
----------------------------------------------

[~cnlwsu] It will be the EstimatedHistogram in 3.0 anyway. Do you need it badly in 2.1?

> CFS.getRangeSlice should update latency metrics
> -----------------------------------------------
>
>                 Key: CASSANDRA-7338
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7338
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Trivial
>             Fix For: 2.1 rc2
>
>         Attachments: 7338-3.txt, CASSANDRA-7338-v2.txt, CASSANDRA-7338.txt
>
>
> CFS.getRangeSlice doesn't update the CF readLatency metric in the same way as CFS.getColumnFamily
does. 
> I may be missing something, but I couldn't see a good reason why this wasn't already
the case as without it, "SELECT * FROM t WHERE x=y" results in the read metrics being incremented,
but "SELECT * FROM t" doesn't.



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