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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1305) Slow query log
Date Wed, 21 Jul 2010 20:08:51 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890870#action_12890870
] 

Jonathan Ellis commented on CASSANDRA-1305:
-------------------------------------------

I also need to be convinced that CLHM + LBQ aren't going to cause too much GC overhead.

Using the key as an id means you can get different requests polluting each others' data. 
Maybe a threadlocal would work better.

I'm inclined to prefer the CASSANDRA-1123 approach, you get 80% of the benefit for much less
overhead.

> Slow query log
> --------------
>
>                 Key: CASSANDRA-1305
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1305
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Daniel Kluesing
>            Priority: Minor
>             Fix For: 0.7 beta 1
>
>         Attachments: trunk-SlowQueryLog.txt
>
>
> If a query takes a long time, it's nice to know why

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