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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2981) Improve consistency of performance during heavy load
Date Fri, 10 Sep 2010 17:43:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12908114#action_12908114

stack commented on HBASE-2981:

Just for the record, hbase has worked in this "stutter"-y manner since time immemorial

> Improve consistency of performance during heavy load
> ----------------------------------------------------
>                 Key: HBASE-2981
>                 URL: https://issues.apache.org/jira/browse/HBASE-2981
>             Project: HBase
>          Issue Type: Task
>          Components: regionserver
>            Reporter: Todd Lipcon
> Currently when running load tests like YCSB, we experience periods of complete cluster
inactivity while all clients are blocked on a single region which is unavailable.
> As discussed recently on the list, we should brainstorm some ideas for how to improve
the situation: the goal here is to (a) minimize the amount of time when a region is inaccessible,
and (b) minimize the impact that one inaccessible region has on other operations in the cluster.

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