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Posted to issues@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2013/08/23 21:57:52 UTC
[jira] [Updated] (HBASE-9312) Lower StochasticLoadBalancer's
default max run time
[ https://issues.apache.org/jira/browse/HBASE-9312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Elliott Clark updated HBASE-9312:
---------------------------------
Status: Patch Available (was: Open)
> Lower StochasticLoadBalancer's default max run time
> ----------------------------------------------------
>
> Key: HBASE-9312
> URL: https://issues.apache.org/jira/browse/HBASE-9312
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.2
> Reporter: Jean-Daniel Cryans
> Assignee: Elliott Clark
> Fix For: 0.98.0, 0.96.0
>
> Attachments: HBASE-9312-0.patch
>
>
> Three things about the 1 minute it takes to decide if we want to balance or not:
> - 1 minute is also the default socket timeout, so if you call "balancer" in the shell you often get a SocketTimeoutException back. Bad user experience.
> - Elliott was telling me that we might not even need 1 minute to compute a good balance anyways because of other improvements. I tested 30 seconds on a badly balanced cluster and it worked well.
> - I personally think that 1 minute is too much time (Elliott disagrees).
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