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Posted to issues@hbase.apache.org by "Tianying Chang (JIRA)" <ji...@apache.org> on 2012/11/07 19:42:12 UTC

[jira] [Resolved] (HBASE-7061) region balance algorithm should do "contiue" instead of "break" when calculating the underloaded server

     [ https://issues.apache.org/jira/browse/HBASE-7061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tianying Chang resolved HBASE-7061.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.92.3

the fix is in the same patch as the related bug. 
                
> region balance algorithm should do "contiue" instead of "break" when calculating the underloaded server
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7061
>                 URL: https://issues.apache.org/jira/browse/HBASE-7061
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Tianying Chang
>            Assignee: Tianying Chang
>             Fix For: 0.92.3
>
>
> I found this issue when investigating HBASE-7060. Basically, I think  the intention of this code below is to find all the underloaded server. By using break, it will exit earlier, depending on where the non-overloaded server show up in the list.  "break" should be changed to "continue". 
> Map<ServerName, Integer> underloadedServers = new HashMap<ServerName, Integer>();
> for (Map.Entry<ServerAndLoad, List<HRegionInfo>> server:
> serversByLoad.entrySet()) {
> int regionCount = server.getKey().getLoad();
> if (regionCount >= min) { break; }
> underloadedServers.put(server.getKey().getServerName(), min - regionCount);
> }

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