[jira] [Updated] (HBASE-16910) Avoid NPE when starting StochasticLoadBalancer

["Ted Yu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-16910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu updated HBASE-16910:
---------------------------
    Summary: Avoid NPE when starting StochasticLoadBalancer  (was: Avoid NPE when start StochasticLoadBalancer)

> Avoid NPE when starting StochasticLoadBalancer
> ----------------------------------------------
>
>                 Key: HBASE-16910
>                 URL: https://issues.apache.org/jira/browse/HBASE-16910
>             Project: HBase
>          Issue Type: Bug
>          Components: Balancer
>    Affects Versions: 2.0.0
>            Reporter: Guanghao Zhang
>            Assignee: Guanghao Zhang
>            Priority: Minor
>         Attachments: HBASE-16910-v1.patch, HBASE-16910.patch
>
>
> When master start, it initialize StochasticLoadBalancer.
> {code}
> this.balancer.setClusterStatus(getClusterStatus());
> this.balancer.setMasterServices(this);
> {code}
> It first setClusterStatus(), then setMasterService(). But in setClusterStatus method, it use master service which is not initialized. So it will throw NPE.
> {code}
> int tablesCount = isByTable ? services.getTableDescriptors().getAll().size() : 1;
> {code}
> It happens when set isByTable is ture.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)