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

["Andrew Purtell (JIRA)" <ji...@apache.org>]

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

Andrew Purtell updated HBASE-16910:
-----------------------------------
    Fix Version/s: 1.3.3

> 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
>             Fix For: 1.4.0, 1.3.3, 2.0.0
>
>         Attachments: HBASE-16910-branch-1.patch, 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.



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