[jira] [Assigned] (HBASE-4386) NPE in TaskMonitor

["Todd Lipcon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon reassigned HBASE-4386:
----------------------------------

    Assignee: Todd Lipcon

> NPE in TaskMonitor
> ------------------
>
>                 Key: HBASE-4386
>                 URL: https://issues.apache.org/jira/browse/HBASE-4386
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.92.0
>
>
> Saw the following hitting /rs-status
> <pre>    INTERNAL_SERVER_ERROR</pre></p><h3>Caused by:</h3><pre>java.lang.NullPointerException
>         at org.apache.hadoop.hbase.monitoring.TaskMonitor.purgeExpiredTasks(TaskMonitor.java:97)
>         at org.apache.hadoop.hbase.monitoring.TaskMonitor.getTasks(TaskMonitor.java:127)
>         at org.apache.hbase.tmpl.common.TaskMonitorTmplImpl.renderNoFlush(TaskMonitorTmplImpl.java:50)
>         at org.apache.hbase.tmpl.common.TaskMonitorTmpl.renderNoFlush(TaskMonitorTmpl.java:170)
>         at org.apache.hbase.tmpl.regionserver.RSStatusTmplImpl.renderNoFlush(RSStatusTmplImpl.java:70)
>         at org.apache.hbase.tmpl.regionserver.RSStatusTmpl.renderNoFlush(RSStatusTmpl.java:176)
>         at org.apache.hbase.tmpl.regionserver.RSStatusTmpl.render(RSStatusTmpl.java:167)
>         at org.apache.hadoop.hbase.regionserver.RSStatusServlet.doGet(RSStatusServlet.java:48)

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