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Posted to dev@hbase.apache.org by "Lijin Bin (Jira)" <ji...@apache.org> on 2019/11/08 02:00:00 UTC

[jira] [Resolved] (HBASE-23262) Cannot load Master UI

     [ https://issues.apache.org/jira/browse/HBASE-23262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lijin Bin resolved HBASE-23262.
-------------------------------
    Resolution: Fixed

> Cannot load Master UI
> ---------------------
>
>                 Key: HBASE-23262
>                 URL: https://issues.apache.org/jira/browse/HBASE-23262
>             Project: HBase
>          Issue Type: Bug
>          Components: master, UI
>    Affects Versions: 3.0.0
>            Reporter: Karthik Palanisamy
>            Assignee: Karthik Palanisamy
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 2.1.8, 2.2.3
>
>
> If no online regionservers then master UI can't be opened. This issue occurs when using RSGroupAdminEndpoint coprocessor(RSGrouping).  The master home page tries to load rsgroup info from "hbase:rsgroup" table but currently no regionservers up and running. 
>  
> [http://172.26.70.200:16010|http://172.26.70.200:16010/]
> {code:java}
> HTTP ERROR 500
> Problem accessing /master-status. 
> Reason:    
>  Server Error
> Caused by:
> java.io.UncheckedIOException: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=2, exceptions:
> ...
> Tue Nov
> 05 23:58:51 UTC 2019, , org.apache.hadoop.hbase.exceptions.TimeoutIOException:
> Timeout(9450ms) waiting for region location for hbase:rsgroup, row='',
> replicaId=0
> at
> org.apache.hadoop.hbase.client.ResultScanner$1.hasNext(ResultScanner.java:55)
>         at
> org.apache.hadoop.hbase.RSGroupTableAccessor.getAllRSGroupInfo(RSGroupTableAccessor.java:59)
>         at
> org.apache.hadoop.hbase.tmpl.master.RSGroupListTmplImpl.renderNoFlush(RSGroupListTmplImpl.java:58)
>         at
> org.apache.hadoop.hbase.tmpl.master.RSGroupListTmpl.renderNoFlush(RSGroupListTmpl.java:150)
>         at
> org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.renderNoFlush(MasterStatusTmplImpl.java:346)
>         at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.renderNoFlush(MasterStatusTmpl.java:397)
>         at
> org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.render(MasterStatusTmpl.java:388)
>         at
> org.apache.hadoop.hbase.master.MasterStatusServlet.doGet(MasterStatusServlet.java:79)
> {code}



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