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Lijin Bin commented on HBASE-23262: ----------------------------------- Pushed to branch-2.1+. Thanks [~kpalanisamy] for contributing. > 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} -- This message was sent by Atlassian Jira (v8.3.4#803005)