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Type:
Bug
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Status: Resolved
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: 2.3.0
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Fix Version/s: 3.0.0-alpha-1, 2.3.1, 2.4.0, 2.2.6
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Component/s: master
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Labels:None
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Hadoop Flags:Reviewed
I got a 500 error while accessing the master web ui (non-backup master) during startup.
2020-07-21 18:56:39,762 WARN org.eclipse.jetty.servlet.ServletHandler: /master-status java.lang.NullPointerException at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.renderNoFlush(MasterStatusTmplImpl.java:339) 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) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ...
MasterStatusTmplImpl.java:339 appears to align with MasterStatusTmpl.jamon:227:
<%if master.getMasterCoprocessorHost().findCoprocessor("RSGroupAdminEndpoint") != null && serverManager.getOnlineServersList().size() > 0 %>
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