Nick Dimiduk created HBASE-24752: ------------------------------------ Summary: NPE/500 accessing webui on master startup Key: HBASE-24752 URL: https://issues.apache.org/jira/browse/HBASE-24752 Project: HBase Issue Type: Bug Components: master Affects Versions: 2.3.0 Reporter: Nick Dimiduk
I got a 500 error while accessing the master web ui (non-backup master) during startup. {noformat} 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) ... {noformat} {{MasterStatusTmplImpl.java:339}} appears to align with {{MasterStatusTmpl.jamon:227}}: {noformat} <%if master.getMasterCoprocessorHost().findCoprocessor("RSGroupAdminEndpoint") != null && serverManager.getOnlineServersList().size() > 0 %> {noformat} -- This message was sent by Atlassian Jira (v8.3.4#803005)