HBASE-24752 NPE/500 accessing webui on master startup

Closes #2148 Signed-off-by: Ted Yu <yuzhihong@gmail.com> Signed-off-by: Viraj Jasani <vjasani@apache.org>
apache · Jul 29, 2020 · 6fba086 · 6fba086
1 parent 086943e
commit 6fba086
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
@@ -223,7 +223,7 @@ AssignmentManager assignmentManager = master.getAssignmentManager();
         <%if master.getAssignmentManager() != null %>
           <& AssignmentManagerStatusTmpl; assignmentManager=master.getAssignmentManager()&>
         </%if>
-        <%if !master.isInMaintenanceMode() %>
+        <%if !master.isInMaintenanceMode() && master.getMasterCoprocessorHost() != null %>
           <%if master.getMasterCoprocessorHost().findCoprocessor("RSGroupAdminEndpoint") != null &&
             serverManager.getOnlineServersList().size() > 0 %>
             <section>