[ https://issues.apache.org/jira/browse/HBASE-22860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wellington Chevreuil updated HBASE-22860: ----------------------------------------- Resolution: Fixed Fix Version/s: 2.1.6 2.2.1 3.0.0 Status: Resolved (was: Patch Available) Change worked on version 2 branches. Pushed to branch-2, branch-2.1 and branch-2.2. Thanks for the contribution, [~daisuke.kobayashi]! > Master's webui returns NPE/HTTP 500 under maintenance mode > ---------------------------------------------------------- > > Key: HBASE-22860 > URL: https://issues.apache.org/jira/browse/HBASE-22860 > Project: HBase > Issue Type: Bug > Components: master, UI > Affects Versions: 3.0.0, 2.2.0, 2.1.5, 2.2.1, 2.1.6 > Reporter: Daisuke Kobayashi > Assignee: Daisuke Kobayashi > Priority: Major > Fix For: 3.0.0, 2.2.1, 2.1.6 > > Attachments: HBASE-22860.master.001.patch, > HBASE-22860.master.002.patch, Screen Shot 2019-08-15 at 4.15.51 PM.png > > > Master's webui is not accessible when {{hbase.master.maintenance_mode}} is > set to true. This is because it's trying to load a coprocessor > {{RSGroupAdminEndpoint}}. > {code} > java.lang.NullPointerException > at > org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.renderNoFlush(MasterStatusTmplImpl.java:326) > 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:81) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) > at > org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1780) > at > org.apache.hadoop.hbase.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:112) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767) > at > org.apache.hadoop.hbase.http.ClickjackingPreventionFilter.doFilter(ClickjackingPreventionFilter.java:48) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767) > at > org.apache.hadoop.hbase.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1374) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767) > at > org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767) > at > org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49) > at > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767) > at > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583) > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) > at > org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) > at > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) > at > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) > at > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:513) > at > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) > at > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) > at > org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119) > at > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) > at org.eclipse.jetty.server.Server.handle(Server.java:539) > at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) > at > org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) > at > org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) > at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) > at > org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) > at > org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) > at > org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) > at > org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) > at > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) > at > org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) > at java.lang.Thread.run(Thread.java:748) > {code} -- This message was sent by Atlassian JIRA (v7.6.14#76016)