[ https://issues.apache.org/jira/browse/HADOOP-10722?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
surendra singh lilhore resolved HADOOP-10722. --------------------------------------------- Resolution: Not a Problem > Standby NN continuing as standby when active NN machine got shutdown. > --------------------------------------------------------------------- > > Key: HADOOP-10722 > URL: https://issues.apache.org/jira/browse/HADOOP-10722 > Project: Hadoop Common > Issue Type: Bug > Components: auto-failover, ha > Affects Versions: 2.4.0 > Reporter: surendra singh lilhore > > I have HA cluster with 3 ZK, 3 QJM. > My Active NN machine got shutdown, but still my standby NN is standby only. > It should be active > ZKFC logs > ======== > {noformat} > 2014-06-19 13:39:30,810 INFO org.apache.hadoop.ha.NodeFencer: ====== > Beginning Service Fencing Process... ====== > 2014-06-19 13:39:30,810 INFO org.apache.hadoop.ha.NodeFencer: Trying method > 1/1: org.apache.hadoop.ha.SshFenceByTcpPort(null) > 2014-06-19 13:39:30,811 INFO org.apache.hadoop.ha.SshFenceByTcpPort: > Connecting to host-10-18-40-101... > 2014-06-19 13:39:30,811 INFO org.apache.hadoop.ha.SshFenceByTcpPort.jsch: > Connecting to host-10-18-40-101 port 22 > 2014-06-19 13:39:33,814 WARN org.apache.hadoop.ha.SshFenceByTcpPort: Unable > to connect to host-10-18-40-101 as user myuser > com.jcraft.jsch.JSchException: java.net.NoRouteToHostException: No route to > host > at com.jcraft.jsch.Util.createSocket(Util.java:386) > at com.jcraft.jsch.Session.connect(Session.java:182) > at > org.apache.hadoop.ha.SshFenceByTcpPort.tryFence(SshFenceByTcpPort.java:100) > at org.apache.hadoop.ha.NodeFencer.fence(NodeFencer.java:97) > at > org.apache.hadoop.ha.ZKFailoverController.doFence(ZKFailoverController.java:521) > at > org.apache.hadoop.ha.ZKFailoverController.fenceOldActive(ZKFailoverController.java:494) > at > org.apache.hadoop.ha.ZKFailoverController.access$1100(ZKFailoverController.java:59) > at > org.apache.hadoop.ha.ZKFailoverController$ElectorCallbacks.fenceOldActive(ZKFailoverController.java:837) > at > org.apache.hadoop.ha.ActiveStandbyElector.fenceOldActive(ActiveStandbyElector.java:901) > at > org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:800) > at > org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:415) > at > org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:596) > at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495) > 2014-06-19 13:39:33,814 WARN org.apache.hadoop.ha.NodeFencer: Fencing method > org.apache.hadoop.ha.SshFenceByTcpPort(null) was unsuccessful. > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)