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From YouPeng Yang <yypvsxf19870...@gmail.com>
Subject Re: auto-failover does not work
Date Mon, 02 Dec 2013 12:40:49 GMT
Hi Jitendra
  Yes
  I'm doubt that it need to enter the ssh-agent bash & ssh-add  before I
ssh the NN from each other.Is it an problem?

Regards




2013/12/2 Jitendra Yadav <jeetuyadav200890@gmail.com>

> Are you able to connect both NN hosts using SSH without password?
> Make sure you have correct ssh keys in authorized key file.
>
> Regards
> Jitendra
>
>
> On Mon, Dec 2, 2013 at 5:50 PM, YouPeng Yang <yypvsxf19870706@gmail.com>wrote:
>
>> Hi Pavan
>>
>>
>>   I'm using sshfence
>>
>> ------core-site.xml-----------------
>>
>> <configuration>
>>  <property>
>>      <name>fs.defaultFS</name>
>>      <value>hdfs://lklcluster</value>
>>      <final>true</final>
>>  </property>
>>
>>  <property>
>>      <name>hadoop.tmp.dir</name>
>>      <value>/home/hadoop/tmp2</value>
>>  </property>
>>
>>
>> </configuration>
>>
>>
>> -------hdfs-site.xml-------------
>>
>> <configuration>
>>  <property>
>>      <name>dfs.namenode.name.dir</name>
>>     <value>/home/hadoop/namedir2</value>
>>  </property>
>>
>>  <property>
>>      <name>dfs.datanode.data.dir</name>
>>      <value>/home/hadoop/datadir2</value>
>>  </property>
>>
>>  <property>
>>    <name>dfs.nameservices</name>
>>    <value>lklcluster</value>
>> </property>
>>
>> <property>
>>     <name>dfs.ha.namenodes.lklcluster</name>
>>     <value>nn1,nn2</value>
>> </property>
>> <property>
>>   <name>dfs.namenode.rpc-address.lklcluster.nn1</name>
>>   <value>hadoop2:8020</value>
>> </property>
>> <property>
>>     <name>dfs.namenode.rpc-address.lklcluster.nn2</name>
>>     <value>hadoop3:8020</value>
>> </property>
>>
>> <property>
>>   <name>dfs.namenode.http-address.lklcluster.nn1</name>
>>     <value>hadoop2:50070</value>
>> </property>
>>
>> <property>
>>     <name>dfs.namenode.http-address.lklcluster.nn2</name>
>>     <value>hadoop3:50070</value>
>> </property>
>>
>> <property>
>>   <name>dfs.namenode.shared.edits.dir</name>
>>
>> <value>qjournal://hadoop1:8485;hadoop2:8485;hadoop3:8485/lklcluster</value>
>> </property>
>> <property>
>>   <name>dfs.client.failover.proxy.provider.lklcluster</name>
>>
>> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
>> </property>
>> <property>
>>   <name>dfs.ha.fencing.methods</name>
>>   <value>sshfence</value>
>> </property>
>>
>> <property>
>>   <name>dfs.ha.fencing.ssh.private-key-files</name>
>>    <value>/home/hadoop/.ssh/id_rsa</value>
>> </property>
>>
>> <property>
>>     <name>dfs.ha.fencing.ssh.connect-timeout</name>
>>      <value>5000</value>
>> </property>
>>
>> <property>
>>   <name>dfs.journalnode.edits.dir</name>
>>    <value>/home/hadoop/journal/data</value>
>> </property>
>>
>> <property>
>>    <name>dfs.ha.automatic-failover.enabled</name>
>>       <value>true</value>
>> </property>
>>
>> <property>
>>      <name>ha.zookeeper.quorum</name>
>>      <value>hadoop1:2181,hadoop2:2181,hadoop3:2181</value>
>> </property>
>>
>> </configuration>
>>
>>
>> 2013/12/2 Pavan Kumar Polineni <smartsunnyb4u@gmail.com>
>>
>>> Post your config files and in which method you are following for
>>> automatic failover
>>>
>>>
>>> On Mon, Dec 2, 2013 at 5:34 PM, YouPeng Yang <yypvsxf19870706@gmail.com>wrote:
>>>
>>>> Hi i
>>>>   I'm testing the HA auto-failover within hadoop-2.2.0
>>>>
>>>>   The cluster can be manully failover ,however failed with the
>>>> automatic failover.
>>>> I setup the HA according to  the URL
>>>>
>>>> http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/HDFSHighAvailabilityWithQJM.html
>>>>
>>>>   When I test the automatic failover, I killed my active NN by kill -9
>>>> <Pid-nn>,while the standby namenode does not change to active state.
>>>>   It came out the log in my DFSZKFailoverController as [1]
>>>>
>>>>  Please help me ,any suggestion will be appreciated.
>>>>
>>>>
>>>> Regards.
>>>>
>>>>
>>>> zkfc
>>>> log[1]----------------------------------------------------------------------------------------------------
>>>>
>>>> 2013-12-02 19:49:28,588 INFO org.apache.hadoop.ha.NodeFencer: ======
>>>> Beginning Service Fencing Process... ======
>>>> 2013-12-02 19:49:28,588 INFO org.apache.hadoop.ha.NodeFencer: Trying
>>>> method 1/1: org.apache.hadoop.ha.SshFenceByTcpPort(null)
>>>> 2013-12-02 19:49:28,590 INFO org.apache.hadoop.ha.SshFenceByTcpPort:
>>>> Connecting to hadoop3...
>>>> 2013-12-02 19:49:28,590 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Connecting to hadoop3 port 22
>>>> 2013-12-02 19:49:28,592 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Connection established
>>>> 2013-12-02 19:49:28,603 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Remote version string:
>>>> SSH-2.0-OpenSSH_5.3
>>>> 2013-12-02 19:49:28,603 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Local version string:
>>>> SSH-2.0-JSCH-0.1.42
>>>> 2013-12-02 19:49:28,603 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: CheckCiphers:
>>>> aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
>>>> 2013-12-02 19:49:28,608 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: aes256-ctr is not available.
>>>> 2013-12-02 19:49:28,608 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: aes192-ctr is not available.
>>>> 2013-12-02 19:49:28,608 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: aes256-cbc is not available.
>>>> 2013-12-02 19:49:28,608 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: aes192-cbc is not available.
>>>> 2013-12-02 19:49:28,609 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: arcfour256 is not available.
>>>> 2013-12-02 19:49:28,610 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_KEXINIT sent
>>>> 2013-12-02 19:49:28,610 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_KEXINIT received
>>>> 2013-12-02 19:49:28,610 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: kex: server->client aes128-ctr
>>>> hmac-md5 none
>>>> 2013-12-02 19:49:28,610 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: kex: client->server aes128-ctr
>>>> hmac-md5 none
>>>> 2013-12-02 19:49:28,617 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_KEXDH_INIT sent
>>>> 2013-12-02 19:49:28,617 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: expecting SSH_MSG_KEXDH_REPLY
>>>> 2013-12-02 19:49:28,634 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: ssh_rsa_verify: signature true
>>>> 2013-12-02 19:49:28,635 WARN
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Permanently added 'hadoop3'
>>>> (RSA) to the list of known hosts.
>>>> 2013-12-02 19:49:28,635 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_NEWKEYS sent
>>>> 2013-12-02 19:49:28,635 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_NEWKEYS received
>>>> 2013-12-02 19:49:28,636 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_SERVICE_REQUEST sent
>>>> 2013-12-02 19:49:28,637 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: SSH_MSG_SERVICE_ACCEPT received
>>>> 2013-12-02 19:49:28,638 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Authentications that can
>>>> continue: gssapi-with-mic,publickey,keyboard-interactive,password
>>>> 2013-12-02 19:49:28,639 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Next authentication method:
>>>> gssapi-with-mic
>>>> 2013-12-02 19:49:28,642 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Authentications that can
>>>> continue: publickey,keyboard-interactive,password
>>>> 2013-12-02 19:49:28,642 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Next authentication method:
>>>> publickey
>>>> 2013-12-02 19:49:28,644 INFO
>>>> org.apache.hadoop.ha.SshFenceByTcpPort.jsch: Disconnecting from hadoop3
>>>> port 22
>>>> 2013-12-02 19:49:28,644 WARN org.apache.hadoop.ha.SshFenceByTcpPort:
>>>> Unable to connect to hadoop3 as user hadoop
>>>> com.jcraft.jsch.JSchException: Auth fail
>>>>     at com.jcraft.jsch.Session.connect(Session.java:452)
>>>>     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:900)
>>>>     at
>>>> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:799)
>>>>     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)
>>>> 2013-12-02 19:49:28,644 WARN org.apache.hadoop.ha.NodeFencer: Fencing
>>>> method org.apache.hadoop.ha.SshFenceByTcpPort(null) was unsuccessful.
>>>> 2013-12-02 19:49:28,645 ERROR org.apache.hadoop.ha.NodeFencer: Unable
>>>> to fence service by any configured method.
>>>> 2013-12-02 19:49:28,645 INFO org.apache.hadoop.ha.ZKFailoverController:
>>>> Local service NameNode at hadoop2/10.7.23.125:8020 entered state:
>>>> SERVICE_NOT_RESPONDING
>>>> 2013-12-02 19:49:28,646 WARN org.apache.hadoop.ha.ActiveStandbyElector:
>>>> Exception handling the winning of election
>>>> java.lang.RuntimeException: Unable to fence NameNode at hadoop3/
>>>> 10.7.23.124:8020
>>>>     at
>>>> org.apache.hadoop.ha.ZKFailoverController.doFence(ZKFailoverController.java:522)
>>>>     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:900)
>>>>     at
>>>> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:799)
>>>>     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)
>>>> 2013-12-02 19:49:28,646 INFO org.apache.hadoop.ha.ActiveStandbyElector:
>>>> Trying to re-establish ZK session
>>>> 2013-12-02 19:49:28,669 INFO org.apache.zookeeper.ZooKeeper: Session:
>>>> 0x2429313c808025b closed
>>>> 2013-12-02 19:49:29,672 INFO org.apache.zookeeper.ZooKeeper: Initiating
>>>> client connection, connectString=hadoop1:2181,hadoop2:2181,hadoop3:2181
>>>> sessionTimeout=5000
>>>> watcher=org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef@3545fe3b
>>>> 2013-12-02 19:49:29,675 INFO org.apache.zookeeper.ClientCnxn: Opening
>>>> socket connection to server hadoop3/10.7.23.124:2181. Will not attempt
>>>> to authenticate using SASL (Unable to locate a login configuration)
>>>> 2013-12-02 19:49:29,675 INFO org.apache.zookeeper.ClientCnxn: Socket
>>>> connection established to hadoop3/10.7.23.124:2181, initiating session
>>>> 2013-12-02 19:49:29,699 INFO org.apache.zookeeper.ClientCnxn: Session
>>>> establishment complete on server hadoop3/10.7.23.124:2181, sessionid =
>>>> 0x3429312ba330262, negotiated timeout = 5000
>>>> 2013-12-02 19:49:29,702 INFO org.apache.zookeeper.ClientCnxn:
>>>> EventThread shut down
>>>> 2013-12-02 19:49:29,706 INFO org.apache.hadoop.ha.ActiveStandbyElector:
>>>> Session connected.
>>>> 2013-12-02 19:49:29,706 INFO org.apache.hadoop.ha.ZKFailoverController:
>>>> Quitting master election for NameNode at hadoop2/10.7.23.125:8020 and
>>>> marking that fencing is necessary
>>>> 2013-12-02 19:49:29,706 INFO org.apache.hadoop.ha.ActiveStandbyElector:
>>>> Yielding from election
>>>> 2013-12-02 19:49:29,727 INFO org.apache.zookeeper.ZooKeeper: Session:
>>>> 0x3429312ba330262 closed
>>>> 2013-12-02 19:49:29,728 WARN org.apache.hadoop.ha.ActiveStandbyElector:
>>>> Ignoring stale result from old client with sessionId 0x3429312ba330262
>>>> 2013-12-02 19:49:29,728 INFO org.apache.zookeeper.ClientCnxn:
>>>> EventThread shut down
>>>>
>>>
>>>
>>
>

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