Hi
Thank you, I have make passwordless SSH between the virtual machine,
I am confused about it
Cloud you help me
-----邮件原件-----
发件人: [email protected]
[mailto:[email protected]] 代表
Vladislav Feigin
发送时间: 2012年2月23日 19:58
收件人: [email protected]
主题: Re: 答复: TaskTracker Error
Hi
Check also passwordless SSH is configured properly between the nodes.
Vladi
נשלח מה-iPad שלי
ב-23 Feb 2012, בשעה 12:10, "tgh" <[email protected]> כתב/ה:
> Hi
> I use ubuntu , the firewall seems off , for three virtual machine, and how
> to solve ERROR , cloud you help me ?
>
> root@ubuntu:/home/hadoop-0.20.2# service iptables status
> iptables: unrecognized service
>
> root@ubuntu:/home/hadoop-0.20.2# ufw disable Firewall stopped and
> disabled on system startup root@ubuntu:/home/hadoop-0.20.2# ufw status
> Status: inactive
> root@ubuntu:/home/hadoop-0.20.2#
>
>
> this is port by Java on master 192.168.164.128 root@ubuntu:~#
> root@ubuntu:~# netstat -nap|grep java
> tcp6 0 0 :::41095 :::* LISTEN
> 4000/java
> tcp6 0 0 :::50090 :::* LISTEN
> 4222/java
> tcp6 0 0 :::50060 :::* LISTEN
> 4492/java
> tcp6 0 0 :::42316 :::* LISTEN
> 4297/java
> tcp6 0 0 192.168.164.136:9100 :::* LISTEN
> 3800/java
> tcp6 0 0 192.168.164.136:9101 :::* LISTEN
> 4297/java
> tcp6 0 0 :::50030 :::* LISTEN
> 4297/java
> tcp6 0 0 :::33297 :::* LISTEN
> 3800/java
> tcp6 0 0 127.0.0.1:60722 :::* LISTEN
> 4492/java
> tcp6 0 0 :::50070 :::* LISTEN
> 3800/java
> tcp6 0 0 :::50010 :::* LISTEN
> 4000/java
> tcp6 0 0 :::50075 :::* LISTEN
> 4000/java
> tcp6 0 0 :::35262 :::* LISTEN
> 4222/java
> tcp6 0 0 :::50020 :::* LISTEN
> 4000/java
> tcp6 0 0 192.168.164.136:58531 192.168.164.136:9101
> ESTABLISHED 4492/java
> tcp6 0 0 192.168.164.136:9100 192.168.164.136:37493
> ESTABLISHED 3800/java
> tcp6 0 0 192.168.164.136:37490 192.168.164.136:9100
> ESTABLISHED 4297/java
> tcp6 0 0 192.168.164.136:9100 192.168.164.137:53796
> ESTABLISHED 3800/java
> tcp6 0 0 192.168.164.136:9100 192.168.164.136:37490
> ESTABLISHED 3800/java
> tcp6 0 0 192.168.164.136:9100 192.168.164.138:40077
> ESTABLISHED 3800/java
> tcp6 0 0 192.168.164.136:37493 192.168.164.136:9100
> ESTABLISHED 4000/java
> unix 2 [ ] STREAM CONNECTED 21015 4492/java
>
> unix 2 [ ] STREAM CONNECTED 20907 4297/java
>
> unix 2 [ ] STREAM CONNECTED 20204 4222/java
>
> unix 2 [ ] STREAM CONNECTED 19574 4000/java
>
> unix 2 [ ] STREAM CONNECTED 19293 3800/java
>
> root@ubuntu:~#
>
> this is on slaves 192.168.164.137
> root@ubuntu:/home/hadoop-0.20.2#
> root@ubuntu:/home/hadoop-0.20.2# netstat -nap|grep java
> tcp6 0 0 :::50060 :::* LISTEN
> 13130/java
> tcp6 0 0 127.0.0.1:40112 :::* LISTEN
> 13130/java
> tcp6 0 0 :::35703 :::* LISTEN
> 12949/java
> tcp6 0 0 :::50010 :::* LISTEN
> 12949/java
> tcp6 0 0 :::50075 :::* LISTEN
> 12949/java
> tcp6 0 0 :::50020 :::* LISTEN
> 12949/java
> tcp6 0 0 192.168.164.137:53796 192.168.164.136:9100
> ESTABLISHED 12949/java
> tcp6 0 0 192.168.164.137:43216 192.168.164.136:9101
> ESTABLISHED 13130/java
> unix 2 [ ] STREAM CONNECTED 51464 13130/java
>
> unix 2 [ ] STREAM CONNECTED 49229 12949/java
>
> root@ubuntu:/home/hadoop-0.20.2#
>
>
>
>
>
> -----邮件原件-----
> 发件人: [email protected]
> [mailto:[email protected]
> rg] 代表 Harsh J
> 发送时间: 2012年2月23日 17:31
> 收件人: [email protected]
> 主题: Re: TaskTracker Error
>
> Have you ensured your firewall is off on all instances, or appropriately
> configured if you need them?
>
> $ service iptables stop
>
> It is turned on by default on most distributions. I know CentOS6 turns it on
> by default, with some rules.
>
> On Thu, Feb 23, 2012 at 2:33 PM, tgh <[email protected]> wrote:
>> Hi
>>
>> I setup hadoop with hadoop 0.20.2
>>
>>
>>
>> I use three virtual machines on vmware,
>>
>> The three virtual machine could ssh with each other,
>>
>> ERROR rise , the tasktracker on slave 192.168.164.137 and
>> 192.168.164.138 cloud not connect to master, while the tasktracker on
>> 192.168.164.136 seems no error,
>>
>>
>>
>> Cloud you help me
>>
>>
>>
>> The conf file is set as follows,
>>
>> root@ubuntu:/home/hadoop-0.20.2/conf# cat masters
>>
>> 192.168.164.136
>>
>> root@ubuntu:/home/hadoop-0.20.2/conf# cat slaves
>>
>> 192.168.164.136
>>
>> 192.168.164.137
>>
>> 192.168.164.138
>>
>> root@ubuntu:/home/hadoop-0.20.2/conf#
>>
>> root@ubuntu:/home/hadoop-0.20.2/conf# cat core-site.xml
>>
>> <?xml version="1.0"?>
>>
>> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>>
>>
>>
>> <!-- Put site-specific property overrides in this file. -->
>>
>>
>>
>> <configuration>
>>
>> <property>
>>
>> <name>fs.default.name</name>
>>
>> <value>hdfs://192.168.164.136:9100</value>
>>
>> </property>
>>
>> <property>
>>
>> <name>hadoop.tmp.dir</name>
>>
>> <value>/home/hadoop-0.20.2/tmp/</value>
>>
>> </property>
>>
>> <property>
>>
>> <name>dfs.replication</name>
>>
>> <value>1</value>
>>
>> </property>
>>
>> <!-- property>
>>
>> <name>mapred.child.java.opts</name>
>>
>> <value>-Xmx128m</value>
>>
>> </property>
>>
>> <property>
>>
>> <name>dfs.block.size</name>
>>
>> <value>5120000</value>
>>
>> <description>The default block size for new files.</description>
>>
>> </property -->
>>
>> </configuration>
>>
>>
>>
>> root@ubuntu:/home/hadoop-0.20.2/conf# cat mapred-site.xml
>>
>> <?xml version="1.0"?>
>>
>> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>>
>>
>>
>> <!-- Put site-specific property overrides in this file. -->
>>
>>
>>
>> <configuration>
>>
>> <property>
>>
>> <name>mapred.job.tracker</name>
>>
>> <value>192.168.164.136:9101</value>
>>
>> </property>
>>
>> </configuration>
>>
>>
>>
>>
>>
>>
>>
>> now ERROR rise , the tasktracker on slave 192.168.164.137 and
>> 192.168.164.138 cloud not connect to master, while the tasktracker on
>> 192.168.164.136 seems no error,
>>
>>
>>
>> this is the log on 192.168.164.138,
>>
>> root@ubuntu:/home/hadoop-0.20.2/logs#
>>
>> root@ubuntu:/home/hadoop-0.20.2/logs# cat
>> hadoop-root-tasktracker-ubuntu.log
>>
>>
>> 2012-02-23 00:44:10,851 INFO org.apache.hadoop.mapred.TaskTracker:
>> STARTUP_MSG:
>>
>> /************************************************************
>>
>> STARTUP_MSG: Starting TaskTracker
>>
>> STARTUP_MSG: host = ubuntu/127.0.1.1
>>
>> STARTUP_MSG: args = []
>>
>> STARTUP_MSG: version = 0.20.2
>>
>> STARTUP_MSG: build =
>> https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20
>> -r 911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC 2010
>>
>> ************************************************************/
>>
>> 2012-02-23 00:44:16,080 INFO org.mortbay.log: Logging to
>> org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
>> org.mortbay.log.Slf4jLog
>>
>> 2012-02-23 00:44:16,199 INFO org.apache.hadoop.http.HttpServer: Port
>> returned by webServer.getConnectors()[0].getLocalPort() before open() is -1.
>> Opening the listener on 50060
>>
>> 2012-02-23 00:44:16,205 INFO org.apache.hadoop.http.HttpServer:
>> listener.getLocalPort() returned 50060
>> webServer.getConnectors()[0].getLocalPort() returned 50060
>>
>> 2012-02-23 00:44:16,205 INFO org.apache.hadoop.http.HttpServer: Jetty
>> bound to port 50060
>>
>> 2012-02-23 00:44:16,205 INFO org.mortbay.log: jetty-6.1.14
>>
>> 2012-02-23 00:45:08,741 INFO org.mortbay.log: Started
>> [email protected]:50060
>>
>> 2012-02-23 00:45:08,808 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
>> Initializing JVM Metrics with processName=TaskTracker, sessionId=
>>
>> 2012-02-23 00:45:08,848 INFO org.apache.hadoop.ipc.metrics.RpcMetrics:
>> Initializing RPC Metrics with hostName=TaskTracker, port=49689
>>
>> 2012-02-23 00:45:08,909 INFO org.apache.hadoop.ipc.Server: IPC Server
>> Responder: starting
>>
>> 2012-02-23 00:45:08,912 INFO org.apache.hadoop.mapred.TaskTracker:
>> TaskTracker up at: localhost/127.0.0.1:49689
>>
>> 2012-02-23 00:45:08,912 INFO org.apache.hadoop.mapred.TaskTracker:
>> Starting tracker tracker_ubuntu:localhost/127.0.0.1:49689
>>
>> 2012-02-23 00:45:08,911 INFO org.apache.hadoop.ipc.Server: IPC Server
>> listener on 49689: starting
>>
>> 2012-02-23 00:45:08,911 INFO org.apache.hadoop.ipc.Server: IPC Server
>> handler 0 on 49689: starting
>>
>> 2012-02-23 00:45:08,911 INFO org.apache.hadoop.ipc.Server: IPC Server
>> handler 1 on 49689: starting
>>
>> 2012-02-23 00:45:08,911 INFO org.apache.hadoop.ipc.Server: IPC Server
>> handler 2 on 49689: starting
>>
>> 2012-02-23 00:45:08,919 INFO org.apache.hadoop.ipc.Server: IPC Server
>> handler 3 on 49689: starting
>>
>> 2012-02-23 00:47:53,638 INFO org.apache.hadoop.mapred.TaskTracker:
>> Using MemoryCalculatorPlugin :
>> org.apache.hadoop.util.LinuxMemoryCalculatorPlugin@cafb56
>>
>> 2012-02-23 00:47:53,641 INFO org.apache.hadoop.mapred.TaskTracker:
>> Starting
>> thread: Map-events fetcher for all reduce tasks on
>> tracker_ubuntu:localhost/127.0.0.1:49689
>>
>> 2012-02-23 00:47:53,646 WARN org.apache.hadoop.mapred.TaskTracker:
>> TaskTracker's totalMemoryAllottedForTasks is -1. TaskMemoryManager is
>> disabled.
>>
>> 2012-02-23 00:47:53,647 INFO org.apache.hadoop.mapred.IndexCache:
>> IndexCache created with max memory = 10485760
>>
>> 2012-02-23 00:47:55,110 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 0
>> time(s).
>>
>> 2012-02-23 00:47:56,112 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 1
>> time(s).
>>
>> 2012-02-23 00:47:57,114 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 2
>> time(s).
>>
>> 2012-02-23 00:47:58,116 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 3
>> time(s).
>>
>> 2012-02-23 00:47:59,118 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 4
>> time(s).
>>
>> 2012-02-23 00:48:00,120 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 5
>> time(s).
>>
>> 2012-02-23 00:48:01,122 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 6
>> time(s).
>>
>> 2012-02-23 00:48:02,124 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 7
>> time(s).
>>
>> 2012-02-23 00:48:03,126 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 8
>> time(s).
>>
>> 2012-02-23 00:48:04,130 INFO org.apache.hadoop.ipc.Client: Retrying
>> connect to server: ubuntu.local/192.168.164.138:9100. Already tried 9
>> time(s).
>>
>> 2012-02-23 00:48:04,132 ERROR org.apache.hadoop.mapred.TaskTracker:
>> Caught
>> exception: java.net.ConnectException: Call to
>> ubuntu.local/192.168.164.138:9100 failed on connection exception:
>> java.net.ConnectException: Connection refused
>>
>> at org.apache.hadoop.ipc.Client.wrapException(Client.java:767)
>>
>> at org.apache.hadoop.ipc.Client.call(Client.java:743)
>>
>> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>>
>> at $Proxy5.getProtocolVersion(Unknown Source)
>>
>> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
>>
>> at
>> org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:106
>> )
>>
>> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:207)
>>
>> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:170)
>>
>> at
>> org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFi
>> l
>> eSyste
>> m.java:82)
>>
>> at
>> org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1378
>> )
>>
>> at
>> org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
>>
>> at
>> org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1390)
>>
>> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:196)
>>
>> at org.apache.hadoop.fs.Path.getFileSystem(Path.java:175)
>>
>> at
>> org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:10
>> 3
>> 3)
>>
>> at
>> org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:1720)
>>
>> at
>> org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:2833)
>>
>> Caused by: java.net.ConnectException: Connection refused
>>
>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>>
>> at
>> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592
>> )
>>
>> at
>> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.
>> java:2
>> 06)
>>
>> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
>>
>> at
>> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:30
>> 4
>> )
>>
>> at
>> org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:176)
>>
>> at org.apache.hadoop.ipc.Client.getConnection(Client.java:860)
>>
>> at org.apache.hadoop.ipc.Client.call(Client.java:720)
>>
>> ... 15 more
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
> --
> Harsh J
> Customer Ops. Engineer
> Cloudera | http://tiny.cloudera.com/about
>
>
