Did you try 'telnet 198.55.35.229 54310' from this datanode? The log
show that it is not able to connect to "master:54310". ssh from datanode
does not matter.
Raghu.
asif md wrote:
I can SSH both ways .i.e. From master to slave and slave to master.
the datanode is getting intialized at master but the log at slave looks like
this
************************************************************/
2009-06-04 15:20:06,066 INFO org.apache.hadoop.dfs.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = ************
STARTUP_MSG: args = []
STARTUP_MSG: version = 0.18.3
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r 736250;
compiled by 'ndaley' on Thu Jan 22 23:12:08 UTC 2009
************************************************************/
2009-06-04 15:20:08,826 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 0 time(s).
2009-06-04 15:20:09,829 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 1 time(s).
2009-06-04 15:20:10,831 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 2 time(s).
2009-06-04 15:20:11,832 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 3 time(s).
2009-06-04 15:20:12,834 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 4 time(s).
2009-06-04 15:20:13,837 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 5 time(s).
2009-06-04 15:20:14,840 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 6 time(s).
2009-06-04 15:20:15,841 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 7 time(s).
2009-06-04 15:20:16,844 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 8 time(s).
2009-06-04 15:20:17,847 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/198.55.35.229:54310. Already tried 9 time(s).
2009-06-04 15:20:17,873 ERROR org.apache.hadoop.dfs.DataNode:
java.io.IOException: Call to master/198.55.35.229:54310 failed on local
exception: java.net.NoRouteToHostException: No route to host
at org.apache.hadoop.ipc.Client.wrapException(Client.java:751)
at org.apache.hadoop.ipc.Client.call(Client.java:719)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216)
at org.apache.hadoop.dfs.$Proxy4.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:348)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:335)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:372)
at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:309)
at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:286)
at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:277)
at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:223)
at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:3071)
at
org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:3026)
at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:3034)
at org.apache.hadoop.dfs.DataNode.main(DataNode.java:3156)
Caused by: java.net.NoRouteToHostException: No route to host
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:100)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:301)
at org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:178)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:820)
at org.apache.hadoop.ipc.Client.call(Client.java:705)
... 13 more
2009-06-04 15:20:17,874 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at *******
**********************************************************************************88
Please suggest.
Asif.
On Thu, Jun 4, 2009 at 4:15 PM, asif md <[email protected]> wrote:
@Ravi
thanx ravi .. i'm now using my a definded tmp dir so the second issue is
resolved.
But i have ssh keys tht have passwords. But i am able to ssh to the slave
and master from the master.
should i be able to do tht from the slave as well.
@ALL
Any suggestions.
Thanx
Asif.
On Thu, Jun 4, 2009 at 3:17 PM, Ravi Phulari <[email protected]>wrote:
From logs looks like your Hadoop cluster is facing two different issues
.
At Slave
1. exception: java.net.NoRouteToHostException: No route to host in
your logs
Diagnosis - One of your nodes cannot be reached correctly. Make sure you
can ssh to your master and slave and passwordless ssh keys are set .
At master
2. java.io.IOException: Incompatible namespaceIDs in
Diagnosis - Your Hadoop namespaceID became corrupted. Unfortunately the
easiest thing to do reformat the HDFS
As you have not configured hadoop.tmp.dir or data.dir by default Hadoop
will you /tmp as directory for temporary files , log files and for data dir
which is not good practice .
I would suggest you using some tmpForHadoop dir somewhere else than /tmp
.
-
Ravi
On 6/4/09 12:39 PM, "asif md" <[email protected]> wrote:
Hello all,
I'm trying to setup a two node cluster < remote > using the following
tutorials
{ NOTE : i'm ignoring the tmp directory property in hadoop-site.xml
suggested by Michael }
Running Hadoop On Ubuntu Linux (Single-Node Cluster) - Michael G.
Noll<
http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Single-Node_Cluster%29
Running Hadoop On Ubuntu Linux (Multi-Node Cluster) - Michael G.
Noll<
http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29
I get the following logs when try to run $HADOOP_HOME/bin/start-dfs.sh at
master.
***************************************************************************************************
AT MASTER :
-----------------
2009-06-04 12:16:30,864 INFO org.apache.hadoop.dfs.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = *******
STARTUP_MSG: args = []
STARTUP_MSG: version = 0.18.3
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r
736250;
compiled by 'ndaley' on Thu Jan 22 23:12:08 UTC 2009
************************************************************/
2009-06-04 12:16:31,071 ERROR org.apache.hadoop.dfs.DataNode:
java.io.IOException: Incompatible namespaceIDs in /tmp/*****/dfs/data:
namenode namespaceID = 34351921; datanode namespaceID = 539590337
at
org.apache.hadoop.dfs.DataStorage.doTransition(DataStorage.java:226)
at
org.apache.hadoop.dfs.DataStorage.recoverTransitionRead(DataStorage.java:141)
at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:306)
at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:223)
at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:3071)
at
org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:3026)
at
org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:3034)
at org.apache.hadoop.dfs.DataNode.main(DataNode.java:3156)
2009-06-04 12:16:31,071 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
/************************************************************
*******************************************************************************************************
AT SLAVE :
----------------
2009-06-04 12:16:28,203 INFO org.apache.hadoop.dfs.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = ****************
STARTUP_MSG: args = []
STARTUP_MSG: version = 0.18.3
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r
736250;
compiled by 'ndaley' on Thu Jan 22 23:12:08 UTC 2009
************************************************************/
2009-06-04 12:16:32,175 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 0 time(s).
2009-06-04 12:16:33,178 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 1 time(s).
2009-06-04 12:16:34,181 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 2 time(s).
2009-06-04 12:16:35,184 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 3 time(s).
2009-06-04 12:16:36,187 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 4 time(s).
2009-06-04 12:16:37,190 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 5 time(s).
2009-06-04 12:16:38,193 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 6 time(s).
2009-06-04 12:16:39,196 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 7 time(s).
2009-06-04 12:16:40,198 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 8 time(s).
2009-06-04 12:16:41,200 INFO org.apache.hadoop.ipc.Client: Retrying
connect
to server: master/198.55.35.229:54310. Already tried 9 time(s).
2009-06-04 12:16:41,222 ERROR org.apache.hadoop.dfs.DataNode:
java.io.IOException: Call to master/198.55.35.229:54310 failed on local
exception: java.net.NoRouteToHostException: No route to host
at org.apache.hadoop.ipc.Client.wrapException(Client.java:751)
at org.apache.hadoop.ipc.Client.call(Client.java:719)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216)
at org.apache.hadoop.dfs.$Proxy4.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:348)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:335)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:372)
at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:309)
at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:286)
at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:277)
at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:223)
at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:3071)
at
org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:3026)
at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:3034)
at org.apache.hadoop.dfs.DataNode.main(DataNode.java:3156)
Caused by: java.net.NoRouteToHostException: No route to host
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:100)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:301)
at
org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:178)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:820)
at org.apache.hadoop.ipc.Client.call(Client.java:705)
... 13 more
2009-06-04 12:16:41,222 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at
opencirrus-1262.hpl.hp.com/198.55.36.243
************************************************************/
PLEASE COMMENT.
Thanks.
Asif.
Ravi
--
