hi richard
My system is hanging always.. this is not a rare event for me.
I cant trace out what i the problem.... please help me...
Following are log files...
Here auriga is the name of thre slave node.
In the slave node
==========================================================================
hadoop-jaya-tasktracker-auriga.log file
----------------------------------------------------------------
007-03-23 14:37:54,435 INFO org.mortbay.util.Credential: Checking Resource
aliases
2007-03-23 14:37:54,558 INFO org.mortbay.http.HttpServer: Version
Jetty/5.1.4
2007-03-23 14:37:54,570 INFO org.mortbay.util.Container: Started
HttpContext[/static,/static]
2007-03-23 14:37:54,570 INFO org.mortbay.util.Container: Started
HttpContext[/logs,/logs]
2007-03-23 14:37:55,949 INFO org.mortbay.util.Container: Started
[EMAIL PROTECTED]
2007-03-23 14:37:56,047 INFO org.mortbay.util.Container: Started
WebApplicationContext[/,/]
2007-03-23 14:37:56,069 INFO org.mortbay.http.SocketListener: Started
SocketListener on 0.0.0.0:50060
2007-03-23 14:37:56,069 INFO org.mortbay.util.Container: Started
[EMAIL PROTECTED]
2007-03-23 14:37:56,108 ERROR org.apache.hadoop.mapred.TaskTracker: Can not
start task trackerbecause java.net.UnknownHostException: auriga: auriga
at java.net.InetAddress.getLocalHost(InetAddress.java:1315)
at org.apache.hadoop.net.DNS.getDefaultHost(DNS.java:169)
at
org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:247)
at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:456)
at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:1499)
=============================================================================
hadoop-jaya-datanode-auriga.log file
---------------------------------------------------------
2007-03-23 14:37:54,248 ERROR org.apache.hadoop.dfs.DataNode:
java.net.UnknownHostException: auriga: auriga
at java.net.InetAddress.getLocalHost(InetAddress.java:1315)
at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:178)
at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:1133)
at org.apache.hadoop.dfs.DataNode.run(DataNode.java:1061)
at org.apache.hadoop.dfs.DataNode.runAndWait(DataNode.java:1091)
at org.apache.hadoop.dfs.DataNode.main(DataNode.java:1255)
Hello Jaya,
It would be useful to check the namenode and datanode log file. From my
past experiences, sometimes I would get java.io... kind of exceptions. I
think it could be relating to me using vmware. Though sometimes,
namenode/master simply could not connect to datanode/slaves (showing as some
ipc error message). I did the same thing to start the namenode/master and
the cluster is up and healthy again. Too bad this phenomenon is not
consistent so I couldn't pin point how or why this happened. Would you let
me know if you find the cause? Thanks.
Best Regards
Richard Yang
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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