Well, I've updated version of hadoop to 0.13. The exception is not thrown anymore but the problem still exists. Datanode on the slave is shown to be running, but it does not log anything nor keep any data within itself. If "slaves" file contains both localhost (master) and slave's IP, then "hadoop fs -put ..." command puts information only in the master's datanode. If "slaves" file contains only slave's IP then I get message like following: Failed to create file ... on client 127.0.0.1 because this cluster has no datanodes. It seems as if I missed to configurate something in hadoop but I don't know what. Help please!
-----Original Message----- From: Dhruba Borthakur [mailto:[EMAIL PROTECTED] Sent: Thursday, June 07, 2007 8:46 PM To: [email protected] Subject: RE: Why datanode does not work properly on slave? This Arithmetic Exception that you are seeing might be related to the bug http://issues.apache.org/jira/browse/HADOOP-1122. This bug has been fixed in release 0.13. Thanks, Dhruba -----Original Message----- From: Ilya Vishnevsky [mailto:[EMAIL PROTECTED] Sent: Thursday, June 07, 2007 5:52 AM To: [email protected] Subject: RE: Why datanode does not work properly on slave? I've just changed dfs.replication property in the hadoop-site.xml from 1 to 2. Now I get "ArithmeticException: / by" zero when try to put something into dfs. Also I want to say that both nodes are on Windows. -----Original Message----- From: Ilya Vishnevsky [mailto:[EMAIL PROTECTED] Sent: Thursday, June 07, 2007 4:33 PM To: [EMAIL PROTECTED] Subject: Why datanode does not work properly on slave? Hello! I'm deploying Nutch on two computers. When I run start-all.sh script all goes good but data node on slave computer does not log anything. All other parts of Hadoop (namenode, jobtracker, both tasktrackers and datanode on master) log their information properly. Also, when I put some files from local file system into hadoop fs they are put only into master's data folder. Slave's data folder is empty. At the same time when I run stop-all.sh script I get message, that slave's datanode is being stopped. It means that it has been running before. Do you know what may cause this problem?
