M$> ssh [EMAIL PROTECTED] is working without asking password.....
Richard Yang-3 wrote: > > Hello, > > It is nice to know the issue occurring consistently. > According to the log file, the namenode/master (M) has problem reaching to > datanode/slave (S) auriga. Does ssh from M to S work? i.e. does > M$> ssh [EMAIL PROTECTED] > directly return a command prompt on S as user jaya? If not, at least, we > know there is some issue on network side. One like Arun indicating, dns > service is not functioning normally. > One simple (coward) solution is to use only ip addresses. This way could > simplify the setup configurations. > > > Best Regards > > Richard Yang > [EMAIL PROTECTED] > [EMAIL PROTECTED] > > > > -----Original Message----- > From: Arun C Murthy [mailto:[EMAIL PROTECTED] > Sent: Friday, March 23, 2007 3:33 AM > To: [email protected] > Subject: Re: System is hanging while executing bin/start-all.sh and > bin/stop-all.sh > > jaylac wrote: >> 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 >> >> 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) >> > ============================================================================ > = >> >> 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) > > It looks like a dns issue; please check with your sysadmin. > > What does > $ host auriga > say? > > Arun > > > > -- View this message in context: http://www.nabble.com/System-is-hanging-while-executing-bin-start-all.sh-and-bin-stop-all.sh-tf3451821.html#a9686857 Sent from the Hadoop Users mailing list archive at Nabble.com.
