Re: Hodoop namenode startup problem
I've fixed the problem. The reason namenode won't start was that I accidentally started the cluster with root account. This somehow changed the ownership of some hadoop-related files(ex: log files, and hadoop.tmp.dir/dfs/name/current/edits) from hadoop:hadoop to root:root. After I fixed the ownership issue, everything went fine. Thanks for the concern. 2010/8/5 Harsh J qwertyman...@gmail.com Could you check the NameNode/SecondaryNameNode logs and try to find the exact issue? Post the errors (if) it contains here, so we can try to help you better. On Thu, Aug 5, 2010 at 9:39 AM, edward choi mp2...@gmail.com wrote: I am currently stuck with hadoop namenode that won't start. When I type start-all.sh, everything prints out fine. But when I type jps, only JobTracker is activated. When this happens, I usually format the namenode. But the problem is that there are 500gigs of date in HDFS. So I really want to save the data. Can anyone give help please? -- Harsh J www.harshj.com
Hodoop namenode startup problem
I am currently stuck with hadoop namenode that won't start. When I type start-all.sh, everything prints out fine. But when I type jps, only JobTracker is activated. When this happens, I usually format the namenode. But the problem is that there are 500gigs of date in HDFS. So I really want to save the data. Can anyone give help please?
Re: Hodoop namenode startup problem
Could you check the NameNode/SecondaryNameNode logs and try to find the exact issue? Post the errors (if) it contains here, so we can try to help you better. On Thu, Aug 5, 2010 at 9:39 AM, edward choi mp2...@gmail.com wrote: I am currently stuck with hadoop namenode that won't start. When I type start-all.sh, everything prints out fine. But when I type jps, only JobTracker is activated. When this happens, I usually format the namenode. But the problem is that there are 500gigs of date in HDFS. So I really want to save the data. Can anyone give help please? -- Harsh J www.harshj.com
