-Hodoop namenode startup problem
edward choi 2010-08-05, 04:09
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?