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Hadoop, mail # user - Hodoop namenode startup problem


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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?