FAQ
Hey all

If I have 1 NN , can I transport it's data (copy) and start another NN with
it? it will bring me very close to creating a failover and failback
mechanisem.

Thanks!

Vale et me ama
Yossi

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  • Lohit at Nov 13, 2008 at 5:33 pm
    Hi Yossi,

    Yes you can start NN on different node using dfs.data.dir files.
    set your dfs.data.dir config variable to point to this directory and you should be able to start NN on different node.
    Try to search for previous discussions on this list regarding failover, lot of email and ideas have been recorded.

    Thanks,
    Lohit



    ----- Original Message ----
    From: Yossi Ittach <yossale@gmail.com>
    To: core-user@hadoop.apache.org
    Sent: Thursday, November 13, 2008 8:43:00 AM
    Subject: Can you load one NN data (fsimage , edits..) to another NN?

    Hey all

    If I have 1 NN , can I transport it's data (copy) and start another NN with
    it? it will bring me very close to creating a failover and failback
    mechanisem.

    Thanks!

    Vale et me ama
    Yossi

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groupcommon-user @
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postedNov 13, '08 at 4:43p
activeNov 13, '08 at 5:33p
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websitehadoop.apache.org...
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Lohit: 1 post Yossi Ittach: 1 post

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