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From Shahab Yunus <shahab.yu...@gmail.com>
Subject Re: so the master just died... now what?
Date Tue, 03 Sep 2013 21:01:35 GMT
Keep in mind that there are 2 flavors of Hadoop: the older one without HA
and the  new one with it. Anyway, have you seen the following?

http://wiki.apache.org/hadoop/NameNodeFailover
http://www.youtube.com/watch?v=Ln1GMkQvP9w
http://docs.hortonworks.com/HDPDocuments/HDP1/HDP-1.3.0/bk_hdp1-system-admin-guide/content/sysadminguides_ha_chap2_5_5.html

Regards,
Shahab


On Tue, Sep 3, 2013 at 4:54 PM, Tomasz Chmielewski <mangoo@wpkg.org> wrote:

> Just starting with hadoop and hbase, and couldn't find specific answers
> in official documentation (unless I've missed the obvious).
>
>
> Assuming I have three hadoop servers: h1, h2 and h3, with h1 being a
> master+slave - what is a recovery scenario if the master server, h1,
> died and is beyond repair (burned with all disks and got flooded)?
>
> Do I just edit conf/masters file on any of the remaining slaves (say,
> h2), make it a master, and start the NameNode and JobTracker there?
>
> Can anyone point me to relevant documentation?
>
>
> --
> Tomasz Chmielewski
> http://wpkg.org
>
>

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