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 <man...@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 > >
