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From Patrick Schless <patrick.schl...@gmail.com>
Subject Re: How to recover data from hadoop/hbase cluster
Date Fri, 09 Aug 2013 19:31:28 GMT
Are you missing data? Replication/recovery of blocks is automatic, and
there isn't a manual process to it.

FWIW, for something like changing the hard drive configs on the box, it
would be a better idea to unbalance the node ahead of time and then
rebalance it.

On Fri, Aug 9, 2013 at 7:18 AM, oc tsdb <oc.tsdb@gmail.com> wrote:

> Hi,
> I am running a hadoop/hbase cluster with 6 nodes (1 name node, 5 data
> nodes).
> Two days back two of the machines went down due to some kernel crash.
> These machines were rebooted after some time.
> Meanwhile the cluster became unresponsive.
> Today, to create disk space and let other application services continue in
> cluster, we had to wipe out hadoop data directory on one of the data nodes,
> thinking that we should still be able to recover cluster as the replication
> count was 3.
> Could you please point me to any procedure to recover data in my cluster.
> Thanks in advance.
> Regards,
> OC.

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