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HDFS, mail # user - namenode directory failure question


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Re: namenode directory failure question
Bertrand Dechoux 2013-03-18, 15:28
You may want to check this JIRA:
https://issues.apache.org/jira/browse/HADOOP-4885

It won't help you right know but it could allow you next time to avoid
restarting.

Regards

Bertrand

On Mon, Mar 18, 2013 at 3:52 PM, Brennon Church <[EMAIL PROTECTED]> wrote:

> Hello all,
>
> We have our dfs.name.dir configured to write to two local and one NFS
> directories.  The NFS server in question had to be restarted a couple days
> back and that copy of the namenode data fell behind as a result.  As I
> understand it, restarting hadoop will take the most recent copy of the
> namenode data, in this case one of the two local copies, and write that to
> all three locations going forward.  So that solves the problem.
>
> My question is this, is there a way to get the NFS copy of the data back
> in sync without having to shut down and restart the namenode? I'd prefer to
> not take an outage if I can help it.
>
> Thanks.
>
> --Brennon
>
>