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From Stack <st...@duboce.net>
Subject Re: Question about dead datanode
Date Wed, 19 Feb 2014 04:48:34 GMT
On Sat, Feb 15, 2014 at 8:01 PM, Jack Levin <magnito@gmail.com> wrote:

> Looks like I patched it in DFSClient.java, here is the patch:
> https://gist.github.com/anonymous/9028934
> ....

> I moved 'deadNodes' list outside as global field that is accessible by
> all running threads, so at any point datanode does go down, each
> thread is basically informed that the datanode _is_ down.

We need to add something like this to current versions of DFSClient, a
global status, so each stream does not have to discover bad DNs for itself.

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