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From Jerry He <jerry...@gmail.com>
Subject Re: Draining mode and graceful decommissioning
Date Sun, 01 Jan 2017 20:43:36 GMT
Please see https://issues.apache.org/jira/browse/HBASE-16010 as well.
Nice testing you did.  zk_dump not dumping draining nodes is probably a
small bug.
Yes, we need to update/improve the related scripts.



On Sun, Jan 1, 2017 at 6:56 AM, Lars George <lars.george@gmail.com> wrote:

> Hi,
> This is along the lines of https://issues.apache.org/
> jira/browse/HBASE-10367
> Since we have draining mode, should we not in the meantime at least
> replace the balancer stop/start step in graceful_stop.sh with simply
> setting the draining mode for the server? This would less impact any
> other balancer work.
> BTW, I tried on 1.3 to figure the state of the balancer handling the
> draining mode flag for a node, and it seems to do the right thing (see
> https://www.evernote.com/l/ACHWQmzwekZN9LIVcInLjviefhwngwuhqJE) - are
> there any concerns that it does not? Enis (and Stack in the original
> JIRA) mentioned something about it only being implemented in one part,
> but not the other?
> Cheers,
> Lars

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