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From Ryan Rawson <ryano...@gmail.com>
Subject Re: stop-hbase.sh bug or feature?
Date Fri, 04 Mar 2011 00:17:53 GMT
with multiple masters, shutting down a master should NOT cause a
cluster death!

I ran in to this once, sucked.

I have previously commented, I thought we had removed the 'master exit
= cluster death' but I'm not sure.

-ryan

On Thu, Mar 3, 2011 at 4:14 PM, Ted Dunning <tdunning@maprtech.com> wrote:
> I think that the proposal on the table is to actually simplify things a bit
> by making the shutdown of the master
> not cause the shutdown of the regions.  Less coupling is simpler.
>
> On Thu, Mar 3, 2011 at 2:47 PM, M. C. Srivas <mcsrivas@gmail.com> wrote:
>
>> To tell you the truth, I really like the simplicity that exists today in
>> launching a hbase cluster
>>   - start the master somewhere
>>   - start the RS's wherever you like
>>
>> And it just works! Very nice.
>>
>> Perhaps adding an acl on the master in is order to prevent the unexpected
>> shutdown (or extra master, or other funky stuff from accidentally
>> happening).
>>
>> Making it more complex to start/shutdown doesn't really help. Many of us
>> will then write a wrapper script to make it simple again, and we are back
>> to
>> square one.
>>
>>
>>
>> On Wed, Mar 2, 2011 at 8:57 PM, Stack <stack@duboce.net> wrote:
>>
>> > On Wed, Mar 2, 2011 at 5:23 PM, Bill Graham <billgraham@gmail.com>
>> wrote:
>> > > So the question is, is this a bug or a feature? If it's a feature it
>> > > seems like an incredibly dangerous one. Once our live cluster is
>> > > running, those configs will also be needed on the client so really bad
>> > > things could happen by mistake.
>> > >
>> >
>> > One time it might have been thought a 'feature' but now its a bug I'd
>> > say given the above.  I opened
>> > https://issues.apache.org/jira/browse/HBASE-3590 using this thread as
>> > context.
>> >
>> > St.Ack
>> >
>>
>

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