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From Branton Davis <branton.da...@spanning.com>
Subject Re: Cassandra nodes reduce disks per node
Date Thu, 18 Feb 2016 21:12:24 GMT
Alain, thanks for sharing!  I'm confused why you do so many repetitive
rsyncs.  Just being cautious or is there another reason?  Also, why do you
have --delete-before when you're copying data to a temp (assumed empty)
directory?

On Thu, Feb 18, 2016 at 4:12 AM, Alain RODRIGUEZ <arodrime@gmail.com> wrote:

> I did the process a few weeks ago and ended up writing a runbook and a
> script. I have anonymised and share it fwiw.
>
> https://github.com/arodrime/cassandra-tools/tree/master/remove_disk
>
> It is basic bash. I tried to have the shortest down time possible, making
> this a bit more complex, but it allows you to do a lot in parallel and just
> do a fast operation sequentially, reducing overall operation time.
>
> This worked fine for me, yet I might have make some errors while making it
> configurable though variables. Be sure to be around if you decide to run
> this. Also I automated this more by using knife (Chef), I hate to repeat
> ops, this is something you might want to consider.
>
> Hope this is useful,
>
> C*heers,
> -----------------
> Alain Rodriguez
> France
>
> The Last Pickle
> http://www.thelastpickle.com
>
> 2016-02-18 8:28 GMT+01:00 Anishek Agarwal <anishek@gmail.com>:
>
>> Hey Branton,
>>
>> Please do let us know if you face any problems  doing this.
>>
>> Thanks
>> anishek
>>
>> On Thu, Feb 18, 2016 at 3:33 AM, Branton Davis <
>> branton.davis@spanning.com> wrote:
>>
>>> We're about to do the same thing.  It shouldn't be necessary to shut
>>> down the entire cluster, right?
>>>
>>> On Wed, Feb 17, 2016 at 12:45 PM, Robert Coli <rcoli@eventbrite.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> On Tue, Feb 16, 2016 at 11:29 PM, Anishek Agarwal <anishek@gmail.com>
>>>> wrote:
>>>>>
>>>>> To accomplish this can I just copy the data from disk1 to disk2 with
>>>>> in the relevant cassandra home location folders, change the cassanda.yaml
>>>>> configuration and restart the node. before starting i will shutdown the
>>>>> cluster.
>>>>>
>>>>
>>>> Yes.
>>>>
>>>> =Rob
>>>>
>>>>
>>>
>>>
>>
>

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