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From Benjamin Roth <benjamin.r...@jaumo.com>
Subject Re: repair -pr in crontab
Date Fri, 25 Nov 2016 10:45:38 GMT
It is absolutely ok to run parallel repair -pr, if
1. the ranges do not overlap
2. if your cluster can handle the pressure - do not underestimate that.

In reaper you can tweak some settings like repair intensity to give your
cluster some time to breath between repair slices.

2016-11-25 11:34 GMT+01:00 Artur Siekielski <artc@vhex.net>:

> Hi,
> yes, I read about how the repairing works, but the docs/blog posts lack
> practical recommendations and "best practices". For example, I found people
> having issues with running "repair -pr" simultaneously on all nodes, but it
> isn't clear it shouldn't be allowed.
>
> In the end I implemented rolling, sequential "repair -pr" run on all nodes
> (it's pretty easy to implement when you have Salt/Ansible, or even ssh).
>
>
> On 11/25/2016 07:30 AM, wxn002@zjqunshuo.com wrote:
>
>> Hi Artur,
>> When I asked similar questions, someone addressed me to the below links
>> and they are helpful.
>>
>> See http://www.datastax.com/dev/blog/repair-in-cassandra
>> https://lostechies.com/ryansvihla/2015/09/25/cassandras-
>> repair-should-be-called-required-maintenance/
>> https://cassandra-zone.com/understanding-repairs/
>>
>> Cheers,
>> -Simon
>>
>>
>


-- 
Benjamin Roth
Prokurist

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