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From Jonathan Haddad <...@jonhaddad.com>
Subject Re: To Repair or Not to Repair
Date Thu, 14 Mar 2019 20:55:01 GMT
My coworker Alex (from The Last Pickle) wrote an in depth blog post on
TWCS.  We recommend not running repair on tables that use TWCS.

http://thelastpickle.com/blog/2016/12/08/TWCS-part1.html

It's enough of a problem that we added a feature into Reaper to
auto-blacklist TWCS / DTCS tables from being repaired, we wrote about it
here: http://thelastpickle.com/blog/2019/02/15/reaper-1_4-released.html

Hope this helps!
Jon

On Fri, Mar 15, 2019 at 9:48 AM Nick Hatfield <nick.hatfield@metricly.com>
wrote:

> It seems that running a repair works really well, quickly and efficiently
> when repairing a column family that does not use TWCS. Has anyone else had
> a similar experience? Wondering if running TWCS is doing more harm than
> good as it chews up a lot of cpu and for extended periods of time in
> comparison to CF’s with a compaction strategy of STCS
>
>
>
>
>
> Thanks,
>


-- 
Jon Haddad
http://www.rustyrazorblade.com
twitter: rustyrazorblade

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