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From Jonathan Haddad <>
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.

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

Hope this helps!

On Fri, Mar 15, 2019 at 9:48 AM Nick Hatfield <>

> 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
twitter: rustyrazorblade

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