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From Oleg Dulin <oleg.du...@gmail.com>
Subject Re: 1.1.11: system keyspace is filling up
Date Tue, 05 Nov 2013 12:59:02 GMT
What happens if they are not being successfully delivered ? Will they 
eventually TTL-out ?

Also, do I need to truncate hints on every node or is it replicated ?

Oleg

On 2013-11-04 21:34:55 +0000, Robert Coli said:

> On Mon, Nov 4, 2013 at 11:34 AM, Oleg Dulin <oleg.dulin@gmail.com> wrote:
> I have a dual DC setup, 4 nodes, RF=4 in each.
> 
> The one that is used as primary has its system keyspace fill up with 
> 200 gigs of data, majority of which is hints.
> 
> Why does this happen ?
> 
> How can I clean it up ?
> 
> If you have this many hints, you probably have flapping / frequent 
> network partition, or very overloaded nodes. If you compare the number 
> of hints to the number of dropped messages, that would be informative. 
> If you're hinting because you're dropping, increase capacity. If you're 
> hinting because of partition, figure out why there's so much partition.
> 
> WRT cleaning up hints, they will automatically be cleaned up 
> eventually, as long as they are successfully being delivered. If you 
> need to manually clean them up you can truncate system.hints keyspace.
> 
> =Rob
>  



-- 
Regards,
Oleg Dulin
http://www.olegdulin.com
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