Re: RGW Garbage Collector

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Hi Manuel,

rgw_gc_obj_min_wait -- yes, this is how you control how long rgw waits
before removing the stripes of deleted objects

the following are more gc performance and proportion of available iops:
rgw_gc_processor_max_time -- controls how long gc runs once scheduled;
 a large value might be 3600
rgw_gc_processor_period -- sets the gc cycle;  smaller is more frequent

If you want to make gc more aggressive when it is running, set the
following (can be increased), which more than doubles the :

rgw_gc_max_concurrent_io = 20
rgw_gc_max_trim_chunk = 32

If you want to increase gc fraction of total rgw i/o, increase these
(mostly, concurrent_io).

regards,

Matt

On Sun, May 24, 2020 at 4:02 PM EDH - Manuel Rios
<mriosfer@xxxxxxxxxxxxxxxx> wrote:
>
> Hi,
>
> Im looking for any experience optimizing garbage collector with the next configs:
>
> global                                  advanced rgw_gc_obj_min_wait
> global                                  advanced rgw_gc_processor_max_time
> global                                  advanced rgw_gc_processor_period
>
> By default gc expire objects within 2 hours, we're looking to define expire in 10 minutes as our S3 cluster got heavy uploads and deletes.
>
> Are those params usable? For us doesn't have sense store delete objects 2 hours in a gc.
>
> Regards
> Manuel
>
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>


-- 

Matt Benjamin
Red Hat, Inc.
315 West Huron Street, Suite 140A
Ann Arbor, Michigan 48103

http://www.redhat.com/en/technologies/storage

tel.  734-821-5101
fax.  734-769-8938
cel.  734-216-5309
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