That's been already increased to 4.

Istvan Szabo
Senior Infrastructure Engineer
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Agoda Services Co., Ltd.
e: [email protected]
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-----Original Message-----
From: Eugen Block <[email protected]> 
Sent: Wednesday, September 22, 2021 2:51 PM
To: [email protected]
Subject: [ceph-users] Re: Modify pgp number after pg_num increased

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Hi,

IIRC in a different thread you pasted your max-backfill config and it was the 
lowest possible value (1), right? That's why your backfill is slow.


Zitat von "Szabo, Istvan (Agoda)" <[email protected]>:

> Hi,
>
> By default in the newer versions of ceph when you increase the pg_num 
> the cluster will start to increase the pgp_num slowly up to the value 
> of the pg_num.
> I've increased the ec-code data pool from 32 to 128 but 1 node has 
> been added to the cluster and it's very slow.
>
> pool 28 'hkg.rgw.buckets.data' erasure profile data-ec size 6 min_size 
> 5 crush_rule 1 object_hash rjenkins pg_num 128 pgp_num 55 
> pgp_num_target 128 autoscale_mode warn last_change 16443 lfor
> 0/0/14828 fl
> ags hashpspool stripe_width 16384 application rgw
>
> At the moment there has been done 55 out of the 128 pg.
> Is it safe to set the pgp_num at this stage to 64 and wait until the 
> data will be rebalanced to the newly added node?
>
> Thank you
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