Re: New pool created with 2048 pg_num not executed

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Then I'd suggest to wait until the backfilling is done and then report back if the PGs are still not created. I don't have information about the ML admin, sorry.

Zitat von Martin Buss <mbuss7004@xxxxxxxxx>:

that cephfs_data has been autoscaling while filling, the mismatched numbers are a result of that autoscaling

the cluster status is WARN as there is still some old stuff backfilling on cephfs_data

The issue is the newly created pool 9 cfs_data, which is stuck at 1152 pg_num

ps: can you help me to get in touch with the list admin so I can get that post including private info deleted

On 14.12.22 15:41, Eugen Block wrote:
I'm wondering why the cephfs_data pool has mismatching pg_num and pgp_num:

pool 1 'cephfs_data' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 187 pgp_num 59 autoscale_mode off

Does disabling the autoscaler leave it like that when you disable it in the middle of scaling? What is the current 'ceph status'?


Zitat von Martin Buss <mbuss7004@xxxxxxxxx>:

Hi Eugen,

thanks, sure, below:

pg_num stuck at 1152 and pgp_num stuck at 1024

Regards,

Martin

ceph config set global mon_max_pg_per_osd 400

ceph osd pool create cfs_data 2048 2048 --pg_num_min 2048
pool 'cfs_data' created

pool 1 'cephfs_data' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 187 pgp_num 59 autoscale_mode off last_change 3099 lfor 0/3089/3096 flags hashpspool,bulk stripe_width 0 target_size_ratio 1 application cephfs pool 2 'cephfs_metadata' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 16 pgp_num 16 autoscale_mode off last_change 2942 lfor 0/0/123 flags hashpspool stripe_width 0 pg_autoscale_bias 4 pg_num_min 16 recovery_priority 5 application cephfs pool 3 '.mgr' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode off last_change 2943 flags hashpspool stripe_width 0 pg_num_max 32 pg_num_min 1 application mgr pool 9 'cfs_data' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 1152 pgp_num 1024 pg_num_target 2048 pgp_num_target 2048 autoscale_mode off last_change 3198 lfor 0/0/3198 flags hashpspool stripe_width 0 pg_num_min 2048



On 14.12.22 15:10, Eugen Block wrote:
Hi,

are there already existing pools in the cluster? Can you share your 'ceph osd df tree' as well as 'ceph osd pool ls detail'? It sounds like ceph is trying to stay within the limit of mon_max_pg_per_osd (default 250).

Regards,
Eugen

Zitat von Martin Buss <mbuss7004@xxxxxxxxx>:

Hi,

on quincy, I created a new pool

ceph osd pool create cfs_data 2048 2048

6 hosts 71 osds

autoscaler is off; I find it kind of strange that the pool is created with pg_num 1152 and pgp_num 1024, mentioning the 2048 as the new target. I cannot manage to actually make this pool contain 2048 pg_num and 2048 pgp_num.

What config option am I missing that does not allow me to grow the pool to 2048? Although I specified pg_num and pgp_num be the same, it is not.

Please some help and guidance.

Thank you,

Martin
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