Re: Performance issues RGW (S3)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> 
> I am not sure adding more RGW's will increase the performance.

That was a tangent.

> To be clear, that means whatever.rgw.buckets.index ?
>>> No, sorry my bad. .index is 32 and .data is 256.
>> Oh, yeah. Does `ceph osd df` show you at the far right like 4-5 PG replicas on each OSD?  You want (IMHO) to end up with 100-200, keeping each pool's pg_num to a power of 2 ideally.
> 
> No, my RBD pool is larger. My average PG per OSD is round 60-70.

Ah.  Aim for 100-200 with spinners.

> 
>> Assuming all your pools span all OSDs, I suggest at a minimum 256 for .index and 8192 for .data, assuming you have only RGW pools.  And would be included to try 512 / 8192.  Assuming your  other minor pools are at 32, I'd bump .log and .non-ec to 128 or 256 as well.
>> If you have RBD or other pools colocated, those numbers would change.
>> ^ above assume disabling the autoscaler
> 
> I bumped my .data pool from 256 to 1024 and .index from 32 to 128.

Your index pool still only benefits from half of your OSDs with a value of 128.


> Also doubled the .non-e and .log pools. Performance wise I don't see any improvement. If I would see 10-20% improvement, I definitely would increase it to 512 / 8192.
> With 0.5MB object size I am still limited at about 150 up to 250 objects/s.
> 
> The disks aren't saturated. The wr await is mostly around 1ms and does not get higher when benchmarking with S3.

Trust iostat about as far as you can throw it.


> 
> Other suggestions, or does anyone else has suggestions?
> 
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx



[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux