Re: Delete objects on large bucket very slow

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--max-concurrent-ios helps with deletion speed, there's also a memory
leak during deletion which is being fixed here:
https://github.com/ceph/ceph/pull/30174

Paul

-- 
Paul Emmerich

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On Thu, Sep 12, 2019 at 6:25 AM tuan dung <dungdt1903@xxxxxxxxx> wrote:
>
> Dear Ceph team,
> I builde a object storage using ceph, a cluster with 5 nodes (9 sas10k 2TB (for data)+ 1 nvme (for metadata) in one node , using ceph version 14.2.3, nautilus (stable). My cluster storage over 100M (minlion) objects (files) with file's size ~ 50KB, and I want to delete them to free capacity and improve performance. When I delete object, speed delete object very slow, about ~  35-36 objs/s  at  100M (minlion) objects point, i using command:  s3cmd del -r s3://mybucket/2019  to delete. Can you help me:
> - How does ceph's deleting object operator work? (it mean about how delete object flow in ceph works?)
> - how to improve speed of delete object operator ( objects/s)
> - how to delete mult
> - bestpractice for this usecase
> - other recommend....
> Thank you very much.
> -----------------------------
> Br,
> Dương Tuấn Dũng
> 0986153686
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