Re: Questions about rbd flatten command

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Do these RBD volumes have a full feature set?  I would think that fast-diff and objectmap would speed this.

> On Apr 2, 2024, at 00:36, Henry lol <pub.virtualization@xxxxxxxxx> wrote:
> 
> I'm not sure, but it seems that read and write operations are
> performed for all objects in rbd.
> If so, is there any method to apply qos for flatten operation?
> 
> 2024년 4월 1일 (월) 오후 11:59, Henry lol <pub.virtualization@xxxxxxxxx>님이 작성:
>> 
>> Hello,
>> 
>> I executed multiple 'rbd flatten' commands simultaneously on a client.
>> The elapsed time of each flatten job increased as the number of jobs
>> increased, and network I/O was nearly full.
>> 
>> so, I have two questions.
>> 1. isn’t the flatten job running within the ceph cluster? Why is
>> client-side network I/O so high?
>> 2. How can I apply qos for each flatten job to reduce network I/O?
>> 
>> Sincerely,
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