On 3/10/2022 6:10 PM, Sasa Glumac wrote:
> In this respect could you please try to switch bluestore and bluefs
> allocators to bitmap and run some smoke benchmarking again.
Can i change this on live server (is there possibility of losing data
etc )? Can you please share correct procedure.
> First of all I'd like to clarify what exact command are you using to
> assess the fragmentation. There are two options: "bluestore allocator
> score" and "bluestore allocator fragmentation"
I am using this one : "ceph daemon osd.$i bluestore allocator score block"
> Both are not very accurate
Hi Sasa,
jsut a few thoughts/questions on your issue in attempt to understand
what's happening.
First of all I'd like to clarify what exact command are you using to
assess the fragmentation. There are two options: "bluestore allocator
score" and "bluestore allocator fragmentation"
Both
Rados bench before deleting OSD's and recreating them + syncing with
fragmentation 0.89
> T1 - wr,4M
> Total time run 60.0405
> Total writes made 9997
> Write size 4194304
> Object size4194304
> Bandwidth (MB/sec) 666,017
> Stddev Bandwidth 24.1108
>
