On 11/23/2015 07:19 PM, Gregory Farnum wrote:
> On Fri, Nov 20, 2015 at 11:33 AM, Simon Engelsman wrote:
>> [cut]
> In addition to what Robert said, it sounds like you've done something
> strange with your CRUSH map. Do you have separate trees for the SSDs
> and hard drives, or are they both und
On Fri, Nov 20, 2015 at 11:33 AM, Simon Engelsman wrote:
> Hi,
>
> We've experienced a very weird problem last week with our Ceph
> cluster. We would like to ask your opinion(s) and advice
>
> Our dedicated Ceph OSD nodes run with:
>
> Total platform
> - IO Average: 2500 wrps, ~ 600 rps
> - Replic
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We are seeing some of these issues as well, here is some things we have learned.
We found in our testing that enabling DISCARD as a mount option on the
SSD OSDs did not measurably affect performance (be sure to test on
your SSDs to be sure though).
Hi,
We've experienced a very weird problem last week with our Ceph
cluster. We would like to ask your opinion(s) and advice
Our dedicated Ceph OSD nodes run with:
Total platform
- IO Average: 2500 wrps, ~ 600 rps
- Replica's: 3x
2 pools:
- SSD (~50x1TB)
- Spinner (~36x2TB)
- 1024 PG's per pool