> In the past I see some good results (benchmark & latencies) for MySQL
and PostgreSQL. However, I've always used
> 4MB object size. Maybe i can get much better performance on smaller
object size. Haven't tried actually.
Did you tune mysql / postgres for this setup? Did you have a default
ce
Hi
When I use haproxy with keep-alive mode to rgws, haproxy gives many
responses like this!
Is there any problem with keep-alive mode in rgw?
Using nautilus 14.2.9 with beast frontend.
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Dear Pritha, thanks a lot for your feedback and apologies for missing your
comment about the backporting. Would you have a rough estimate on the next
Octopus release by any chance?
On another note on the same subject, would you be able to give us some feedback
on how the users will be created i
Yes, I had to tune some settings on PostgreSQL. Especially on:
synchronous_commit = off
I have a default RBD settings.
Do you have any recommendation?
Thanks,
Gencer.
On 19.10.2020 12:49:51, Marc Roos wrote:
> In the past I see some good results (benchmark & latencies) for MySQL
and PostgreS
I left osd.41 out over the weekend, and put it back in this morning.
After the recovery finished, here are the results of the ops queries:
ceph daemon osd.41 ops:
https://pastebin.com/keYBMVbH
ceph daemon osd.41 dump_historic_slow_ops
https://pastebin.com/axbZNh7M
Yes, the OSD was still out
Hi Frank,
I'll give both of these a try and let you know what happens.
Thanks again for your help,
--Mike
On 10/16/20 12:35 PM, Frank Schilder wrote:
Dear Michael,
this is a bit of a nut. I can't see anything obvious. I have two hypotheses
that you might consider testing.
1) Problem with 1
Hi, Ceph brain trust:
I'm still trying to wrap my head around some capacity planning for Ceph,
and I can't find a definitive answer to this question in the docs (at least
one that penetrates my mental haze)...
Does the OSD host count affect the total available pool size? My cluster
consists of th
Ah, this sentence in the docs I've overlooked before:
When you deploy OSDs they are automatically placed within the CRUSH map
under a host node named with the hostname for the host they are running on.
This, combined with the default CRUSH failure domain, ensures that replicas
or erasure code shar
Hi,
I have installed Ceph Octopus cluster using cephadm with a single network
now I want to add a second network and configure it as a cluster address.
How do I configure ceph to use second Network as cluster network?.
Amudhan
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Hi,
I'm not sure I understand what your interpretation is.
If you have 30 OSDs each with 1TB you'll end up with 30TB available
(raw) space, no matter if those OSDs are spread across 3 or 10 hosts.
The crush rules you define determine how many replicas are going to be
distributed across your O
Hi everyone, I asked the same question in stackoverflow, but will repeat here.
I configured bucket notification using a bucket owner creds and when the owner
does actions I can see new events in a configured endpoint(kafka actually).
However, when I try to do actions in the bucket, but with anot
I hope you restarted those mons sequentially, waiting between each for the
quorum to return.
Is there any recovery or pg autoscaling going on?
Are all OSDs up/in, ie. are the three numbers returned by `ceph osd stat` the
same?
— aad
> On Oct 19, 2020, at 7:05 PM, Szabo, Istvan (Agoda)
> wro
>
> Hi,
>
> Yeah, sequentially and waited for finish, and it looks like it is still doing
> something in the background because now it is 9.5GB even if it tells
> compaction done.
> I think the ceph tell compact initiated harder so not sure how far it will go
> down, but looks promising. When
Marc Roos wrote:
> > In the past I see some good results (benchmark &
> > latencies) for MySQL and PostgreSQL. However, I've always used
> > 4MB object size. Maybe i can get much better
> > performance on smaller object size. Haven't tried actually.
>
> Did you tune mysql / postgres for thi
Another option is to let PosgreSQL do the replication with local storage. There
are great reasons for Ceph, but databases optimize for this kind of thing
extremely well.
With replication in hand, run snapshots to RADOS buckets for long term storage.
> On Oct 17, 2020, at 7:28 AM, Gencer W. Gen
Another path that we have been investigating is to use some NVMe on the
database machine as a cache (bcache, cachefs, etc). Several TB of U.2
drives in a striped-LVM should enhance performance for 'hot' data and
cover for the issues of storing a large DB in Ceph.
Note that we haven't tried thi
Hi,
I've received a warning today morning:
HEALTH_WARN mons monserver-2c01,monserver-2c02,monserver-2c03 are using a lot
of disk space
MON_DISK_BIG mons monserver-2c01,monserver-2c02,monserver-2c03 are using a lot
of disk space
mon.monserver-2c01 is 15.3GiB >= mon_data_size_warn (15GiB)
Hi,
Yeah, sequentially and waited for finish, and it looks like it is still doing
something in the background because now it is 9.5GB even if it tells compaction
done.
I think the ceph tell compact initiated harder so not sure how far it will go
down, but looks promising. When I sent the email
Okay, thank you very much.
From: Anthony D'Atri
Sent: Tuesday, October 20, 2020 9:32 AM
To: Szabo, Istvan (Agoda)
Cc: ceph-users@ceph.io
Subject: Re: [ceph-users] Re: Mon DB compaction MON_DISK_BIG
Email received from outside the company. If in doubt don't
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