Hi Ovidiu & Bob
Another question. I found starlingx save ceph cluster’s client.admin key in kube secret “ceph-pool-kube-rbd”. I wonder when starlingx create this secret, read ceph cluster keyring and save to secret. In bootstrap?
Thanks!
Martin, Chen
IOTG, Software Engineer
021-61164330
From: Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>
Sent: Monday, December 30, 2019 11:40 PM
To: Chen, Haochuan Z <haochuan.z.chen@intel.com>; Church, Robert <Robert.Church@windriver.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>
Subject: RE: question about ceph or storage
I don't know if it's out of date :) it may just need to be retested if it wasn't for current release.
From: Chen, Haochuan Z [haochuan.z.chen@intel.com]
Sent: Monday, December 30, 2019 3:51 PM
To: Poncea, Ovidiu; Church, Robert
Cc: 'starlingx-discuss@lists.starlingx.io'
Subject: RE: question about ceph or storage
Thanks Ovidiu! If “-c” is out of date, what about remove it later.
Martin, Chen
SSP, Software Engineer
021-61164330
From: Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>
Sent: Monday, December 30, 2019 4:43 PM
To: Chen, Haochuan Z <haochuan.z.chen@intel.com>; Church, Robert <Robert.Church@windriver.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>
Subject: RE: question about ceph or storage
Hi Chen,
It was used in the previous release for connecting a deployment (especially an openstack one) to an external Ceph cluster. I don't know what is the feature testing
status for current release.
Ovidiu
From: Chen, Haochuan Z [haochuan.z.chen@intel.com]
Sent: Monday, December 23, 2019 9:18 AM
To: Poncea, Ovidiu; Church, Robert
Cc: 'starlingx-discuss@lists.starlingx.io'
Subject: RE: question about ceph or storage
Sorry to disturb!
Merry Christmas to all StarlingX member!
Martin, Chen
SSP, Software Engineer
021-61164330
From: Chen, Haochuan Z
Sent: Monday, December 23, 2019 3:17 PM
To: Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>; Church, Robert <Robert.Church@windriver.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>
Subject: RE: question about ceph or storage
Hi Ovidiu
For “system storage-backend-add -c <ceph_conf>”, user could deploy another ceph cluster, and add as storage backend, correctly.
And this is this command’s intention, correct?
Martin, Chen
SSP, Software Engineer
021-61164330
From: Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>
Sent: Wednesday, December 18, 2019 7:47 PM
To: Chen, Haochuan Z <haochuan.z.chen@intel.com>; Church, Robert <Robert.Church@windriver.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>
Subject: RE: question about ceph or storage
Hi Chen, see inline.
From: Chen, Haochuan Z [haochuan.z.chen@intel.com]
Sent: Tuesday, December 17, 2019 10:46 AM
To: Church, Robert; Poncea, Ovidiu
Cc: 'starlingx-discuss@lists.starlingx.io'
Subject: question about ceph or storage
Hi Bob & Ovidiu
Some question about ceph or storage.
1, What’s storage tier and storage profile? What’s the
[Ovi] Storage tiering is equivalent with this:
https://ceph.io/planet/deploying-ceph-with-storage-tiering/ .
[Ovi] Profiles are managed by system storprofile-* and system host-apply-profile and are used to copy configuration from one node to another, identical node on initial provisioning. These profiles are only in system
inventory, there is no Ceph equivalent.
2, why for duplex it request such puppet class dependency in ceph.pp? Is this request make all drbd config before class ceph?
[Ovi] ceph-mon in AIO-DX is DRBD managed and it has a single, floating, monitor. On DX, when you swact, the monitor is stopped on the active controller and started on the standby controller.
Drbd::Resource <| |> -> Class['::ceph']
And flag file “.node_ceph_configured”, to inform drbd make init setup before ceph config?
3, To launch ceph-mon, create a logical volume “ceph-mon-lv” and mount to /var/lib/ceph/mon, not directly mkdir “/var/lib/ceph/mon” for ceph-mon [Ovi] Ceph monitors have their own
logical volume. They are managed through "system ceph-mon*" commands.
Thanks!
Martin, Chen
SSP, Software Engineer
021-61164330
From: Chen, Haochuan Z
Sent: Wednesday, December 11, 2019 4:46 PM
To: Church, Robert <Robert.Church@windriver.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>; Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>;
Qi, Mingyuan <mingyuan.qi@intel.com>
Subject: RE: ceph ops enabling in sysinv-conductor
Hi Bob
Some question, what’s storage tier and storage profile? As you said, we no longer manage pool and pg num, is this also unnecessary and we should remove it?
BR!
Martin, Chen
SSP, Software Engineer
021-61164330
From: Church, Robert <Robert.Church@windriver.com>
Sent: Wednesday, December 4, 2019 12:09 AM
To: Chen, Haochuan Z <haochuan.z.chen@intel.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>; Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>
Subject: Re: ceph ops enabling in sysinv-conductor
See inline…
From: "Chen, Haochuan Z" <haochuan.z.chen@intel.com>
Date: Tuesday, December 3, 2019 at 2:18 AM
To: Robert Church <Robert.Church@windriver.com>
Cc: "'starlingx-discuss@lists.starlingx.io'" <starlingx-discuss@lists.starlingx.io>, Ovidiu Poncea <Ovidiu.Poncea@windriver.com>
Subject: RE: ceph ops enabling in sysinv-conductor
Hi Bob
1, we could update default pg num in sysinv/helm/rbd_provisioner.py. But when platform-integ-apps applied, maybe user has not add osded, so the default pg num is still for user reference.
And for user override, I think it should add in ceph-pool-audit, stx-platform-helm/helm-charts/ceph-pools-audit/templates/job-ceph-pools-audit.yaml. but pg num update will make rebalance which cause management
network jam.
[RTC] For a more robust solution, consider the following:
·
We can update _met_app_apply_prerequisites () in sysinv/conductor.py for platform-integ-apps to require OSDs to be provisioned prior to applying the application. This will ensure an accurate OSD view when the application is
initially applied.
·
The provisioner system overrides (in sysinv/helm/rbd_provisioner.py) should have the ability to calculate and set an optimal PG number to avoid generating a warning.
·
The rbd provisioner chart should also support setting a new chunk size (if greater than the existing size) to update the PG num. This will support user PG updates from the helm-overrides API.
·
I think it’s potentially a good idea for ceph-pool-audit to support adjusting the PG numbers as well but this is tricky as I don’t think we can reduce PG_num in Mimic without creating a new pool and copying the contents (pg_autoscaling
is added in Nautilis). This audit code would have to be very specific in adjusting the PG num as installing applications that add additional pools will change the PG_num distribution.
2, the above case is only for system application. Any more alarm for PG number, request user should manage.
BR!
Martin, Chen
SSP, Software Engineer
021-61164330
From: Church, Robert <Robert.Church@windriver.com>
Sent: Tuesday, December 3, 2019 10:34 AM
To: Chen, Haochuan Z <haochuan.z.chen@intel.com>
Cc: 'starlingx-discuss@lists.starlingx.io' <starlingx-discuss@lists.starlingx.io>; Poncea, Ovidiu <Ovidiu.Poncea@windriver.com>
Subject: Re: ceph ops enabling in sysinv-conductor
Hi Martin,
In STX 1.0, we ran bare-metal openstack services for which we created and managed specific ceph storage pools for glance, cinder, nova, and swift. In this environment, we managed their creation and parameters
(PGs and quotas) as the cluster scaled up.
With the move to containerizing the openstack services in STX 2.0, pool creation is now driven mostly by helm charts packaged into an application (radosgw pools are the exception). Since we don’t know what additional
application(s) will be deployed and what pools may be created, we are currently longer managing pools as in STX 1.0.
These related functions in sysinv/conductor/ceph.py are remaining from STX 1.0 and need to be removed and/or repurposed to meet any new requirements.
I took a look at the LP logs and it looks like we only have a single application applied: platform-integ-apps. This currently results in a single pool for 6 OSDs
cluster:
id: 6231df84-33be-4aa4-82ea-7408e0f2421c
health: HEALTH_WARN
too few PGs per OSD (21 < min 30)
services:
mon: 3 daemons, quorum controller-0,controller-1,storage-0
mgr: controller-0(active), standbys: controller-1
osd: 6 osds: 6 up, 6 in
data:
pools: 1 pools, 64 pgs
objects: 0 objects, 0 B
usage: 645 MiB used, 5.4 TiB / 5.4 TiB avail
pgs: 64 active+clean
Since every installation will install platform-integ-apps, I think we should do the following:
1.
Update the chunk_size calculation in sysinv/helm/rbd_provisioner.py to be dynamically calculated based on the number OSDs provisioned in the cluster. As this may be the only pool created, it should meet the minimum size characteristics
to avoid a ceph warning.
2.
Update the rbd-provisioner helm chart to support explicitly setting the pg_num based on the chunk size. Do this to allow setting a user override for the chunk size so that we can re-apply platform-integ-apps and explicitly set
new values.
Regards,
Bob
From: "Chen, Haochuan Z" <haochuan.z.chen@intel.com>
Date: Monday, December 2, 2019 at 1:15 AM
To: Robert Church <Robert.Church@windriver.com>
Cc: "'starlingx-discuss@lists.starlingx.io'" <starlingx-discuss@lists.starlingx.io>, Ovidiu Poncea <Ovidiu.Poncea@windriver.com>
Subject: ceph ops enabling in sysinv-conductor
Hi Bob
I find some many function in sysinv-conductor/ceph.py, which could manage ceph cluster, such as create/delete/configure pool, audit pg etc.
But why these function is not enabled? Or plan to request user to manage ceph cluster, such as create pool and configure pg num?
Now I checked this issue, pg too few, as user maybe deploy few osd, which make alarm. So for such issue, request user to decide correct pg num or user could ignore?
https://bugs.launchpad.net/starlingx/+bug/1844164
BR!
Martin, Chen
SSP, Software Engineer
021-61164330