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| jprovazn | tommylikehu: hi | 06:35 |
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| openstackgerrit | Merged openstack/manila master: [Rally] fix jobs https://review.openstack.org/451785 | 09:12 |
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| vponomaryov | tbarron: according to your question. Note #1 Generic driver's approach is dictated by back-end that is used by it - Cinder. So, it is the only possible way of DHSS=False approach for Generic driver | 09:59 |
| vponomaryov | tbarron: 2nd, you didn't provide requirements | 09:59 |
| vponomaryov | tbarron: 3rd, you also can look at ZFSonLinux driver where it can work on remote host as well as on local one | 09:59 |
| vponomaryov | tbarron: in other words, ZFSonLinux can run on both types of hosts - manila share service machine and any other, which can be Nova VM without any problems | 10:00 |
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| openstackgerrit | Jan Provaznik proposed openstack/manila-specs master: Add spec for user messages https://review.openstack.org/434277 | 10:34 |
| jprovazn | tommylikehu, hi, are you still around? | 10:36 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [WIP] Add quotas per share type support https://review.openstack.org/452158 | 11:37 |
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| tbarron | vponomaryov: thanks for the reply; zfs local/remote executor model to share service machine looks nice. | 11:50 |
| openstackgerrit | Tom Barron proposed openstack/manila master: Remove service_instance_network_helper_type option https://review.openstack.org/452727 | 11:53 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [CI] Add support for CI jobs with custom images https://review.openstack.org/444406 | 12:04 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [CI] Add support for CI jobs with custom images https://review.openstack.org/444406 | 12:06 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila-image-elements master: Allow built image be available via local webserver https://review.openstack.org/444353 | 13:03 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila-image-elements master: [DNM] test1 https://review.openstack.org/452747 | 13:03 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila-image-elements master: [DNM] test1 https://review.openstack.org/452747 | 13:26 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila-specs master: Add spec for per share type quotas https://review.openstack.org/447021 | 15:48 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [WIP] Add quotas per share type support https://review.openstack.org/452158 | 16:44 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/python-manilaclient master: [WIP] share type quotas https://review.openstack.org/452159 | 16:45 |
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| openstackgerrit | OpenStack Proposal Bot proposed openstack/manila master: Updated from global requirements https://review.openstack.org/452473 | 16:50 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [Share groups] Add scheduler filter ConsistentSnapshotFilter https://review.openstack.org/446044 | 16:58 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [Share Groups] Fix creation of share group types with wrong specs values https://review.openstack.org/446583 | 17:13 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [Share Groups] Add availability zone support https://review.openstack.org/447070 | 17:15 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [Share Groups] Add two new fields to SG API object https://review.openstack.org/447474 | 17:16 |
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| ganso | tbarron: ping | 18:46 |
| tbarron | ganso: pong | 18:54 |
| ganso | tbarron: Hi Tom, I saw your email. From what I know of the LVM driver, I don't see any major limitations for you | 18:55 |
| tbarron | ganso: thanks. | 18:55 |
| tbarron | ganso: as you saw in the postscript maybe the zfslinux driver approach is most flexible as basically it allows for both approaches | 18:56 |
| tbarron | ganso: simple lvm-like approach for basic gate tests and the most common deployments, and remote execution to service VMs or other hosts for more involved deployements | 18:57 |
| tbarron | deployments | 18:57 |
| ganso | tbarron: yea, it is simple. LVM driver expects that the share server is always local. ZFSOnLinux driver SSHs into localhost if it is local | 18:57 |
| ganso | tbarron: do you have a need for total network and/or storage segregation? approach #2 could achieve that | 18:58 |
| tbarron | ganso: compute instances (vms) should not have access to the ceph public network, only to an nfs frontend (ganesha user-space nfs exports). | 18:59 |
| tbarron | "ceph public network" is a term of art, it's in distinction to the backend replication network that OSDs use amongst themselves | 19:00 |
| tbarron | so it won't be an OpenStack "public" network. | 19:00 |
| ganso | tbarron: what about segregation among tenants? | 19:01 |
| tbarron | ganso: that's for the DHSS=True case. | 19:01 |
| tbarron | ganso: which we will also do, but there's a set of use cases where tenants segregation isn't that critical. | 19:01 |
| tbarron | ganso: but denying access to the Ceph public network still is a requirement. | 19:02 |
| ganso | tbarron: ya. You can achieve that in DHSS=False as well, but you have to configure manually. Using the #1 approach would prevent achieving that in DHSS=False | 19:02 |
| ganso | tbarron: unless you implement like the ZFSOnLinux, SSHing into a remote server | 19:03 |
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| tbarron | ganso: yeah, I think we can basically do local exec to share server running on host but if an ssh-host is configured then we can assume nfs-ganesha is running there and do ssh-exec | 19:08 |
| tbarron | ganso: unlike the classic zfsonlinux case that remote ssh-host could (as vponomaryov pointed out) be a service VM that was started by an admin (like our devstack plugin does for the generic dhss=False case) | 19:09 |
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| tbarron | ganso: so we could really have a choice between options #1 and #2 | 19:09 |
| tbarron | ganso: and default to #1 | 19:09 |
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| ganso | tbarron: I think that choosing #1 with SSH is less effort than coding a procedure to boot a service instance in your driver, like the generic driver does in service_instance.py. Then, if you really want to do that, admin could do that manually, install ceph and ganesha in a VM, and point the host to that VM IP | 19:21 |
| tbarron | ganso: yeah, for DHSS=False case "the admin" would run any needed service VMs. "the admin" would be a deployment tool like devstack-plugin or triipleo | 19:25 |
| tbarron | ganso: as long as share servers are 1-1 with backend definitions this can be automated outside manila | 19:26 |
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| openstackgerrit | Merged openstack/manila master: Remove service_instance_network_helper_type option https://review.openstack.org/452727 | 19:40 |
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| openstackgerrit | OpenStack Proposal Bot proposed openstack/manila master: Updated from global requirements https://review.openstack.org/452473 | 21:52 |
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