Friday, 2019-07-19

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ruffian_sheepwhoami-rajat:I think I have correct all the code by the suggestion of reviewer01:14
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openstackgerritChris M proposed openstack/cinder master: WIP: Create Seagate driver from dothill driver
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whoami-rajatruffian_sheep: hi03:14
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ruffian_sheepwhoami-rajat:I think I have correct all the code by the suggestion of reviewer03:51
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openstackgerritLiang Fang proposed openstack/cinder-specs master: Leverage compression hardware accelerator
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* doubletao is there anyone available to take a look at Thank you!06:03
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openstackgerritpengyuesheng proposed openstack/python-cinderclient master: Blacklist sphinx 2.1.0 (autodoc bug)
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ruffian_sheepwhoami-rajat:Are u online?08:16
dpawlikwhoami-rajat, jungleboyj, smcginnis: hi. I come back with problem of choosing08:22
dpawlikone backend for volume that I create08:22
dpawlikcan I use "json filter" for that ?08:22
dpawlikI mean, as a normal user, can I do a query for cinder create that will choose proper backend?08:23
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whoami-rajatruffian_sheep: hi, currently reviewing the driver08:29
openstackgerritKuiRong proposed openstack/cinder master: Re-add Infortrend Cinder volume driver
openstackgerritRajat Dhasmana proposed openstack/cinderlib master: Fix: Snapshot creation with volume types
openstackgerritwanghao proposed openstack/cinder-specs master: Update the spec of filtering by time comparison operators for Train
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whoami-rajatdpawlik:  Haven't used it but yes, you can choose any of the available filters and also customize filters using a driver filter
whoami-rajatfilters or weighers08:49
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openstackgerritwanghao proposed openstack/cinder master: Support Incremental Backup Completion In RBD
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dpawlikwhoami-rajat: thanks09:53
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openstackgerritLuigi Toscano proposed openstack/cinderlib master: WIP zuul: change the cinderlib test runner into a role
openstackgerritMerged openstack/cinder stable/pike: [VNX] Fix test case issue
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openstackgerritKuiRong proposed openstack/cinder master: Re-add Infortrend Cinder volume driver
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openstackgerritLuigi Toscano proposed openstack/cinder master: Migrate tempest job to zuul v3 native
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openstackgerritLuigi Toscano proposed openstack/cinder master: Migrate tempest job to zuul v3 native
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_erlon_jgriffith: hey, around?13:48
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_erlon_jbernard: hey, so, picking up from yesterday, I read the spec. In the end you dont use the failback command in your workflow right?13:50
_erlon_instead, you always failover13:50
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_erlon_jbernard: you didnĀ“t implemented the update_host_replication?14:19
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jbernard_erlon_: i do use it failback14:35
jbernard_erlon_: failing over is not the same as failback, from a db perspective14:36
jbernard_erlon_: to return to a clean state, failback is required14:36
jbernard_erlon_: you'll see that as you monitor the fields in the service table14:37
jbernard_erlon_: (which is recommend to make sure everything is being managed correctly)14:37
jbernard_erlon_: s/is/I14:37
jbernard_erlon_: i dont think I needed update_host_replication14:38
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hemnageguileo: ping14:59
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geguileohemna: pong15:00
hemnalooks like iscsiadm fails to login to the target portal if there is a session already existing15:00
hemnare: hostname vs ip15:00
hemnaso I'm not sure how this will work15:00
geguileothat's why the other day I told you to forget what I had told you...15:01
hemnaI didn't see that15:01
geguileobecause I knew it wouldn't work  :-(15:01
geguileooh! I should have ensured you saw the message15:01
geguileobecause there were so many messages that it was easy to miss one15:01
hemnayah, I had missed that one :P15:01
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hemnaso I'm not sure what to do here then15:02
hemnaI suppose if they could do an attach to the host with a different IP than what cinder uses for target creation, it shouldn't conflict?15:05
hemnabrick wouldn't touch the session config for the host attachment then ?15:05
hemnaor is changing the scan mode to manual global ?15:06
geguileoit's per target15:06
geguileothey could even have the same IP if the portal was different15:06
hemnaso if there is a way to get them to use a different target portal ip for cinder/nova attachments vs. host attachments then they would be ok15:07
hemnaas the setting is on the session for that target_portal?15:07
geguileowhat driver are they using?15:07
hemnalooks like 3par15:08
hemnaif that's the case, it should be straight forward15:08
hemnabut, most 3par customers use multipath, and use all available IPs15:08
hemnawhich they are in this case it looks like15:09
geguileocould they use a different target on the 3PAR backend for their host stuff?15:10
geguileothat would also work15:10
geguileoand they could use all the IP addresses afaik15:10
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hemnathe target is the target_portal15:11
hemnaall sessions for all targets go through the same portals15:11
hemnaand since this is a per session issue, they'd need a separate target_portal to get a different session15:12
geguileoI don't follow15:12
hemnasessions are base on the initiator and target_portal right?15:13
hemnayah, so all targets on the backend are exported via the target_portals15:13
geguileoso if you change the target and leave the portal you'll be able to set things differently for OS and host15:13
hemnathey'll have to use a unique target_portal for the host attachments15:14
hemnavs nova/cinder attachments15:14
hemnaso that nova/cinder/os-brick never touches the session for the host attachment session15:14
geguileoyeah, so if they just change the target they are good to go15:14
hemnatarget portal15:14
geguileoas long as the 3par driver doesn't decide to use that target15:15
hemnatarget = volume on the array15:15
geguileotarget+LUN = volume on the array15:15
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hemnaI was ignoring lun for this discussion.15:17
hemnaok I think I understand this a bit better now15:17
hemnaso, they have to tell their cinder driver to exclude an IP to export targets15:17
potsi don't see any python 3.7 issues with the driver, but it's been an adventure getting the CI working with 3 different versions of python on the system.15:21
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geguileohemna: I think you'll need to set a different 'host' configuration in Cinder so it's not the same as the one in the host, and then go to 3PAR's StoreServ and create the host's host entity and map the host volumes there, I think thats what needs to be done to get them to have different targets...  But I could be wrong15:24
jungleboyjpots:  Yay!  Thank you for your efforts there!15:25
hemnayah, so the way the 3par works15:25
hemnais on the 3par, you create a host15:25
hemnathat host has an ip15:26
hemnaand then you create a vlun15:26
hemnain that vlun you tell it where to export the volume to15:26
hemnathat vlun is tied to an IP on the 3par, which ends up being the target_portal ip addy15:26
hemnabasically we need the driver to blacklist an ip to use15:27
hemnaI think the 3par driver can do that15:28
hemnanot sure about EMC15:28
hemnalooks like they might15:29
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geguileoI wouldn't blacklist anything... I would just make sure that there are 2 different "host" entries on the 3PAR15:34
geguileoOne for brick and another for the host15:34
geguileoOoooooh, I don't think that will work  :-(15:35
hemnathe cinder driver can never use that IP15:35
geguileoBecause 3PAR probably needs a unique iscsi initiator name per host15:35
hemnaotherwise it will show up in the target_portal list going to os-brick15:35
geguileowhen I say it will not work, is my suggestion, I don't know about yours  :-(15:35
hemnain which it'll change the session15:35
geguileoI have access to a 3PAR, so I'll see if I can figure out something on Monday15:36
hemnaheh ok15:36
hemnamy customer is using an EMC unity15:36
hemnaso I was just using 3par as an example of how to do the isolation15:36
geguileooh, I thought the customer was using EMC15:36
geguileosorry, using 3PAR15:36
hemnathis should work15:36
* hemna crosses fingers15:37
hemnathanks for the help man15:38
hemnafrankly, I'm surprised we haven't run into this more15:38
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geguileoI may forget to look into it on Monday, so feel free to remind me ;-)15:50
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deiterCould you please review ?16:27
deiterThank you!16:27
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openstackgerritBI SHUN, KE proposed openstack/cinder master: Fix Cinder Backup Driver Option Value
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openstackgerritJay Rubenstein proposed openstack/cinder master: SF remove deprecated sf_allow_template_caching
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openstackgerritJay Rubenstein proposed openstack/cinder master: SF Give a hint when SolidFire creds are wrong
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openstackgerritMerged openstack/cinder-specs master: Sync Sphinx requirement
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openstackgerritMerged openstack/python-cinderclient master: Switch to the new canonical constraints URL on master
openstackgerritMerged openstack/python-cinderclient master: Remove the hard-coded version number.
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openstackgerritMerged openstack/cinder master: Add rbd secret_uuid in secondary config
openstackgerritMerged openstack/cinder master: doc: Fix rbd driver marked support multiattach
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openstackgerritLuigi Toscano proposed openstack/cinder master: Migrate tempest job to zuul v3 native
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openstackgerritTejdeep Kautharam proposed openstack/cinder master: Rsdlib changed providing_pools interface
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openstackgerritMerged openstack/os-brick master: Sync Sphinx requirement

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