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| openstackgerrit | zhongjun proposed openstack/manila-specs master: Use 'LIKE' operator to filter resource at some columns https://review.openstack.org/447775 | 08:57 |
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| openstackgerrit | zhongjun proposed openstack/manila-specs master: Filter things out providing flexible way to API https://review.openstack.org/447775 | 09:09 |
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| openstackgerrit | zhongjun proposed openstack/manila-specs master: Enhance update shares https://review.openstack.org/453553 | 09:57 |
| openstackgerrit | yfzhao proposed openstack/manila master: Replace six.iteritems() with .items() https://review.openstack.org/451882 | 10:01 |
| openstackgerrit | Colleen Murphy proposed openstack/manila master: Fix important:: directive display in install guide https://review.openstack.org/453189 | 10:07 |
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| openstackgerrit | Merged openstack/manila-specs master: Retarget IPv6 to Pike https://review.openstack.org/446800 | 11:14 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [WIP] Add quotas per share type support https://review.openstack.org/452158 | 11:43 |
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| openstackgerrit | Merged openstack/manila master: Update to current tempest tag https://review.openstack.org/452450 | 11:49 |
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| openstackgerrit | Merged openstack/manila master: Fix important:: directive display in install guide https://review.openstack.org/453189 | 11:50 |
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| zhongjun_ | ganso: ping :) | 13:48 |
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| ganso | zhongjun_: pong | 13:57 |
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| zhongjun_ | ganso: In ensure_share spec: https://review.openstack.org/#/c/446494/15..16/specs/pike/ensure-share.rst | 13:59 |
| zhongjun_ | ganso: you means I don't need to change ensure_share to get_shares? | 14:00 |
| openstackgerrit | zhongjun proposed openstack/manila-specs master: Add spec for infinite share https://review.openstack.org/452097 | 14:01 |
| ganso | zhongjun_: yes, or change to another name, I think "get_shares" is not appropriate | 14:01 |
| zhongjun_ | ganso:ok, I could just change it back | 14:03 |
| ganso | zhongjun_: that would be ok | 14:03 |
| zhongjun_ | ganso:" I would like to see paragraph about how the RPCs will be fenced while a share is under maintenance" | 14:03 |
| zhongjun_ | ganso: How about I just add lock in ensure share method? | 14:03 |
| ganso | zhongjun_: the problem is not lock in ensure, it is invocations to every other method | 14:04 |
| ganso | zhongjun_: bswartz said in his comment that you should prevent several methods, such as extend, create_snapshot, etc while share is performing ensure | 14:05 |
| ganso | zhongjun_: but you are not proposing a status to lock that through a status... | 14:05 |
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| zhongjun_ | ganso: but in this spec, we only run ensure share when we restart the service, there is not extend, create_snapshot methods when we restart the sevice, why we should prevent it | 14:08 |
| bswartz | ganso: not exactly | 14:09 |
| bswartz | ganso: any background maintenance performed by manila should not prevent user requested operations | 14:09 |
| bswartz | it acceptable to postpone user requested operations but if we failed any user requested operation on account of maintenance then we'd be breaking an API contract | 14:10 |
| ganso | bswartz: yes | 14:10 |
| ganso | bswartz: zhongjun_ says that it will only run during restarts | 14:11 |
| ganso | bswartz: I see your comment was more general, but zhongjun_ says the workflow is very specific and there should be nothing to worry about | 14:12 |
| ganso | bswartz: maybe there is no need to handle this in a generic way? the easier way to handle would be status lock, as every API method has a 'if status == "available"' to run | 14:12 |
| zhongjun_ | ganso: we should worry about it in another spec: https://review.openstack.org/#/c/453553/ | 14:13 |
| ganso | bswartz, zhongjun_: no, there are specific problems that will be created by your implementation if this is not addressed | 14:14 |
| ganso | bswartz, zhongjun_: consider the following scenario | 14:14 |
| ganso | bswartz, zhongjun_: a migration is being performed in m-dat | 14:14 |
| ganso | bswartz, zhongjun_: so the share is being accessed | 14:14 |
| ganso | bswartz, zhongjun_: and then service is restarted and conditions to trigger ensure_share are met, so it puts the share in maintenance, while it is being migrated, or it is about to start a migration | 14:15 |
| zhongjun_ | ganso: In this scenario, the share status is not availble. so the share can not go to ensure share method, it means we can not put this share in maintenance | 14:17 |
| zhongjun_ | s/available | 14:17 |
| ganso | zhongjun_: ok | 14:18 |
| ganso | zhongjun_: if any request like "extend" is received after init completes, then it is ok | 14:19 |
| ganso | bswartz: do you know any specific situation where the above statement is not true? | 14:20 |
| ganso | bswartz: I thought you implied that in your comment | 14:20 |
| ganso | bswartz: "A better option is to make the fix stateless and to make the manager smart enough to fence any RPCs related to that share while the maintenance is ongoing. This way a user operation will occur either before or after a maintenance operation -- never at the same time, and never will it be blocked by maintenance." | 14:20 |
| zhongjun_ | ganso: currently, any request like "extend" is received after init completes | 14:21 |
| openstackgerrit | zhongjun proposed openstack/manila-specs master: Add spec for ensure share https://review.openstack.org/446494 | 14:22 |
| bswartz | I'm wary of any proposal to hold locks while performance maintenance | 14:23 |
| bswartz | better to have some new kinds of DB state if we really need to perform online maintenance | 14:23 |
| bswartz | not actual share states but a hidden flag perhaps | 14:23 |
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| openstackgerrit | zhongjun proposed openstack/manila-specs master: Add spec for ensure share https://review.openstack.org/446494 | 14:25 |
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| zhongjun_ | bswartz:ye, we need to perform online maintenance in another spec( https://review.openstack.org/#/c/453553/) I could use lock instead of states. | 14:30 |
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| bswartz | zhongjun_: I've always maintained that locks should only be held briefly -- long enough to toggle DB state but not to do other I/O | 14:34 |
| bswartz | because maintenance will involve I/O in nearly all cases, it would be bad to hold a lock that long | 14:34 |
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| zhongjun_ | bswartz: What kinds of DB state? | 14:40 |
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| bswartz | zhongjun_: I was just throwing an idea out that we could add a new hidden flag for maintenance | 14:41 |
| bswartz | it might be a bad idea | 14:42 |
| bswartz | but using locks is also a bad idea and using the user-visible state is also a bad idea | 14:42 |
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| zhongjun_ | bswartz: using the user-visible states, in this way, user could enter the 'ensuring' states, "users will have no control over when this state transition happens and it could block them from doing what they want." but acutually, user can not do anything when we run ensure share method. right? but we still need to let user think there is nothing happend in manila service, and user can do everthing the want(like extend action), we can hold | 15:07 |
| zhongjun_ | these in manila service(extend share after ensure share ) | 15:07 |
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| zhongjun_ | tbarron:In infinite share spec, you said 'manila create -size -1 ...' or 'manila create -size infinite ...' instead of just assuming infinite size if the size isn't specified. | 15:15 |
| tbarron | zhongjun_: right, I thought the spec should explain why you made that choice | 15:15 |
| tbarron | to do it implicitly rather than explicitly | 15:16 |
| tbarron | It may be the right choice, but you should explain why. | 15:16 |
| zhongjun_ | tbarron: you think the default is infinite is not suitable for manila | 15:16 |
| tbarron | zhongjun_: no, I didn't say one way or the other; I said: please explain *your* design choice. | 15:16 |
| tbarron | zhongjun_: you are writing this spec, not me :D | 15:17 |
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| EmilienM | vkmc: hey, can we poke folks to have https://review.openstack.org/#/c/453421/ merged asap, so tripleo CI can test upgrades from ocata to pike. Thanks | 15:18 |
| zhongjun_ | tbarron: I got it, I just add it , you could see it wheather it is suitable for manila | 15:18 |
| zhongjun_ | whether | 15:19 |
| vkmc | EmilienM, sure thing | 15:19 |
| EmilienM | thx | 15:19 |
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| zhongjun_ | tbarron: How about add like filter spec: "Unless there is a pressing need to do something in manila right away I'd rather see what works or not there - e.g. the key-value proposal." | 15:24 |
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| tbarron | bswartz: https://review.openstack.org/#/c/453421 please | 15:29 |
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| tbarron | zhongjun_: well I think infinite or no-fixed-size shares make a lot of sense, especially for backends that use a distributed file system and have to implement share sizes by quotas rather than by actual backend allocations | 15:33 |
| tbarron | zhongjun_: I just haven't had time to think through the implications well enough to propose it myself. | 15:33 |
| tbarron | zhongjun_: so I welcome your work on this front, but I do want the design choices to be explicit and discussed by the community | 15:34 |
| tbarron | zhongjun_: and that may take some time, I don't know ... | 15:34 |
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| zhongjun_ | tbarron: I could add more details in spec or discussed by the community, but in above, there is not about infinite share :D. this is another spec( changing some filter behaviour to use 'LIKE' expression on some columnshttps://review.openstack.org/#/c/447775/ ) | 15:42 |
| tbarron | zhongjun_: oh, sorry for the confusion, looking ... | 15:44 |
| zhongjun_ | tbarron: haha, It doesn't matter | 15:44 |
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| tbarron | bswartz: I guess we are getting towards the 6 month change of phase for backports to stable/newton | 16:08 |
| tbarron | bswartz: would be good to get https://review.openstack.org/#/c/415693/ | 16:08 |
| tbarron | bswartz: brings the UI into alignment with the CLI and API | 16:08 |
| tbarron | bswartz: so I'd argue it's not adding functionality but exposing functionality that's already there | 16:09 |
| openstackgerrit | Merged openstack/manila master: Add sem-ver flag so pbr generates correct version https://review.openstack.org/453421 | 16:15 |
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| bswartz | zhongjun_: all the state changes today are initiated by user action -- adding a state transition that occurs with no user action is bad because it will race with actual user action and break things (low probability, but it will happen) | 16:29 |
| bswartz | zhongjun_: there will need to be *some* kind of transition if we perform online maintenance of shares, but it shouldn't be a share state transition -- that's all I'm saying | 16:30 |
| bswartz | because if a user sends and API request at the exact moment the maintenance occurs, then the user action still needs to succeed as it would have without the maintenance -- although it might possibly take longer | 16:31 |
| bswartz | tbarron: ack | 16:31 |
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| tbarron | bswartz: ty | 16:31 |
| bswartz | tbarron: what exactly did we merge from EmilienM? it looks like an empty commit to me | 16:33 |
| tbarron | bswartz: did you see my comment in the patch pointing to how it works? | 16:33 |
| bswartz | tbarron: I started reading that pbr doc -- it sounds pretty horrifying | 16:34 |
| bswartz | I just wanted to confirm that the commit was indeed empty | 16:34 |
| bswartz | rather, that we intended to merge an empty commmit | 16:34 |
| tbarron | bswartz: it is indeed empty, all that matters is that commit tag | 16:35 |
| bswartz | what tag? | 16:35 |
| tbarron | not git tag | 16:35 |
| bswartz | you mean that commit messages now have semantic meaning as far as pbr is concerned? | 16:35 |
| tbarron | bswartz: yeah, that's how I understand it | 16:36 |
| bswartz | yeah that's exactly what I find horrifying | 16:36 |
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| bswartz | oh well, we shall not question the wisdom of pbr | 16:36 |
| tbarron | bswartz: understood, but we are just fitting into something bigger than us :D | 16:36 |
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| tbarron | bswartz: anyways, ganso workflowed it while you were doing other things, and I think that all things considered it's the right decision | 16:37 |
| tbarron | not *going there* with the more general discussion of whether pbr should be using these commit msgs that way, I just mean given that it is, we don't want manila to break on pbr | 16:39 |
| tbarron | bswartz: when you get a chance, consider https://review.openstack.org/#/c/415693/ for stable/newton as the cutoff is reportedly tomorrow | 16:41 |
| tbarron | cutoff for all but security and critical ... | 16:41 |
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| EmilienM | tbarron: back from lunch | 16:43 |
| EmilienM | yeah it's all magic in the commit mesage | 16:43 |
| tbarron | EmilienM: didn't think you ever had time for lunch | 16:43 |
| EmilienM | ahah :) | 16:43 |
| EmilienM | everyone should take a break for lunch | 16:43 |
| tbarron | EmilienM: anyways, it merged | 16:43 |
| EmilienM | thx | 16:44 |
| openstackgerrit | Alex Schultz proposed openstack/puppet-manila master: Drop -dev for release prep https://review.openstack.org/453764 | 16:45 |
| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [WIP] Add quotas per share type support https://review.openstack.org/452158 | 16:56 |
| openstackgerrit | Merged openstack/manila-image-elements master: Allow built image be available via local webserver https://review.openstack.org/444353 | 17:03 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila master: [WIP] Add quotas per share type support https://review.openstack.org/452158 | 17:50 |
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| openstackgerrit | Victoria Martinez de la Cruz proposed openstack/manila-specs master: Integration with ceilometer https://review.openstack.org/445441 | 19:00 |
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| xyang_ | gouthamr, ganso: hi, what do you guys think about this backport since you reviewed the original patch? https://review.openstack.org/#/c/451130/ | 19:47 |
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| gouthamr | xyang_: i'm okay with it; don't consider it risky or anything. | 20:02 |
| xyang_ | gouthamr: great. thanks | 20:03 |
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