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| zhiyuan | hi | 01:00 |
|---|---|---|
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| xuzhuang | hi | 01:01 |
| Yipei | hi | 01:01 |
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| zhiyuan | #startmeeting tricircle | 01:02 |
| openstack | Meeting started Wed Jul 18 01:02:16 2018 UTC and is due to finish in 60 minutes. The chair is zhiyuan. Information about MeetBot at http://wiki.debian.org/MeetBot. | 01:02 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 01:02 |
| *** openstack changes topic to " (Meeting topic: tricircle)" | 01:02 | |
| openstack | The meeting name has been set to 'tricircle' | 01:02 |
| zhiyuan | xuzhuang, any update for your patch? | 01:02 |
| xuzhuang | I have tried to use anthor physical network | 01:03 |
| xuzhuang | I think there is a problem in neutron/services/segments:db.py:117 | 01:04 |
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| zhiyuan | that line will trigger a notification and invoke registered callback | 01:06 |
| zhiyuan | so functions subscribe that event will be called | 01:06 |
| xuzhuang | yeah, It will have an affect on unittest and the logic that we use routed network. | 01:07 |
| zhiyuan | what functions will be called by that event? | 01:08 |
| xuzhuang | When we use routed network, we don't need create a network for each segment, we just use segment to maintain the relationship of routed network and real external network | 01:09 |
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| xuzhuang | In the unit test, it calls : Callback unit.network.test_local_plugin.FakePlugin._handle_segment_change | 01:09 |
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| zhiyuan | so _handle_segment_change has some logics to process segment change | 01:10 |
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| zhiyuan | can we override that function? if it affect our logic? | 01:11 |
| xuzhuang | I haven't finded the method of _handle_segment_change in test_local_plugin | 01:12 |
| zhiyuan | so the test fails becauuse missing that function? | 01:13 |
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| xuzhuang | the method may be created in program dynamically, it fails because the callback method need to create network | 01:15 |
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| zhiyuan | you can find this function in plugins/ml2/plugin.py | 01:17 |
| xuzhuang | If we use mock to fix the bug in unit test, how we deal the network creation in callback when we actually use routed network and segment in new l3 network model. | 01:17 |
| zhiyuan | so I think you may need to override this function | 01:17 |
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| zhiyuan | from the function I don't see it is creating a network | 01:20 |
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| xuzhuang | yeah, I have tride to override but they used notify in the db layer of segment | 01:21 |
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| zhiyuan | you can override the handler, the "handle_segment_change" | 01:22 |
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| xuzhuang | ok, I see | 01:25 |
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| zhiyuan | ok, have a try | 01:33 |
| zhiyuan | other topics? | 01:33 |
| xuzhuang | no | 01:34 |
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| Yipei | no | 01:35 |
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| zhiyuan | ok, let's end the meeting shortly | 01:38 |
| zhiyuan | thanks for attending | 01:39 |
| zhiyuan | #endmeeting | 01:39 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 01:39 | |
| openstack | Meeting ended Wed Jul 18 01:39:10 2018 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 01:39 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/tricircle/2018/tricircle.2018-07-18-01.02.html | 01:39 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/tricircle/2018/tricircle.2018-07-18-01.02.txt | 01:39 |
| xuzhuang | bye | 01:39 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/tricircle/2018/tricircle.2018-07-18-01.02.log.html | 01:39 |
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| martial__ | #startmeeting Scientific-SIG | 11:01 |
| openstack | Meeting started Wed Jul 18 11:01:20 2018 UTC and is due to finish in 60 minutes. The chair is martial__. Information about MeetBot at http://wiki.debian.org/MeetBot. | 11:01 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 11:01 |
| *** openstack changes topic to " (Meeting topic: Scientific-SIG)" | 11:01 | |
| openstack | The meeting name has been set to 'scientific_sig' | 11:01 |
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| martial__ | Good day, welcome to a short version of the weekly Scientific SIG meeting | 11:01 |
| daveholland | o/ | 11:02 |
| janders | gday Martial! | 11:02 |
| martial__ | hello daveholland and janders | 11:02 |
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| martial__ | Both Stig and Blair are otherwise occuppied and our agenda is light | 11:02 |
| janders | Berlin CFP closed - bit of relief | 11:03 |
| daveholland | John G persuaded me to put a proposal in, first time I've submitted one | 11:03 |
| priteau | Hi everyone | 11:03 |
| martial__ | Hi priteau | 11:04 |
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| martial__ | daveholland: cool :) | 11:04 |
| janders | daveholland: great, congratulations! :) what is your preso about? | 11:04 |
| daveholland | it's intended to be a high-level description of our first 12-18 months running a production OpenStack service (content to be finalized/argued about, if the proposal is accepted) | 11:06 |
| martial__ | look forward to hearing about it | 11:07 |
| janders | very cool! | 11:07 |
| janders | me too | 11:07 |
| martial__ | like I mentioned at the top of the hour, today is light | 11:07 |
| martial__ | CFP is closed | 11:07 |
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| janders | martial: have you put any proposals in? | 11:08 |
| martial__ | just to mention we have a Super Computing 18 Birds of a Feather proposal in the work to discuss OpenStack, Containers and Kubernetes | 11:08 |
| janders | very cool! | 11:08 |
| martial__ | janders: with SC18 at the exact same time as Berlin, sadly I did not, I will be in Dallas | 11:09 |
| janders | yeah it's a tough one, isn't it... | 11:09 |
| martial__ | sadly it is is | 11:09 |
| janders | I'll almost certainly choose Berlin but I will have hard time bringing more people with me | 11:09 |
| martial__ | a lot of our usual HPC operators are at SC18. I have confirmed this with them | 11:10 |
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| martial__ | some are on our BoF as well | 11:10 |
| martial__ | it is likely Blair will be as well | 11:11 |
| martial__ | Stig will be in Berlin to run the Scientific SIG | 11:11 |
| janders | ACK! That's good to know | 11:11 |
| martial__ | and that is the entire content of the agenda that I had | 11:11 |
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| daveholland | hehe. I have a quick NUMA question for AOB | 11:12 |
| martial__ | like I said a short meeting so | 11:12 |
| martial__ | #topic AOB | 11:12 |
| *** openstack changes topic to "AOB (Meeting topic: Scientific-SIG)" | 11:12 | |
| martial__ | daveholland: go | 11:12 |
| verdurin | Hello | 11:12 |
| daveholland | so, we're using NUMA-aware instances for one particular user/project, with extra_spaces like hw:cpu_policy='dedicated', hw:cpu_thread_policy='isolate', hw:numa_nodes='2' | 11:12 |
| daveholland | it's successful in that they see a performance benefit. Now we're being asked to enable this more widely. | 11:13 |
| daveholland | What are people's experiences with mixing NUMA-aware/non-NUMA-aware instances on the same hypervisor? | 11:13 |
| daveholland | (should be go "NUMA only"?) | 11:13 |
| janders | what's your motivation behind using NUMA aware instances? | 11:13 |
| janders | consistent, predictable performance? | 11:14 |
| daveholland | "make it go faster" | 11:14 |
| janders | I haven't tried this myself, but my gut feel is mixing it will yield random results | 11:14 |
| daveholland | this is a CPU/memory access heavy workload | 11:14 |
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| janders | I did something similar before the NUMA aware days, I had flavors with and without CPU overcommit | 11:14 |
| janders | these would be tied to different host aggregates | 11:15 |
| janders | worked well | 11:15 |
| janders | if I were to implement NUMA I'd probably start with the same | 11:15 |
| daveholland | I should clarify, this is in an isolated aggregagte, we are looking at 26 or 52 VCPU instances (on a 56 CPU host... 28 with HT enabled) | 11:15 |
| verdurin | daveholland: mixing the two sounds like a Brave and Exciting move to me | 11:15 |
| daveholland | verdurin: that was my initial reaction too | 11:16 |
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| daveholland | we are considering enabling it for the biggest flavor only (so it would be the only instance on the hypervisor so couldn't trip over anything else) | 11:16 |
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| janders | do you overcommit CPUs on NUMA-aware instances? | 11:16 |
| martial__ | (sorry have to check on kids) | 11:17 |
| janders | from your above comment I understand you don't - correct? | 11:17 |
| daveholland | janders: not yet. We think it would be a Bad Idea because the cpu pinning + noisy neighbours would make life worse than expected | 11:17 |
| janders | ok.. I think I'm getting it more | 11:17 |
| janders | so - the concern is that you'll have enough cores to run both instances w/o overlapping cores | 11:18 |
| janders | however having mix of NUMA and non-NUMA can somehow cause scheduling both VMs onto the same cores? | 11:18 |
| janders | do I get this right? | 11:18 |
| daveholland | janders: yes, I think that sums it up | 11:18 |
| janders | (I'm using a case with two VMs to make it easier for me to follow) | 11:18 |
| janders | if we take NUMA out of the picture for a second - if we had two non-NUMA instances on the hypervisor w/o CPU overcommit | 11:19 |
| janders | is there any chance they would hit the same cores? My guess - no. | 11:20 |
| janders | I wonder how KVM handles that | 11:20 |
| priteau | From http://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/virt-driver-cpu-thread-pinning.html, I read: If the host does have an SMT architecture (i.e. one or more cores have “thread siblings”) then each vCPU will be placed on a different physical core and no vCPUs from other guests will be placed on the same core. | 11:20 |
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| janders | and then question is - how NUMA awareness can affect that | 11:20 |
| daveholland | for a non-overcommit flavor/host/aggregate - I think you are correct (we don't cpu-pin for those flavours as no perceived need) | 11:20 |
| priteau | It's not clear if that works only when all instances use hw:cpu_thread_policy=isolate | 11:20 |
| daveholland | priteau: thanks, I hadn't seen that spec | 11:21 |
| daveholland | (we are on Pike) | 11:21 |
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| janders | what OS and OpenStack "distro"? | 11:22 |
| priteau | daveholland: It's the first hit I got on Google, but I see pretty much the same text is used on the official doc: https://docs.openstack.org/nova/pike/admin/flavors.html | 11:22 |
| daveholland | RHOSP12 | 11:22 |
| janders | have you looked at real time KVM doco? | 11:22 |
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| janders | I'm not sure if they go down to that level of detail, but I remember the RHATs using these things for their NFV implementations | 11:23 |
| daveholland | no (I thought that was more for SRIOV or NFV, we haven't touched those) | 11:23 |
| janders | I'll have a quick look out of curiosity | 11:23 |
| janders | I noticed that at my time at RHAT - and now it's on my TODO list for a bit later in the project | 11:24 |
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| daveholland | heh, Google tells me there are past summit presentations on RT KVM, I will check them out | 11:25 |
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| martial__ | daveholland: keep us updated what you find in a follow up meeting? | 11:26 |
| janders | I was hoping that RHAT have a dedicated section on RT KVM in OSP doco, but unfortunately not | 11:26 |
| janders | maybe worth a support ticket? | 11:26 |
| daveholland | Certainly will.I think we understand most of the machinery (how to pin, what to pin, what thread policy etc) - and have had success with single instance per hypervisor in a separated aggregate - our uncertainty is mixing this configuration with the vanilla flavors. | 11:27 |
| daveholland | +1 to support ticket, thanks | 11:27 |
| janders | idea: | 11:27 |
| janders | say you have 32 pCPU | 11:27 |
| janders | spin up 16x 2vCPU instances, half NUMA aware, half not | 11:27 |
| janders | look at xmls to see what cores they landed on | 11:28 |
| priteau | daveholland: Quick look at the code that enforces the isolate policy (nova/virt/hardware.py), I *think* that your non-NUMA instances may be forbidden to execute on the core where a NUMA instance is pinned | 11:28 |
| janders | using fewer larger VMs may yield more sensible results, but chances of running into a scheduling clash are lower | 11:28 |
| janders | priteau: good stuff! | 11:29 |
| janders | does NUMA aware xml differ much from a vanilla one? | 11:29 |
| daveholland | you get to see the CPU mapping AIUI | 11:30 |
| daveholland | thanks for the ideas and pointers. | 11:30 |
| janders | thanks for an interesting question! :) | 11:30 |
| priteau | daveholland: You could enable debug logs and look at what Nova (I assume nova-compute) prints out | 11:30 |
| priteau | It should say something like "Selected cores for pinning: …" | 11:31 |
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| janders | are you using cpu_mode=host-passthrough ? | 11:32 |
| priteau | http://git.openstack.org/cgit/openstack/nova/tree/nova/virt/hardware.py?h=stable/pike#n890 | 11:32 |
| daveholland | OK I think our best bet is to do some experiments too | 11:32 |
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| daveholland | we have cpu_mode=host-model (all the hypervisors are identical....... currently) | 11:33 |
| janders | regarding experiments - perhaps it's worth running Linpack with just the NUMA-aware instance running | 11:34 |
| janders | and then add non-NUMA-aware | 11:34 |
| janders | see if there's much fluctuation | 11:34 |
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| janders | I only tried running Linpack in VMs with CPU passthru though | 11:35 |
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| janders | I'd think that if there's more of an overhead in other CPU modes it will be consistent, but it's not that I tested that.. | 11:35 |
| daveholland | the future is hazy but if we agreed not to want migration then host-passthrough is worth a look, yes | 11:36 |
| janders | I remember needing passthru for nested virt, too | 11:36 |
| janders | (OpenStack-on-OpenStack development) | 11:36 |
| janders | but spot on all these optimisations can come back to bite later.. | 11:37 |
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| daveholland | plenty to think about, thanks all | 11:43 |
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| martial__ | thanks daveholland | 11:44 |
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| martial__ | please follow up in the channel for an update on this | 11:45 |
| martial__ | another other AOB? | 11:45 |
| martial__ | Otherwise let me call this meeting to an end (I must go unfortunately) | 11:45 |
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| martial__ | thanks everybody | 11:46 |
| martial__ | #endmeeting | 11:46 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 11:46 | |
| openstack | Meeting ended Wed Jul 18 11:46:03 2018 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 11:46 |
| janders | thanks all! | 11:46 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-07-18-11.01.html | 11:46 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-07-18-11.01.txt | 11:46 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-07-18-11.01.log.html | 11:46 |
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| jungleboyj | #startmeeting Cinder | 16:00 |
| openstack | Meeting started Wed Jul 18 16:00:23 2018 UTC and is due to finish in 60 minutes. The chair is jungleboyj. Information about MeetBot at http://wiki.debian.org/MeetBot. | 16:00 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 16:00 |
| *** openstack changes topic to " (Meeting topic: Cinder)" | 16:00 | |
| openstack | The meeting name has been set to 'cinder' | 16:00 |
| smcginnis | o/ | 16:00 |
| ganso | hello | 16:00 |
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| Rambo | hello | 16:00 |
| jungleboyj | courtesy ping: jungleboyj DuncanT diablo_rojo, diablo_rojo_phon, rajinir tbarron xyang xyang1 e0ne gouthamr thingee erlon tpsilva patrickeast tommylikehu eharney geguileo smcginnis lhx_ lhx__ aspiers jgriffith moshele hwalsh felipemonteiro lpetrut lseki _alastor_ | 16:01 |
| gouthamr | o/ | 16:01 |
| _alastor_ | o/ | 16:01 |
| tommylikehu | hi | 16:01 |
| walshh | Hi | 16:01 |
| mszwed | hi | 16:01 |
| tushargohad | hello | 16:01 |
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| jungleboyj | Hello everyone. | 16:01 |
| jungleboyj | Happy Wednesday. | 16:01 |
| geguileo | hi! o/ | 16:02 |
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| amito | o/ | 16:02 |
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| jungleboyj | Shall we begin? Looks like we have a good crowd. | 16:02 |
| jungleboyj | #topic announcements | 16:02 |
| *** openstack changes topic to "announcements (Meeting topic: Cinder)" | 16:02 | |
| jungleboyj | We have the PTG planning etherpad. | 16:02 |
| jungleboyj | #link https://etherpad.openstack.org/p/cinder-ptg-planning-denver-9-2018 | 16:03 |
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| jungleboyj | People have started indicating if they plan to attend in there. | 16:03 |
| jungleboyj | Thank you to all of you who have done that. | 16:03 |
| jungleboyj | Would appreciate everyone doing that so that we know how many people to expect there. | 16:03 |
| jungleboyj | Also, I have done an os-brick release .... two actually. | 16:04 |
| jungleboyj | I had one last week, 2.5.2 | 16:04 |
| jungleboyj | We got a few more bug fixes in this week and I have proposed 2.5.3 https://review.openstack.org/583562 | 16:04 |
| jungleboyj | #link https://review.openstack.org/583562 | 16:05 |
| tbarron | hi | 16:05 |
| jungleboyj | And some notes on schedule: | 16:05 |
| e0ne | hi | 16:05 |
| jungleboyj | #link https://releases.openstack.org/rocky/schedule.html | 16:05 |
| jungleboyj | This week is Cinder Feature Proposal Freeze. | 16:06 |
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| jungleboyj | I don't think that is a big issue for anyone. | 16:06 |
| jungleboyj | Next week, however, is feature freeze. | 16:06 |
| jungleboyj | Are there any features that need review that we have missed? | 16:06 |
| smcginnis | We have a couple with the client freeze coming next week. | 16:07 |
| jungleboyj | smcginnis: Ok. I will need to take a look at client patches. | 16:07 |
| smcginnis | #link https://review.openstack.org/532702/ | 16:07 |
| jungleboyj | We went through os-brick and those were good. | 16:07 |
| smcginnis | jungleboyj: Well, not so much just the client patches as the server side patches need to land if we want them, and if we do we need to get it done in time to get the client side support in as well. | 16:08 |
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| smcginnis | # https://review.openstack.org/#/c/559397/ Client side attachment mode patch | 16:08 |
| smcginnis | #link https://review.openstack.org/#/c/559397/ Client side attachment mode patch | 16:08 |
| smcginnis | #link https://review.openstack.org/#/c/533564/ Transfer snapshots | 16:09 |
| tommylikehu | yeah, transfer snapshots | 16:09 |
| smcginnis | #link https://review.openstack.org/#/c/577611/ Transfer snapshots client patch | 16:09 |
| smcginnis | Unfortunately it's another race for which one gets which mv. | 16:09 |
| e0ne | it has few -1 and merge conflict :( | 16:09 |
| smcginnis | So it might help things if we coordinate this a little and a) decide if we want them both in rocky, and b) work on getting them merged in order to get the MVs right and things landed in time. | 16:10 |
| jungleboyj | :-( | 16:10 |
| jungleboyj | smcginnis: So, I think we definitely want the Attachment mode in. | 16:10 |
| jungleboyj | That would be the first priority. | 16:10 |
| smcginnis | My thoughts too, so I started with updating that one yesterday. | 16:11 |
| jungleboyj | The Transfer Snapshot one has been around a while. Would be good to get it in. | 16:11 |
| jungleboyj | It already needs an MV update so I would make it second. | 16:11 |
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| smcginnis | Both would be really good to get in, but the snapshot issue is something that's been there for awhile, so I don't think missing one more releases is the end of the world. But really good if we can get it in this release. | 16:11 |
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| jungleboyj | smcginnis: Agreed. | 16:12 |
| smcginnis | I was going to update that one too, but didn't want to conflict with the attachment one or assume that it will get the next version before the first one has landed. | 16:12 |
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| jungleboyj | smcginnis: Ok. So, lets try to get the attachment mode one in today and then get through the other one if possible tomorrow/Friday? | 16:13 |
| smcginnis | ++ | 16:14 |
| tommylikehu | ++ | 16:14 |
| jungleboyj | Ok. I will look at the attachment mode after the meeting. | 16:14 |
| e0ne | +1 | 16:14 |
| smcginnis | Would be good if jgriffith can take a quick look at my updates on that too, if possible. | 16:14 |
| jungleboyj | I would say no -1 unless there is a major issue. Can always do a follow up fix. | 16:15 |
| jungleboyj | jgriffith: ^^^ | 16:15 |
| smcginnis | jungleboyj: True, we can always fix up little issues afterwards. | 16:15 |
| jungleboyj | smcginnis: Thanks for driving that work. | 16:16 |
| smcginnis | Just trying to move things along. | 16:16 |
| jungleboyj | It is appreciated. | 16:16 |
| smcginnis | Ya know, since jgriffith is such a deadbeat and all. :P | 16:16 |
| jungleboyj | Anything else along those lines? | 16:16 |
| jungleboyj | Such a deadbeat. | 16:17 |
| smcginnis | Nothing else that I'm aware of at the moment. | 16:17 |
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| jungleboyj | Ok and nothing from else from a release schedule? | 16:18 |
| jungleboyj | Ok. Moving on. | 16:19 |
| jungleboyj | #topic Rocky Priorities Review. | 16:19 |
| *** openstack changes topic to "Rocky Priorities Review. (Meeting topic: Cinder)" | 16:19 | |
| jungleboyj | So, we have kind-of already taken care of this. | 16:19 |
| jungleboyj | I have started creating the Stein section of the document. | 16:19 |
| jungleboyj | #link https://etherpad.openstack.org/p/cinder-spec-review-tracking | 16:19 |
| jungleboyj | Please take a look, if you have concerns or changes go ahead and make them. | 16:20 |
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| jungleboyj | Any questions there? | 16:20 |
| jungleboyj | #topic Weekly Harassment of geguileo | 16:20 |
| *** openstack changes topic to "Weekly Harassment of geguileo (Meeting topic: Cinder)" | 16:21 | |
| e0ne | :) | 16:21 |
| geguileo | sorry, no news | 16:21 |
| jungleboyj | geguileo: I reviewed the document on HA. | 16:21 |
| geguileo | but I'll update the spec today | 16:21 |
| geguileo | jungleboyj: awesome! | 16:21 |
| jungleboyj | geguileo: Good work there. Thank you! | 16:21 |
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| geguileo | jungleboyj: I'll look at your review later and update the spec with all the pending reviews | 16:21 |
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| jungleboyj | geguileo: Sounds great. That would be good to get in as part of this release too. | 16:22 |
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| geguileo | jungleboyj: +1 | 16:22 |
| jungleboyj | geguileo: Regardless, that is good progress. | 16:22 |
| geguileo | I'll ping all reviewers once I submit new patch | 16:22 |
| jungleboyj | Sounds like a plan. | 16:22 |
| jungleboyj | We can move on then. | 16:22 |
| jungleboyj | #topic About readding the block device driver. | 16:23 |
| *** openstack changes topic to "About readding the block device driver. (Meeting topic: Cinder)" | 16:23 | |
| jungleboyj | Rambo: | 16:23 |
| Rambo | https://docs.google.com/spreadsheets/d/1DzmktV7IRyXyv2BqZ2iCUDLjB-r2M-WMniXbPrTsOMw/edit?usp=sharing | 16:23 |
| Rambo | The result shows LVM's IOPS is twice as bad than block device driver.More than,The block device driver is better than LVM+LIO in principle.The LVM+LIO has to through network. | 16:23 |
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| Rambo | If anyone persist to believe the LVM+LIO is better than block device driver,please show me your test data.Thank you! | 16:23 |
| e0ne | as a former BDD maintainer, I vote to not re-add this again :( | 16:23 |
| jungleboyj | #link https://docs.google.com/spreadsheets/d/1DzmktV7IRyXyv2BqZ2iCUDLjB-r2M-WMniXbPrTsOMw/edit?usp=sharing | 16:24 |
| e0ne | Rambo: you can use this driver as out of tree driver | 16:24 |
| smcginnis | If someone can figure out a way to make it work with the minimum required feature set for a Cinder driver, feel free to propose it. | 16:24 |
| smcginnis | e0ne: ++ | 16:24 |
| jungleboyj | smcginnis: ++ | 16:24 |
| Rambo | why?<e0ne> | 16:25 |
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| smcginnis | Why use it as an out of tree driver? | 16:25 |
| e0ne | minimum features set, infra limitations for CI, not really cloud solution | 16:25 |
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| smcginnis | e0ne: ++ (again) | 16:25 |
| jungleboyj | smcginnis: Is it possible for the driver to be made to meet the minimum requirements? | 16:25 |
| Rambo | in my opinion,the BlockDeviceDriver is more suitable than any other solution for data processing scenarios. | 16:25 |
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| smcginnis | jungleboyj: I don't believe so, but if someone wants to figure that out, more power to them. | 16:26 |
| e0ne | jungleboyj, smcginnis: it' absolutely doable, AFAIR | 16:26 |
| jungleboyj | e0ne: Ok. | 16:26 |
| smcginnis | Well, it would take a lot of work. | 16:26 |
| e0ne | but it will be very slow doing snapshots and not optimal storage usage | 16:26 |
| jungleboyj | So, it sounds like the answer here is pretty simple. | 16:27 |
| smcginnis | Yep | 16:27 |
| jungleboyj | Rambo: Nothing stops you from using it out of tree and if you want it in tree you can propose it with the appropriate requirements met. | 16:27 |
| e0ne | Rambo: I can share a doc with you how to use it out of tree if its' acceptable use-case for you | 16:27 |
| Rambo | ok,thank you,but the bdd is better than lvm | 16:28 |
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| Rambo | why you don't agree readd? | 16:29 |
| e0ne | Rambo: NVMe is a good replacement for BDD, but it requires new hardware | 16:29 |
| jungleboyj | Rambo: Because we have a list of minimum funationality to be a driver. | 16:29 |
| smcginnis | Rambo: We've told you a few times why. | 16:29 |
| jungleboyj | The BDD does not meet those requirements. | 16:29 |
| Rambo | oh | 16:30 |
| jungleboyj | Rambo: So, e0ne can send you information on how to use it for your purposes. | 16:30 |
| e0ne | #link https://review.openstack.org/#/c/398739/ | 16:30 |
| Rambo | please share the doc,thank you | 16:30 |
| jungleboyj | If you want to add it back in tree then you will need to rework the driver to meet the minimum requirements. | 16:30 |
| Rambo | ok,I learn | 16:31 |
| e0ne | afair, it met minimum requirements, but CI wasn't stable | 16:31 |
| jungleboyj | e0ne: Hmmm, that might be true too. | 16:31 |
| jungleboyj | I don't remember for sure. | 16:32 |
| Rambo | Does the community will agree to merge the BlockDeviceDriver to the Cinder repository again if our company hold the maintainer and CI? | 16:32 |
| e0ne | I was hitting with CI for months :( | 16:32 |
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| smcginnis | e0ne: It couldn't do snapshots too. | 16:32 |
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| jungleboyj | Rambo: I think we would be open to it. | 16:32 |
| e0ne | smcginnis: we used dd to make snapshots :( | 16:32 |
| jungleboyj | Rambo: You are welcome to propose it. | 16:32 |
| jungleboyj | smcginnis: e0ne any objection? | 16:33 |
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| e0ne | jungleboyj: there are no objections from my side. we've got the same requirements for all drivers | 16:33 |
| jungleboyj | e0ne: Ok, that was kind of my thought. | 16:34 |
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| tommylikehu | Rambo: what's your company? | 16:34 |
| e0ne | I will not -2 on it, but jgriffith could | 16:34 |
| jungleboyj | Ok. So I think we have answered the questions there and covered that topic. | 16:34 |
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| Rambo | ok,let me think deeply | 16:34 |
| jungleboyj | e0ne: Possibly. He is awol right now though. :-) | 16:34 |
| jungleboyj | Rambo: Ok. What is your company? | 16:34 |
| Rambo | the unitedstack | 16:34 |
| Rambo | do you know? | 16:35 |
| e0ne | from my point of view, NVMe is better but it requires some additional expensive hardware | 16:35 |
| tommylikehu | Rambo: No, thanks :) | 16:35 |
| jungleboyj | e0ne: Yeah, lots of people going that direction. | 16:35 |
| Rambo | what is NVMe?Can you tell me more? | 16:35 |
| Rambo | thank you | 16:36 |
| e0ne | Rambo: we've got NVMeT driver | 16:36 |
| smcginnis | Rambo: https://en.wikipedia.org/wiki/NVM_Express | 16:36 |
| Rambo | oh | 16:36 |
| e0ne | Rambo: it requires NVMe SSDs and NICs with RDMA support | 16:36 |
| jungleboyj | We can take that discussion to the channel after the meeting. | 16:36 |
| Rambo | Sorry,I don't know it | 16:37 |
| Rambo | ok | 16:37 |
| smcginnis | jungleboyj: ++ | 16:37 |
| jungleboyj | #topic: SPDK NVMf target and volume drivers in Rocky (Stein?) release as a part as an NVMf support | 16:37 |
| *** openstack changes topic to ": SPDK NVMf target and volume drivers in Rocky (Stein?) release as a part as an NVMf support (Meeting topic: Cinder)" | 16:37 | |
| jungleboyj | mszwed: All you. | 16:37 |
| mszwed | I've been working on Storage Performance Development Kit (SPDK) NVMe-oF volume and target drivers as an extension of kernel NVMf driver which was merged not so long ago. I would like to propose to add this drivers to kernel NVMf blueprint and release them with Rocky. | 16:37 |
| smcginnis | mszwed: It's way past the deadline for Rocky, unfortunately. | 16:38 |
| e0ne | it's pretty late for it in Rocky | 16:38 |
| * e0ne likes NVMe stuff a lot | 16:38 | |
| jungleboyj | mszwed: Way too late. | 16:38 |
| smcginnis | #link https://releases.openstack.org/rocky/schedule.html#r-cinder-driver-deadline | 16:38 |
| mszwed | I see | 16:38 |
| jungleboyj | Would love to get it in early in Stein though. | 16:38 |
| e0ne | mszwed: btw, do you have CI for it? | 16:38 |
| mszwed | not yet | 16:38 |
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| e0ne | mszwed: we can't merge it without CI :( | 16:39 |
| jungleboyj | e0ne: | 16:39 |
| jungleboyj | ++ | 16:39 |
| mszwed | but I was talking with people responsible for NVMeT and their want to cooperate to make CI for SPDK drivers | 16:39 |
| tushargohad | eOne: we decided to share the MLNX CI | 16:39 |
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| e0ne | tushargohad: cool! | 16:39 |
| tushargohad | eOne, smcginnis: the patches have been up for review for quite a while | 16:39 |
| smcginnis | mszwed: Have you read through the docs here? https://wiki.openstack.org/wiki/Cinder/how-to-contribute-a-driver | 16:40 |
| tushargohad | and we were wondering if this can be treated as an alternative NVMe-oF implementation | 16:40 |
| mszwed | smcginnis: yes | 16:40 |
| smcginnis | mszwed: I would focus on that CI requirement then and then hopefully we can get it in early in Stein. | 16:40 |
| tushargohad | eOne, smcginnis: mszwed developed this in parallel with the NVMeT driver, it just never made the review | 16:40 |
| jungleboyj | smcginnis: ++ | 16:40 |
| e0ne | tushargohad: you know, I'm really want to get it merged, but the deadline was more than one month ago | 16:41 |
| jungleboyj | tushargohad: Ok but there is no CI and this was not held up as a driver to get on our review list. | 16:41 |
| jungleboyj | https://etherpad.openstack.org/p/cinder-spec-review-tracking | 16:42 |
| jungleboyj | #link https://etherpad.openstack.org/p/cinder-spec-review-tracking | 16:42 |
| e0ne | tushargohad: I'll be happy to help you and mszwed to get it merged early in Stein | 16:42 |
| smcginnis | Some review can happen beforehand, but until there is at least a sign of CI being set up, not likely to get much attention. | 16:42 |
| e0ne | smcginnis: +1 | 16:42 |
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| jungleboyj | So, we can get it on that list now, and work to get it into Stein. | 16:42 |
| smcginnis | List or not, the documentation for adding a new driver needs to be followed. | 16:42 |
| tushargohad | smcginnis, jungleboyj, eOne: sounds good. Let me review the CI status -- the last time MLNX folks, eOne and us at Intel reviewed, MLNX CI was what was going to be used | 16:42 |
| jungleboyj | smcginnis: ++ | 16:43 |
| jungleboyj | tushargohad: Ok. Thanks. | 16:43 |
| tushargohad | we may not have a gap on the CI side unless there is a requirement specifically for the SPDK implementation (technically there isn't -- kernel and SPDK implementations can be tested in the same setup) | 16:43 |
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| mszwed | yes, they fallow the same rules | 16:44 |
| mszwed | so it should work with both implementations | 16:44 |
| smcginnis | A CI needs to run a test with a running deployment using that configuration. | 16:44 |
| mszwed | OK, let's (me and tushargohad) work on CI. Is their a chance to have still in Rocky if we have CI up and running, let's say, next week? | 16:45 |
| tushargohad | smcginnis: ok thanks ... mszwed and I will review | 16:45 |
| smcginnis | mszwed: No | 16:45 |
| mszwed | *their/there | 16:45 |
| jungleboyj | tushargohad: No. | 16:45 |
| jungleboyj | Too large a change to get in at this point in the process. | 16:46 |
| smcginnis | Too far past the published deadline. | 16:46 |
| mszwed | ok | 16:46 |
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| tushargohad | jungleboyj, smcginnis: ok no problem -- we'll appreciate if this gets reviews ahead of Stein | 16:47 |
| jungleboyj | mszwed: We will be publishing the schedule for Stein before too long so you will want to pay attention to the new driver deadline. | 16:47 |
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| smcginnis | It should get more review attention once the driver requirements are met. | 16:47 |
| jungleboyj | smcginnis: ++ | 16:47 |
| jungleboyj | Ok, so moving on. | 16:47 |
| mszwed | jungleboyj: Ok, I will do | 16:47 |
| e0ne | jungleboyj: let's mention deadline for target driver the same as for drivers | 16:48 |
| jungleboyj | #topic Open Discussion | 16:48 |
| *** openstack changes topic to "Open Discussion (Meeting topic: Cinder)" | 16:48 | |
| jungleboyj | e0ne: ++ | 16:48 |
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| jungleboyj | Anyone have other topics for today? | 16:48 |
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| jungleboyj | Going ... going .... | 16:49 |
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| jungleboyj | Gone. | 16:49 |
| e0ne | see you next week! | 16:49 |
| jungleboyj | Ok, so lets wrap up. Sean and I will work on getting those last features in. | 16:49 |
| jungleboyj | Please start testing and fixing bugs. | 16:50 |
| jungleboyj | Look forward to talking to you all next week. | 16:50 |
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| jungleboyj | #endmeeting. | 16:50 |
| tommylikehu | see you! | 16:50 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 16:50 | |
| openstack | Meeting ended Wed Jul 18 16:50:24 2018 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 16:50 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-07-18-16.00.html | 16:50 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-07-18-16.00.txt | 16:50 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-07-18-16.00.log.html | 16:50 |
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| mszwed | thanks, bye! | 16:50 |
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| notmyname | #startmeeting swift | 21:00 |
| openstack | Meeting started Wed Jul 18 21:00:30 2018 UTC and is due to finish in 60 minutes. The chair is notmyname. Information about MeetBot at http://wiki.debian.org/MeetBot. | 21:00 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 21:00 |
| *** openstack changes topic to " (Meeting topic: swift)" | 21:00 | |
| openstack | The meeting name has been set to 'swift' | 21:00 |
| notmyname | who's here for the swift team meeting? | 21:00 |
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| m_kazuhiro | o/ | 21:00 |
| rledisez | hi o/ | 21:01 |
| mattoliverau | o/ | 21:01 |
| notmyname | wecome | 21:01 |
| notmyname | agenda this week is pretty much the same as last, so it should go quickly, I think | 21:02 |
| notmyname | #link https://wiki.openstack.org/wiki/Meetings/Swift | 21:02 |
| tdasilva | hi | 21:02 |
| notmyname | https://review.openstack.org/#/c/427911/ and https://review.openstack.org/#/c/447129 are two patches I'm watching to hope they land soon | 21:02 |
| patchbot | patch 427911 - swift - Replace MIME with PUT+POST for EC and Encryption | 21:02 |
| patchbot | patch 447129 - swift - Configure diskfile per storage policy | 21:02 |
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| notmyname | zaitcev: hello | 21:03 |
| notmyname | I'd just mentioned https://review.openstack.org/#/c/427911/ | 21:04 |
| patchbot | patch 427911 - swift - Replace MIME with PUT+POST for EC and Encryption | 21:04 |
| notmyname | how's that patch going? do you need any help? | 21:04 |
| zaitcev | I need to rebase it, because its (only) dependency was merged, thanks to Matt. | 21:04 |
| zaitcev | Otherwise it's perfect | 21:04 |
| notmyname | cool | 21:05 |
| notmyname | that sounds like pretty good news | 21:05 |
| zaitcev | Alistair didn't like the dot-in-path. I never understood his argumentation against it... Possibly it injured his sense of the proper design. He has an alternative, based on Content-Type. | 21:05 |
| notmyname | yeah, he and I talked about those options. or maybe just in the etherpad | 21:06 |
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| notmyname | https://etherpad.openstack.org/p/swift-put-post | 21:06 |
| zaitcev | That patch looks okay to me. A previous version had a fatal flaw: it wasn't future-proof. He promised to fix that, I need to verify. | 21:06 |
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| notmyname | ok | 21:07 |
| zaitcev | https://review.openstack.org/582298 | 21:07 |
| patchbot | patch 582298 - swift - PUT+POST: Detect older object server by not sendin... | 21:07 |
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| zaitcev | notmyname: you can break our tie as our leader! | 21:07 |
| mattoliverau | There's a lot to get into my head there, I'll try and read up on the patches and give em a test and review | 21:08 |
| tdasilva | same here | 21:08 |
| notmyname | mattoliverau: tdasilva: thanks | 21:08 |
| zaitcev | Oh come on. It's like 7% complexity level of EC. | 21:08 |
| zaitcev | Or maybe 4% | 21:09 |
| mattoliverau | Lol | 21:09 |
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| notmyname | anything else to bring up on that patch functionality? | 21:09 |
| notmyname | on https://review.openstack.org/#/c/447129, IIRC clayg said he was going to look at it, but I know he's been busy with other stuff | 21:11 |
| patchbot | patch 447129 - swift - Configure diskfile per storage policy | 21:11 |
| notmyname | m_kazuhiro: could you review that patch please? | 21:11 |
| m_kazuhiro | ok | 21:11 |
| notmyname | thank you | 21:11 |
| notmyname | mattoliverau: you'll be pushing a small update to https://review.openstack.org/#/c/541058/, right? | 21:12 |
| patchbot | patch 541058 - swift - Add fallocate_reserve to account and container ser... | 21:12 |
| notmyname | and then landing it? | 21:12 |
| mattoliverau | Yup, pushed up one with a comment last night | 21:13 |
| notmyname | oh, ocol | 21:13 |
| notmyname | but were you going to +2/+A? | 21:13 |
| mattoliverau | Was waiting for Gerrit | 21:13 |
| notmyname | ah | 21:13 |
| mattoliverau | Will do it after breakfast :) | 21:14 |
| notmyname | kk | 21:14 |
| notmyname | looks like a probe test failure. not sure if real or not | 21:14 |
| zaitcev | well | 21:14 |
| zaitcev | I noticed we're getting a ton of those probe tests failures recently, especially sharder related. | 21:14 |
| notmyname | hmm | 21:15 |
| tdasilva | mm..clayg pointed me to that failure last week on another patch | 21:15 |
| zaitcev | At first I thought I induced them, but trunk is the same | 21:15 |
| notmyname | ok, so something else to track down | 21:15 |
| notmyname | I made a note | 21:16 |
| notmyname | as a reminder, I'll propose an authors/changelog patch for python-swiftclient. it needs to be tagged next week | 21:17 |
| notmyname | if there's anything you want in swiftclient, please work with someone to get it landed this week | 21:17 |
| notmyname | (all the current open stuff that was ready to land has already landed) | 21:17 |
| mattoliverau | Maybe we need a section on priority reviews about bugs and investigations. There are a few sharing ones I'd like to look into when I have the time. | 21:17 |
| mattoliverau | Ie somewhere to put the note | 21:17 |
| notmyname | mattoliverau: good idea. I had a couple of bugs listed at the bottom | 21:17 |
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| notmyname | but yeah, I'll do that | 21:17 |
| zaitcev | In the times before PUT+POST, I pooh-pooed probe tests. But during PUT+POST there was a time when we had functests passing, but probe tests broke and it totally was my fault. After that I realized that functests aren't good enough. BTW, not in-process. Even real functests. | 21:18 |
| notmyname | much better than in my own todo list :-) | 21:18 |
| notmyname | tests are great! | 21:18 |
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| notmyname | anything else to bring up in today's meeting? | 21:19 |
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| notmyname | all right. let's end the meeting then | 21:21 |
| notmyname | thanks for your work on swift! | 21:21 |
| notmyname | #endmeeting | 21:21 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 21:21 | |
| openstack | Meeting ended Wed Jul 18 21:21:27 2018 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 21:21 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-07-18-21.00.html | 21:21 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-07-18-21.00.txt | 21:21 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-07-18-21.00.log.html | 21:21 |
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