Monday, 2018-02-05

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openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Use yarn and webpack to manage zuul-web javascript  https://review.openstack.org/53809903:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Add babel transpiling enabling use of ES6 features  https://review.openstack.org/53812503:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Add StandardJS linting and analysis  https://review.openstack.org/53812603:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Fix source_url handling for jobs view  https://review.openstack.org/53812703:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Fix StandardJS warnings and turn them to errors  https://review.openstack.org/53812803:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Add bundle analysis to the lint target  https://review.openstack.org/53812903:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Inject url endpoint information  https://review.openstack.org/53813003:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Make bundle of build web content  https://review.openstack.org/53813103:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: Remove use strict  https://review.openstack.org/53813203:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: web: add /{tenant}/jobs/{job_name} route  https://review.openstack.org/53554503:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: web: add jobs graph rendering  https://review.openstack.org/53786903:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: web: /{tenant}/projects.json routes  https://review.openstack.org/53787003:01
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: web: add project pipeline rendering  https://review.openstack.org/53787103:01
openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Refactor run_handler to be generic  https://review.openstack.org/53555403:18
openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Refactor NodeLauncher to be generic  https://review.openstack.org/53555503:18
openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Implement an OpenContainer driver  https://review.openstack.org/53555603:18
openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Implement a Kubernetes driver  https://review.openstack.org/53555703:18
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openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Add /node-list to the webapp  https://review.openstack.org/53556203:35
openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Add /label-list to the webapp  https://review.openstack.org/53556303:35
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openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add buildset-artifacts-location  https://review.openstack.org/53067905:31
openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add recursive-download  https://review.openstack.org/54071605:40
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openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add linters job and role  https://review.openstack.org/53068205:47
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openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add ansible-lint job  https://review.openstack.org/53208305:50
openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add ansible-review job  https://review.openstack.org/53522305:52
openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add ansible-upload-to-galaxy job  https://review.openstack.org/53208405:57
openstackgerritTristan Cacqueray proposed openstack-infra/zuul-jobs master: Add ansible-spec job  https://review.openstack.org/53208505:59
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openstackgerritliusheng proposed openstack-infra/zuul master: Fix AttributeError when handle periodic job with github driver  https://review.openstack.org/53664507:16
openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: mqtt: add basic reporter  https://review.openstack.org/53554307:18
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openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: config: add statsd-server config parameter  https://review.openstack.org/53556007:21
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openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: Refactor run_handler to be generic  https://review.openstack.org/53555408:12
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059508:30
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openstackgerritTobias Henkel proposed openstack-infra/zuul master: WIP: Status branch protection checking for github  https://review.openstack.org/53568008:55
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059508:58
openstackgerritTobias Henkel proposed openstack-infra/zuul master: WIP: Status branch protection checking for github  https://review.openstack.org/53568009:03
openstackgerritTobias Henkel proposed openstack-infra/zuul master: Fix github connection for standalone debugging  https://review.openstack.org/54077209:06
openstackgerritTobias Henkel proposed openstack-infra/zuul master: Enhance github debugging script for apps  https://review.openstack.org/54077409:11
hughsaundersodyssey4me: I think this is the lifecycle I was looking for, at least the basics https://github.com/openstack-infra/zuul/blob/master/tests/nodepool/test_nodepool_integration.py#L53-L8209:51
odyssey4mehughsaunders aha, yay for tests!10:03
hughsaundersyeah :)10:04
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tobiashcorvus, mordred: just verified that the zuul-web changes we rushed in on friday work10:25
tobiashand it works in my test env :)10:26
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openstackgerritTobias Henkel proposed openstack-infra/zuul master: Enhance github debugging script for apps  https://review.openstack.org/54077411:22
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openstackgerritTristan Cacqueray proposed openstack-infra/nodepool master: config: add statsd-server config parameter  https://review.openstack.org/53556013:21
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openstackgerritTristan Cacqueray proposed openstack-infra/zuul master: mqtt: add basic reporter  https://review.openstack.org/53554313:30
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mordredtobiash: woot!14:40
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openstackgerritDoug Hellmann proposed openstack-infra/zuul-jobs master: add debug info to mirror-workspace-git-repos  https://review.openstack.org/54088015:07
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openstackgerritJames E. Blair proposed openstack-infra/zuul master: Increase test timeout  https://review.openstack.org/54088915:31
openstackgerritAndrea Frittoli proposed openstack-infra/zuul-jobs master: Remove support for extensions as lists  https://review.openstack.org/54089015:32
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openstackgerritMerged openstack-infra/zuul-jobs master: add debug info to mirror-workspace-git-repos  https://review.openstack.org/54088016:06
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openstackgerritPaul Belanger proposed openstack-infra/nodepool master: Add unit test for multiple launchers  https://review.openstack.org/54091616:16
pabelangercorvus: tobiash: Shrews: clarkb: ^ a base test to test multiple launchers for nodepool. Also showing current behavior of min-ready across launchers.16:17
pabelangergoing to build a top of that and see how to to have min-ready=1 be 1 node over multiple launchers16:17
openstackgerritPaul Belanger proposed openstack-infra/nodepool master: Add unit test for multiple launchers  https://review.openstack.org/54091616:18
rcarrillocruzwait16:20
rcarrillocruzis zuul-web webpack and all merged already16:21
rcarrillocruz?16:21
rcarrillocruztobiash , mordred ^16:21
mordredrcarrillocruz: no - I'll be wokring on finishing that up today16:21
rcarrillocruzack16:21
rcarrillocruzi stopped containerizing the zuul-web stuff since you were on that16:21
rcarrillocruzthx16:22
* rcarrillocruz needs to get back to zuul-ci-container soon16:22
pabelangerShrews: I'm going to get the terminology wrong, hopefully you can correct me. When we create a NodePool:min-ready request, is there any way we can lock that, so other provider cannot also create one?  As a way to have each launcher first check if that is locked before submitting their request?16:31
clarkbpabelanger: Shrews we could probably do it in a cheap and mostly effective way of just scanning the node list in zk for ready nodes of label foo16:32
clarkbcount them all and if we have min ready ready don't launch any more16:32
clarkbit will be racy but should mostly work out since goal is keeping enough fresh instances around to reduce reaction time16:32
Shrews clarkb: that's how it works now16:32
clarkbah ok for some reason I thought it only checked the current provider and not all providers16:33
ShrewsAt a chiropractor appt now but can expand more when I get back to a computer16:33
pabelangersure16:34
pabelangerclarkb: yah, you can see the race in 540916 logs16:34
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Shrewspabelanger: yeah, so, coordination between launchers has been a "next version" goal for a while. Happy to have you work on that though.17:06
openstackgerritMonty Taylor proposed openstack-infra/zuul-jobs master: Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54093417:06
Shrewspabelanger: that's going to involve locking "something" to enable that coordination17:06
tobiashShrews, pabelanger: maybe locking a node describing the pool itself?17:13
pabelangerShrews: tobiash: sorry, lunch. Yah, I'd be interested in seeing how we'd do it. And happy to learn more and see if I could write the patch17:23
pabelangereasier to do with testing now in place :)17:23
Shrewspabelanger: i'm interested to see how we'd do it too  :)17:23
pabelangerha17:24
Shrewsit hasn't been discussed or thought about (at least by me), so a solution is up in the air still17:24
pabelangerack17:24
Shrewstobiash: responded to your question on https://review.openstack.org/535899. i'd like to see us get that merged soon-ish17:26
tobiashShrews: +2 from me17:30
Shrewstobiash: http://logs.openstack.org/99/535899/14/check/nodepool-functional-py35/35b5a19/job-output.txt.gz#_2018-02-05_15_02_36_075534 shows that it's using the source from the review17:31
tobiashah, ok17:31
openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Test Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54094517:32
openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54093417:43
openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Revert "Test Use item.checkout from zuul.projects when mirroring"  https://review.openstack.org/54095017:45
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openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: DNM: Test new mirror-workspace-git-repos role  https://review.openstack.org/54095217:49
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openstackgerritMerged openstack-infra/zuul-jobs master: Test Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54094518:27
openstackgerritJames E. Blair proposed openstack-infra/zuul master: Allow a few more starting builds  https://review.openstack.org/54096518:38
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corvustobiash, mordred: ^ can you look at that?18:38
tobiashlooking18:43
openstackgerritAndreas Jaeger proposed openstack-infra/zuul master: Update nodepool-integration for Zuul v3  https://review.openstack.org/54096718:44
tobiashcorvus: +2 left +3 to you18:44
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059518:45
corvusclarkb: can you +3 https://review.openstack.org/540889  please?18:46
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ShrewsWould anyone have any issues with turning the nodepool devstack plugin files (devstack/plugin.sh and devstack/settings) into jinja templates? I'm trying to devise a way to specify the default image via an ansible var rather than environment variables18:58
Shrews(not sure i actually want to do that just yet, but considering it)19:01
clarkbShrews: considering that is an interface defined by devstack I think we should avoid that. You should be able to run devstack + nodepool without ansible or zuul19:01
openstackgerritMerged openstack-infra/zuul master: Increase test timeout  https://review.openstack.org/54088919:02
clarkbShrews: devstack uses env vars so I think thats the way we go about it? you might be able to clean that up in the job by using the native devstack localrc stuff though19:03
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AJaegerso, nodepool / zuul integration tests fail now with Zuul v3 native job the same way as with old job.19:07
AJaegerteam, could you review https://review.openstack.org/540967 and https://review.openstack.org/540595 , please?19:08
openstackgerritJames E. Blair proposed openstack-infra/zuul master: Allow a few more starting builds  https://review.openstack.org/54096519:12
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openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Fix error in test-mirror-workspace-git-repos  https://review.openstack.org/54097719:17
ShrewsAJaeger: why do we need the "zuul | zuul_legacy_vars" environment vars?19:17
AJaegerShrews: Just wondering that myself - let's remove it and test again...19:18
ShrewsAJaeger: k. i left another comment in the review19:18
AJaegerShrews: answered your comment19:18
Shrewsack19:18
ShrewsAJaeger: oh right. that script is in zuul19:19
AJaegeryes19:19
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059519:19
AJaegerShrews: ^19:19
openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54093419:21
openstackgerritMerged openstack-infra/zuul master: Update nodepool-integration for Zuul v3  https://review.openstack.org/54096719:24
ShrewsAJaeger: the example here for another project's src_dir might be more future proof: https://docs.openstack.org/infra/zuul/user/jobs.html#var-zuul.projects.checkout19:25
AJaegerShrews: I can update...19:26
AJaegereditor is still open - thanks, didn't know this syntax19:26
AJaegerShrews, is this the right value: '{{ zuul.projects['git.openstack.org/openstack-infra/zuul'].src_dir }}' ?19:27
ShrewsAJaeger: neither did I  :)  figured there had to be some other way19:27
ShrewsAJaeger: i *think* so19:27
AJaegerlet's try ;)19:27
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059519:29
openstackgerritAndreas Jaeger proposed openstack-infra/nodepool master: Convert nodepool-zuul-functional job  https://review.openstack.org/54059519:30
AJaegerShrews: so, fails at same place as before - so, changes are fine ^19:38
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openstackgerritDavid Shrewsbury proposed openstack-infra/zuul master: Fix nodepool integration tests  https://review.openstack.org/54098319:44
corvusclarkb: can i get a re-review on https://review.openstack.org/540965 ?  i fixed the test to accomodate the change19:44
ShrewsAJaeger: https://review.openstack.org/540983 hopefully fixes that19:45
openstackgerritMerged openstack-infra/zuul-jobs master: Fix error in test-mirror-workspace-git-repos  https://review.openstack.org/54097719:48
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AJaegergreat, Shrews !20:02
corvusi'm looking at ze02 at 16:20.  cacti says we're using 7.12G of ram (out of 8G == 89% used).  the ram governor in the executor reports 59% available (or 41% used).  those numbers don't seem to be anywhere near each other.20:12
corvushttp://cacti.openstack.org/cacti/graph.php?action=zoom&local_graph_id=64155&rra_id=0&view_type=tree&graph_start=1517847537&graph_end=1517849173&graph_height=120&graph_width=500&title_font_size=1220:12
corvushttp://grafana.openstack.org/dashboard/db/zuul-status?from=1517847487131&to=151784897229720:12
corvuswe may need to look into what we're using for the ram calculation a bit deeper20:13
corvus(at 16:40 the log streamer was oom-killed)20:13
clarkbcorvus: the buffers and cache probably don't count in the govnernor?20:13
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corvusclarkb: the commit message said it 'does not take into account buffers or cache which could be reclaimed'.  iiuc, that means it should be even more conservative than the cacti data, but it's the opposite.20:16
corvuscould it be including swap in the total?20:17
clarkb41% used implies ^ is a good guess assuming swap size is equal to ram size20:17
corvusthey are equal20:17
corvusif i redo that math based on those assumptions, i get 45% used20:19
corvusthat's pretty close to the 41% used reported.20:19
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openstackgerritJames E. Blair proposed openstack-infra/zuul-jobs master: Revert "Test Use item.checkout from zuul.projects when mirroring"  https://review.openstack.org/54095020:59
openstackgerritMerged openstack-infra/zuul-jobs master: Use item.checkout from zuul.projects when mirroring  https://review.openstack.org/54093420:59
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fungidmesg on ze02 now shows that it oom-killed a git process as recently as 18:3521:08
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dmsimardzuul meeting in ~6 minutes ?21:53
jheskethMorning21:55
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corvusi think i need to discard all of my thinking about the ram governor and ze02 earlier.  it looks like cacti isn't reliably getting data from ze02, so i'm not sure i can trust my reading of the graph earlier.21:57
corvusthe data from the executor, via psutil and graphite, should actually match up.21:57
corvusi'll try to confirm that on one of the other hosts.21:57
corvusmeanwhile ze02 is interesting in that it seems to be the only one with the reporting issues, as well as the only one that has oom'd21:58
clarkbdmsimard: yes now 2 minutes21:58
corvuszuul meeting time in #openstack-meeting-alt22:00
ShrewsI'll plan to restart the launchers in the morning when I can be around to watch them all day.22:18
Shrewsbut i don't expect problems22:18
corvusShrews: thanks!22:18
pabelangerShrews: tobiash: https://review.openstack.org/536930/ would be a nice to have, still failing tests. To fix quota issue we see in citycloud.22:18
pabelangercorvus: too^22:19
Shrewspabelanger: I'd prefer that not go in when I'm going to be away for a week22:20
pabelangerShrews: ack, we can likely -2 it then22:20
Shrewspabelanger: i mean, we can totally merge it if you can get it to pass tests, but i won't be around to help diagnose/fix if things go awry   :)22:22
pabelangerShrews: yah, a good reason not to do it then22:22
Shrewshttps://review.openstack.org/540983 timing out on the nodepool-zuul-integration test is perplexing22:24
Shrewsthe log is not helpful either: http://logs.openstack.org/83/540983/1/experimental/nodepool-zuul-functional/ddc8517/job-output.txt.gz#_2018-02-05_20_19_20_42795222:25
clarkbmight be good to capture the testr logs there22:30
corvusokay, i've determined that the percent available/used that the executor is reporting is basically what you'd get by looking at the 'available' column in free.  which is generally the thing we want.  it's also what the cacti graph is trying to do, but we are missing an important bit of data from cacti....22:35
corvuscacti calculates used with total-free-cache-buffers, which is almost how free calculates available -- free+cache+buffers+reclaimable_slab22:36
corvusso there is a discrepancy between cacti and psutil, and it's due to reclaimable slab memory22:36
corvuswhich includes the kernels inode cache.  that's 2G on ze03 right now.22:36
clarkbthat is a lot of inodes22:37
corvusat any rate, that leads me to accept the 'percent free' value with some more confidence, and i think we can mostly set aside cacti for now and just look at graphite22:38
fungiwow22:38
clarkbnot entirely suprising considering we had to bump up inode count on those filesystems22:38
corvusbut if we look at ze02 at 16:40, it reports 61.5% available memeroy22:38
corvusi don't know what the relative proportions of the constituents are -- it's probably safe to assume 'free' is small -- it usually is.  but at the very least, there was still 3.2G of reclaimable ram -- why would it oom?22:39
clarkboomkiller operates off of cgroup levels now iirc. Possibly that that is set too aggresively by default?22:40
clarkbbasically it can be invoked far below the 100% memory used case22:41
clarkbI would be surprised if ubuntu set it to a low value but could be one explanation22:41
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corvusclarkb: this is interesting ... know how to debug further?22:49
corvusi wonder if there's any relevant info in the oom-keller kernel messages about it...?22:50
clarkbcorvus: ya let me look at my local system real quick22:50
clarkbcorvus: look in /sys/fs/cgroup/memory and there should be attributes like memory.limit_in_bytes22:52
corvusthat is very high on ze0222:52
clarkboh! since bwrap is running these processes they likely have their own cgroups so you may need to look in /sys/fs/cgroup/memory/$groupnameforcontainer22:52
corvus8191 petabytes22:53
clarkbI think that is the hierarchy?22:53
clarkb/sys/fs/cgroup/memory/system.slice/zuul-executor.service looks to be the path for the executor22:53
clarkb6701445120 is the number there which is smaller22:54
clarkber thats usage not limit22:54
clarkbya limit is huge thre too22:54
corvusi think that's what systemd set up for it22:54
clarkbso ya I don't think that is the issue but does rule out one thing that can influence oomkiller invocation22:55
clarkbmemory.oom_control is something that might be useful to us though22:55
corvusyeah, though i'd like to end up with 'stop killing things' rather than 'kill something else'22:55
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corvusi was curious about the flags in:23:15
corvusFeb  5 16:40:25 ze02 kernel: [141779.382764] git invoked oom-killer: gfp_mask=0x26000c0, order=2, oom_score_adj=023:16
corvusthe gfp_mask is: ___GFP_NOTRACK; ___GFP_DIRECT_RECLAIM; ___GFP_IO; ___GFP_FS23:16
corvuswhich means: avoid tracking with kmemcheck; caller may enter direct reclaim; can start physical io, can call down to low-level fs.23:16
corvusnone of those jump out at me as suggesting that the kernel couldn't use the memory it had available23:17
corvuswhich included slab_reclaimable:1995768kB23:17
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clarkbcorvus: internet says https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842 may be related23:19
openstackLaunchpad bug 1655842 in linux-aws (Ubuntu Xenial) ""Out of memory" errors after upgrade to 4.4.0-59" [Undecided,Confirmed]23:19
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clarkbbut it is also marked fix released23:19
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corvusclarkb: hrm.  this is starting to look like a kernel issue in our deployment, and maybe not zuul related... i'll switch to -infra23:43

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