Friday, 2016-12-02

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openstackgerritDrew Thorstensen (thorst) proposed openstack/nova-powervm: Add delay queue for events  https://review.openstack.org/39116413:37
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thorst_efried: OMG OMG OMG - https://review.openstack.org/#/c/391284/14:53
adreznecHack removal time!14:53
thorst_its a christmas miracle14:53
efriedlooking...14:53
thorst_also, I've got the deadlock fix14:53
thorst_I'm fixing a few things in it, but we solved the mystery deadlock14:54
efriedoo, tell me14:54
thorst_apparently REST now creates the file pipe when we create the vio_file14:54
adreznecPlease elaborate thorst_, this sounds fun14:54
thorst_but it doesn't start reading the file until we run the upload to it14:55
thorst_we started writing to the file quick.  Glance fast failed.  We wrote EOF14:55
thorst_then...at a later point in time, REST started reading the file14:55
efried...before the upload thread had hit.14:55
adreznecAwesome14:55
efriedNoyce.14:55
adreznecThat's a fun timing issue14:55
thorst_so, I've got it14:55
efriedSo how are you planning to solve?14:55
efriedsignal between the two threads?14:55
thorst_pass the upload_f into the _ensure_pipe_close14:56
thorst_and if not done, write the close again...wait .5 seconds...rinse repeat14:56
efrieduh14:56
adreznecIf at first you don't succeed, try again, and again, and again14:56
thorst_cause we have no signal to know when they start the read14:56
thorst_it isn't when our thread starts...its some point in time later.14:56
efriedYeah, that'll work.  A bit... weird feeling, but seems solid.14:56
thorst_reality is its like .1 - 2 seconds14:56
thorst_anyway, getting that out now.14:57
thorst_fixing UT14:57
thorst_etc...14:57
adreznecRight14:57
efriedThe more traditional way would be to use a semaphore to get the two threads to talk to each other.14:57
efriedBut that's another variable.  This is clever.  I like it.14:57
thorst_you'd like doctor who14:57
thorst_its all about cleverness14:57
thorst_at least season 2 to like 514:57
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efriedDoes the upload thread finish right away, or does it wait til the writes are done?14:58
* adreznec uses sonic screwdriver on glance upload code14:58
efriedI.e. does the _ensure_pipe_close need to check whether the thread has finished, or whether it has started?14:58
efriedCause if the latter, it doesn't necessarily close the window.14:58
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thorst_efried: sorry, was otp15:45
thorst_upload thread finished when the REST API returns15:45
thorst_it needs to check that its 'done'15:45
thorst_(and has started)15:45
adreznecefried: thorst_ who's going to handle cleanup of the OOT driver now that https://review.openstack.org/#/c/391284/ has merged? efried?15:49
thorst_adreznec maybe?15:49
thorst_I mean, he who smelt it...15:49
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adrezneclol15:50
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esbergluthorst_: adreznec: Some of the nova runs are failing to start n-cpu with this error17:47
esbergluAttributeError: type object 'Architecture' has no attribute 'PPC64'17:47
esbergluWhich is from this change17:47
esbergluhttps://review.openstack.org/#/c/40393417:48
esbergluhttps://github.com/openstack/nova/blob/master/nova/objects/fields.py#L12717:50
esbergluThat's how you would access that right? Am I missing something obvious?17:50
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thorst_esberglu: That is how it appears to be accessed elsewhere18:14
thorst_are the reviews that it is running against removing that field?18:14
esbergluNope18:17
esbergluFor example18:17
esbergluhttps://review.openstack.org/#/c/400785/18:17
esbergluIt doesn't need a rebase and it didn't change that at all18:18
thorst_esberglu: where's the failure?18:24
esbergluhttp://184.172.12.213/95/401395/8/silent/nova-pvm-dsvm-tempest-full/ff45546/logs/18:25
esberglun-cpu.log18:25
thorst_does this happen on every nova patch?18:26
esbergluPretty much18:27
esbergluOne run didn't hit it18:27
thorst_hmmm18:28
thorst_adreznec: I think this may be more up your alley.  Looks to be something with regard to how we patch in18:28
thorst_or efried but he's on vacation18:28
esbergluIs he out the rest of the month?18:29
thorst_pretty much18:29
esbergluthorst_: WTF the other projects are hitting it now too...18:36
esbergluBut fields.py hasn't changed in 7 days18:36
thorst_esberglu: something else must've18:36
thorst_so what just merged into nova.18:36
esbergluAhh. I think I found it. I think the error message is giving the wrong information.18:40
esbergluThe error is coming from this line18:40
esberglu(fields.Architecture.PPC64, hv_type.PHYP, vm_mode.HVM)18:41
esbergluAnd they changed where hv_type and vm_mode are located18:41
esbergluIdk why the error message thinks that its a problem with fields.Architecture.PPC64 though18:41
esbergluChange incoming18:41
thorst_:-)  yay for CI18:42
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openstackgerritEric Berglund proposed openstack/nova-powervm: Update hv_type and vm_mode to new location  https://review.openstack.org/40630418:59
thorst_:-D18:59
* thorst_ is happy for CI18:59
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thorst_esberglu_: I W+1'd the change20:46
thorst_our CI votes for nova-powervm, right?20:47
openstackgerritTaylor Jakobson proposed openstack/nova-powervm: Retry up to 3 times on disk create  https://review.openstack.org/40635520:53
openstackgerritMerged openstack/nova-powervm: Update hv_type and vm_mode to new location  https://review.openstack.org/40630420:53
esberglu_thorst: Yeah otherwise it would show (non-voting) next to it in gerrit20:53
thorst_awesome20:54
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openstackgerritEric Berglund proposed openstack/nova-powervm: DNM: ci check  https://review.openstack.org/32831521:27
openstackgerritEric Berglund proposed openstack/nova-powervm: DNM: CI Check2  https://review.openstack.org/32831721:28
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openstackgerritTaylor Jakobson proposed openstack/nova-powervm: Retry up to 3 times on disk create  https://review.openstack.org/40635522:21
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