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| flwang1 | ramishra: Hi Rabi, are you around? | 08:34 |
|---|---|---|
| flwang1 | i'm stuck by an issue about removal_policies, when i try to delete an instance in a resource group, i can see the instance A's ID is passed in, but unfortunately, the instance B is deleted. can anybody give me some ideas where should i debug? | 08:36 |
| flwang1 | e.g. where should I add breakpoint for details, thanks | 08:36 |
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| ramishra | flwang1: Hi, that's weird. What version of heat are you using? Is it deleting a wrong resource or deleting an additional resource? | 09:01 |
| flwang1 | master | 09:01 |
| flwang1 | deleting a wrong resource | 09:01 |
| ramishra | flwang1: can you share your template? | 09:02 |
| flwang1 | sure, wait a sec | 09:02 |
| flwang1 | http://paste.openstack.org/show/746007/ | 09:03 |
| ramishra | flwang1: what's your passing for minions_to_remove parameter? | 09:06 |
| flwang1 | ramishra: the instance id in nova | 09:06 |
| flwang1 | i can see correct id passed in, but finally, wrong instance was deleted | 09:07 |
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| ramishra | I don't know if passing nova instances would work, you should pass the indexes which would be the resource names for the resources in the group, how does your kubeminion.yaml look like? | 09:12 |
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| flwang1 | ramishra: wait a sec | 09:15 |
| flwang1 | http://paste.openstack.org/show/746008/ | 09:16 |
| ramishra | Hmm, you're setting OS::stack_id to the nova instance_id, so it should have worked | 09:18 |
| flwang1 | yep, that's the thing i figured out, but it still doesn't work | 09:20 |
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| flwang1 | ramishra: anything else i should check? | 09:33 |
| ramishra | flwang1: I tested on master, it seems to work as expected | 09:33 |
| flwang1 | ramishra: as for the kube_minion i'm returning with OS::stack_id, could i add a new output to expose the 'kube_minion'? | 09:34 |
| flwang1 | instead of using OS::stack_id | 09:35 |
| ramishra | I used a simple reproducer with nova server resources and OS::stack_id | 09:35 |
| flwang1 | could i take a look your template? | 09:36 |
| flwang1 | so that i can test it as well | 09:36 |
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| ramishra | flwang1: http://paste.openstack.org/show/746011/ | 09:37 |
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| flwang1 | ramishra: if i want to do the test with openstack command line, how should i issue the command like 'openstack stack update ...'? | 09:40 |
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| ramishra | yep, just update the template to add the changed the blacklist and then do #openstack stack update <stack_name> -t rsg.yaml | 09:41 |
| flwang1 | ramishra: ok, thanks, i will dig and probably come back to bug you | 09:44 |
| flwang1 | ramishra: thank you very much | 09:44 |
| ramishra | flwang1: yeah, if you see any issue with the simple reproducer, go ahead and file a bug with the details | 09:44 |
| flwang1 | ramishra: sure, cheers | 09:45 |
| flwang1 | ramishra: btw, when we send the heat update api call | 09:49 |
| flwang1 | we're also sending this param number_of_minions | 09:50 |
| flwang1 | will it take any action to delete node? | 09:50 |
| flwang1 | for example, initially, the number_of_minions=3, then magnum send api call to heat to update with number_of_minions=2, minions_to_remove=['ID'] | 09:51 |
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| flwang1 | ramishra: i think the number_of_minions may also do resource delete? | 09:52 |
| flwang1 | s/do/trigger | 09:52 |
| ramishra | Ah, that's the issue. You are trying to scale-down and black-list at the same time. So it would removed 2 nodes and build 2 new ones | 09:53 |
| ramishra | build one | 09:53 |
| flwang1 | ramishra: it didn't actually | 09:53 |
| ramishra | so if the blacklisted node is not the last node | 09:54 |
| ramishra | then it would remove that too, else it would just remove the last node | 09:54 |
| ramishra | last node means node with highest index in the group | 09:55 |
| flwang1 | for example, i have 2 nodes, NODE-A and NODE-B, then cluster autoscaler sends request like number_of_minions=1, minions_to_remove=['NODE-A'], what should happen? | 09:55 |
| flwang1 | NODE-B has the highest index | 09:55 |
| ramishra | I guess both B and A both should go and a new node C sould be created | 09:57 |
| ramishra | what's the behaviour you're noticing? | 09:57 |
| flwang1 | i got NODE-B deleted | 09:57 |
| ramishra | and nothing happens to NODE-A? | 09:58 |
| flwang1 | seems there is a priority issue or race condition | 09:58 |
| flwang1 | nothing happened to NODE-A, yes | 09:58 |
| flwang1 | could you please confirm it's correct behaviour? | 09:59 |
| flwang1 | because we need to depend on the correct behaviour to do auto healing | 09:59 |
| ramishra | flwang1: I don't see that though. It keeps NODE-B, which seems like correct behaviour to me | 10:02 |
| ramishra | I mean the blacklist is applied before the scaledown | 10:03 |
| flwang1 | i will re run the test to double check. but FWIW, if i just use minions_to_remove=['NODE-A'], it shouldn't remove NODE-B anyway, right? | 10:04 |
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| strigazi | flwang1: it depends on https://storyboard.openstack.org/#!/story/2005054#comment-116876 | 10:06 |
| flwang1 | strigazi: yes, i know | 10:07 |
| strigazi | flwang1: removal policies are controlled either by the RG index or the nested stack_id | 10:07 |
| flwang1 | strigazi: what i discussed with ramishra is | 10:07 |
| ramishra | flwang1: yep but if the count does not change it would add a new node, If you reduce the count it's applied after the blacklist is removed from the group, so the behaviour is the same | 10:07 |
| strigazi | openstack stack resource show <stack> kube_miinions to see which ids you can use | 10:07 |
| flwang1 | though i applied OS::stack_id = kube_minion, CA still deleted the wrong instance | 10:08 |
| flwang1 | strigazi: ^ | 10:08 |
| flwang1 | strigazi: did you test that? | 10:08 |
| strigazi | no, but I can quickly | 10:09 |
| strigazi | 5 ins | 10:09 |
| strigazi | 5 mins | 10:09 |
| flwang1 | cool, thanks | 10:10 |
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| flwang1 | strigazi: any luck? | 10:24 |
| strigazi | flwang1: http://paste.openstack.org/raw/746021/ | 10:30 |
| flwang1 | strigazi: ok, i will test it again tomorrow | 10:35 |
| flwang1 | strigazi: btw, can't we just add a new item in the output for kube_minion? | 10:35 |
| flwang1 | instead of using the OS::stack_id = kube_minion ? | 10:35 |
| strigazi | can't we just add a new item in the output for kube_minion? I don't get this | 10:36 |
| strigazi | flwang1: ^^ | 10:37 |
| strigazi | I think we discussed this, we will delete nodes by nova server uuid | 10:38 |
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| openstackgerrit | Marek Lyčka proposed openstack/heat-dashboard master: Changes the data field used to populate the E.N. select https://review.openstack.org/639105 | 14:28 |
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| pas-ha | hi all, how much advised is it to enable reauthentification with trusts? when enabling it seems AODH alarms fail to be created as they also seem to by trying creating a trust, but heat creates a trust w/o redelegation allowed.. | 16:39 |
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| zaneb | pas-ha: I don't know that many folks are using it. (I believe TripleO is not, even though I assume that's what we added it for?) | 17:08 |
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| zaneb | creating a trust for reauthentication that doesn't allow redelegation seems like an obvious bug to me | 17:08 |
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| pas-ha | then plz review :-) https://review.openstack.org/#/c/638413/ | 17:09 |
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| * zaneb opens a 51st firefox window | 17:12 | |
| * pas-ha is at ~20 chromium tabs so still good to go | 17:13 | |
| zaneb | don't get me started on counting tabs | 17:13 |
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| zaneb | pas-ha: commented on the review. let me know if I've understood the problem correctly | 17:31 |
| pas-ha | yes, your comment makes total sense and it is indeed the 2nd use-case for trusts (stacks that take long to create) | 17:34 |
| pas-ha | we'll re-work and remove the added config option | 17:35 |
| pas-ha | in the long run IMO though heat should use service token auth just like nova and cinder and ironic capable to do already | 17:36 |
| pas-ha | for stacks that take long to create that is | 17:36 |
| pas-ha | (although I'm not sure if one can create a trust from token that already expired, as in the case of aodh alarms) | 17:37 |
| zaneb | pas-ha: +1 totally agree. I think we were possibly waiting on something else (openstacksdk 1.0?) to be able to support that? | 17:37 |
| pas-ha | not sure.. keystoneauth already supports that, so you can pass the ServiceTokenAuth auth plugin to session/adapter. what nova and cinder do is they have a method on context object that returns the proper ServiceTokenAuth plugin, and it is being passed into the constructor for the client | 17:39 |
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| zaneb | I (very) vaguely recall some issue about that not being available yet for every client | 17:42 |
| zaneb | but equally I could be making that up :) | 17:42 |
| pas-ha | yeah, that may be an issue still | 17:42 |
| zaneb | ramishra might remember better | 17:42 |
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