Monday, 2017-09-25

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openstackgerrithuangtianhua proposed openstack/heat master: Make sure we can get watch server url in uwsgi mode  https://review.openstack.org/50487602:12
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openstackgerritRico Lin proposed openstack/heat master: Add attributes schema for OS::Keystone::Project  https://review.openstack.org/46267302:18
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openstackgerrithuangtianhua proposed openstack/heat master: Unskip test_cancel_update_server_with_port  https://review.openstack.org/50697502:30
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ioggstreamhi@heat07:09
openstackgerritMerged openstack/heat master: Remove the existing snapshots from the backend  https://review.openstack.org/50389207:10
therve'morning07:23
ricolino/07:28
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ioggstreamthis needs workflow, how does it work? https://review.openstack.org/#/c/502019/07:38
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openstackgerritWang Bo proposed openstack/heat master: Enable to specify network for Trove Cluster  https://review.openstack.org/50552107:47
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openstackgerritRico Lin proposed openstack/heat master: Replace SCREEN_LOGDIR with LOGDIR  https://review.openstack.org/50701408:07
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openstackgerritMerged openstack/heat master: Improve update_wait_condition_handle docstring  https://review.openstack.org/50201909:23
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openstackgerritWang Bo proposed openstack/heat master: Enable to specify network for Trove Cluster  https://review.openstack.org/50552112:52
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thervezaneb, Hey there13:45
zanebofficial most bizarro user question ever: https://ask.openstack.org/en/question/110405/why-are-there-3-different-intrinsic-functions-get_-instead-of-one-single-unified-one/?answer=110452#post-id-11045213:45
therve:)13:49
thervezaneb, So. Outputs are slow! Why?13:49
zaneb:(13:50
thervezaneb, Are attributes only stored in convergence?13:50
zanebyes13:50
therveOK I forgot about that13:51
zanebbut we only get the ones we need to show outputs, so it shouldn't be any slower than before I thought?13:51
thervezaneb, So... I'm not sure about that13:52
therveIt seems we're retrieving everything in resource groups?13:52
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therveWonder if I can make a test pre-refactoring13:53
zanebugh, I bet it's the solution to the ******* nested get_attr problem causing it13:53
thervehttps://review.openstack.org/#/c/469686/ ?13:55
zanebtherve: so in list_outputs()/show_output() (who named these?) we pass for_resources=False http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/service.py#n136413:57
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therveRight13:57
zanebbut in show_stack() we don't: http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/service.py#n53313:58
zanebI wonder if that's a bug13:58
therveThose flags don't make sense to me :/13:58
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zanebso we're getting the node data that is referenced by other resources (by default), or by outputs, or both13:59
zanebwe know where get_attr is used in the template, so we can figure out which attributes need to be loaded and which do not14:00
zanebdepending on what we're trying to show14:00
thervezaneb, I have a system with the issue, want something to try?14:00
zanebsure14:01
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thervezaneb, Do you want the hand, or can I hack something?14:03
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zanebhack away :)14:06
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thervezaneb, Yeah I was hoping for some suggestions :D14:12
zanebtherve: try this: https://paste.fedoraproject.org/paste/-3BKV6-hCXMUhxKoPR7tQw/14:13
thervezaneb, Hum I was looking mostly at show_output right now14:14
zaneboh14:14
zaneb:(14:14
therveYeah stack show with outputs is probably slow, but that's somewhat expected14:14
zanebthat really shouldn't be slow then14:15
therveHere show output is slow14:15
zanebcan you paste the templates somewhere? or is it all of TripleO?14:15
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therveYeah it's tripleo14:16
zanebtherve: https://review.openstack.org/#/c/475931/ is the prime suspect14:19
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zanebtherve: hey, guess what? we're using show_stack to get nested stack outputs: http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/resources/stack_resource.py#n60914:27
therveOh, yeah. Of course we do14:28
zanebcan't actually see a reason we couldn't use list_outputs() there14:30
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thervezaneb, OK that does seem to make a difference14:40
zanebcool. enough of a difference?14:40
therveThough I probably touched too many things so I need to start again :)14:40
zaneblol14:41
zanebtherve: I take it there's no bug open for this?14:43
thervezaneb, https://bugzilla.redhat.com/show_bug.cgi?id=149326314:43
openstackbugzilla.redhat.com bug 1493263 in rhosp-director "tripleo.deployment.overcloudrc workflow fails on clean deployment and during upgrade with: Internal Server Error (HTTP 500)" [Urgent,New] - Assigned to brad14:43
zanebtherve: ok, I'll open one in Launchpad too14:44
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thervezaneb, I get weird reference error when just replacing the rpc call14:47
zanebI wonder if the output format is different14:48
zaneb(not pun intended)14:48
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therveHum yeah14:52
therveOh14:54
thervezaneb, list_outputs doesn't have value :/14:54
zaneboh, it really is just a list?14:54
therveYeah14:54
zanebwe shouldn't be loading all of the data in there at all then14:55
zanebreturn api.format_stack_outputs(stack.outputs) <- surely that returns values?14:57
therveNo14:57
zanebugh, resolve_value=False14:57
zanebah, but format_stack_output defaults to resolve_value=True14:58
zanebthat's not confusing at all :/14:58
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zanebwhyyyy would you not pass that explicitly15:00
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thervezaneb, OK, so if I resolve the values it doesn't really make a difference compare to stack show15:03
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zanebtherve: so show_output must be using stack_show under the hood, so you are actually using stack_show at the top level. and that's probably what's slowing it down15:06
zanebsince in ResourceGroups the only attributes accessed will be the ones accessed by outputs anyway15:06
therveHum15:09
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thervezaneb, So it worked in milestone 215:12
thervearound 20s for a stack show15:12
thervem3 is around 110s15:12
zanebouch15:12
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zaneband with the change I pasted above?15:13
therveThat only leaves us with a few thousand of lines or so :)15:13
thervezaneb, https://paste.fedoraproject.org/paste/-3BKV6-hCXMUhxKoPR7tQw you mean?15:13
zanebmost of my big series of changes landed between m2 & m3, so not surprising that it'd be in there somewhere15:14
zanebtherve: yes, that one15:14
thervezaneb, Isn't that convergence only?15:14
therveIt looks like it would be15:14
zanebno, it fixes legacy to not do the expensive stuff we do in convergence15:14
zanebwhich isn't expensive (or is worth it) in convergence, but is in legacy15:15
* therve looks again15:15
therveAh yeah for_resources is False15:15
zanebexactly15:16
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thervezaneb, Ah yeah it's better15:20
therveOnly 3 times slower instead of 6 :D15:20
zanebwell, that's... something15:21
therveHeh15:21
zaneb200% improvement in performance, as they would say in marketing15:21
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openstackgerritZane Bitter proposed openstack/heat master: Speed up show-stack with outputs in legacy path  https://review.openstack.org/50720616:50
openstackgerritZane Bitter proposed openstack/heat master: Don't load resource data for list_outputs  https://review.openstack.org/50720716:50
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zanebtherve: found the culprit: http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/resources/template_resource.py#n304 <wince>17:05
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openstackgerritMatthew Edmonds proposed openstack/heat master: fix logger names  https://review.openstack.org/49531018:53
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openstackgerritZane Bitter proposed openstack/heat master: Use show_output in TemplateResource.get_reference_id()  https://review.openstack.org/50724819:40
openstackgerritZane Bitter proposed openstack/heat master: Ignore errors in OS::stack_id output  https://review.openstack.org/50724919:40
openstackgerritZane Bitter proposed openstack/heat master: Use appropriate exception in StackResource.get_output()  https://review.openstack.org/50725019:40
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-openstackstatus- NOTICE: The infra team is bringing Zuul v3 online; expect service disruptions and please see https://docs.openstack.org/infra/manual/zuulv3.html for more information.20:49
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thervezaneb, Oh no21:45
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