Re: [openstack-dev] Tracing a request (NOVA)
*i just want to understand as to how the request goes from the api-call to the nova-api and so on after that.* To answer so on after that, in addition to josh answer, you can also look into http://ilearnstack.com/2013/04/26/request-flow-for-provisioning-instance-in-openstack/ . Now to answer first part, i just want to understand as to how the request goes from the api-call to the nova-api: You can look into *http://developer.openstack.org/api-ref.html http://developer.openstack.org/api-ref.html*, particularly in *http://developer.openstack.org/api-ref-compute-v2.1.html http://developer.openstack.org/api-ref-compute-v2.1.html* On Sat, Aug 29, 2015 at 8:39 AM, Joshua Harlow harlo...@outlook.com wrote: I made the following some time ago, https://wiki.openstack.org/wiki/RunInstanceWorkflows https://wiki.openstack.org/w/images/a/a9/Curr-run-instance.png That may be useful for u, (it may also not be that up to date), Cheers, Josh Dhvanan Shah wrote: Hi, I'm trying to trace a request made for an instance and looking at the flow in the code. I'm just trying to understand better how the request goes from the dashboard to the nova-api , to the other internal components of nova and to the scheduler and back with a suitable host and launching of the instance. i just want to understand as to how the request goes from the api-call to the nova-api and so on after that. I have understood the nova-scheduler and in that, the filter_scheduler receives something called request_spec that is the specifications of the request that is made, and I want to see where this comes from. I was not very successful in reverse engineering this. I could use some help as I want to implement a scheduling algorithm of my own but for that I need to understand how and where the requests come in and how the flow works. If someone could guide me as to where i can find help or point in some direction then it would be of great help. -- Dhvanan Shah __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -- Vedsar Kushwaha SDE@Amazon Development Center Past - Indian Institute of Science __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
Re: [openstack-dev] LOG.debug()
Thanks for immediate reply. I'm aware of logging_monitoring.html
http://docs.openstack.org/openstack-ops/content/logging_monitoring.html
and /var/log. But the information is not there.
LOG.debug(%(host_state)s does not have %(requested_ram)s MB usable ram,
it only has %(usable_ram)s MB usable ram., {'host_state': host_state, '
requested_ram': requested_ram, 'usable_ram': usable_ram}
).
I wanted to know where this information is storing, when filter returns
false.
On Wed, Feb 18, 2015 at 8:26 PM, Gary Kotton gkot...@vmware.com wrote:
Hi,
Please see
http://docs.openstack.org/openstack-ops/content/logging_monitoring.html
If you have installed from packages this may be in
/var/log/nova/nova-compute.log
Thanks
Gary
From: Vedsar Kushwaha vedsarkushw...@gmail.com
Reply-To: OpenStack List openstack-dev@lists.openstack.org
Date: Wednesday, February 18, 2015 at 4:52 PM
To: OpenStack List openstack-dev@lists.openstack.org
Subject: [openstack-dev] LOG.debug()
Hello World,
I'm new to openstack and python too :).
In the file:
https://github.com/openstack/nova/blob/master/nova/scheduler/filters/ram_filter.py
https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_openstack_nova_blob_master_nova_scheduler_filters_ram-5Ffilter.pyd=AwMFAwc=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEsr=VlZxHpZBmzzkWT5jqz9JYBk8YTeq9N3-diTlNj4GyNcm=DJEz4nE1qVf12YKxUwG0LN0yBMtl3warl36Oqq4Vqpos=ONUtXkRDFMM8mfVHff8Fc3zFe9AdJohiOZBUe7P6P3Ie=
where does the LOG.debug() is storing the information?
--
Vedsar Kushwaha
M.Tech-Computational Science
Indian Institute of Science
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Vedsar Kushwaha
M.Tech-Computational Science
Indian Institute of Science
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[openstack-dev] LOG.debug()
Hello World, I'm new to openstack and python too :). In the file: https://github.com/openstack/nova/blob/master/nova/scheduler/filters/ram_filter.py where does the LOG.debug() is storing the information? -- Vedsar Kushwaha M.Tech-Computational Science Indian Institute of Science __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
Re: [openstack-dev] LOG.debug()
thanks. that worked...:) On Wed, Feb 18, 2015 at 9:30 PM, Jordan Pittier jordan.pitt...@scality.com wrote: Hi, Also, make sure you have : debug = True verbose = True in the [DEFAULT] section of your nova.conf Jordan On Wed, Feb 18, 2015 at 3:56 PM, Gary Kotton gkot...@vmware.com wrote: Hi, Please see http://docs.openstack.org/openstack-ops/content/logging_monitoring.html If you have installed from packages this may be in /var/log/nova/nova-compute.log Thanks Gary From: Vedsar Kushwaha vedsarkushw...@gmail.com Reply-To: OpenStack List openstack-dev@lists.openstack.org Date: Wednesday, February 18, 2015 at 4:52 PM To: OpenStack List openstack-dev@lists.openstack.org Subject: [openstack-dev] LOG.debug() Hello World, I'm new to openstack and python too :). In the file: https://github.com/openstack/nova/blob/master/nova/scheduler/filters/ram_filter.py https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_openstack_nova_blob_master_nova_scheduler_filters_ram-5Ffilter.pyd=AwMFAwc=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEsr=VlZxHpZBmzzkWT5jqz9JYBk8YTeq9N3-diTlNj4GyNcm=DJEz4nE1qVf12YKxUwG0LN0yBMtl3warl36Oqq4Vqpos=ONUtXkRDFMM8mfVHff8Fc3zFe9AdJohiOZBUe7P6P3Ie= where does the LOG.debug() is storing the information? -- Vedsar Kushwaha M.Tech-Computational Science Indian Institute of Science __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -- Vedsar Kushwaha M.Tech-Computational Science Indian Institute of Science __ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
