[openstack-dev] removing screen from devstack - RSN

Eric Fried openstack at fried.cc
Fri Sep 8 21:00:02 UTC 2017


Oh, are we talking about the logs produced by CI jobs?  I thought we
were talking about on your local devstack itself.  Because there, I
don't think you shouldn't be seeing log files like this anymore.
Logging is done via systemd and can be viewed via journalctl [1].

The exceptions are things that run under apache, like horizon, keystone,
and placement - their log files can be found wherever apache is set up
to send 'em.  E.g. [2].

As far as the names go, I *think* we've done away with 'q' as the
neutron prefixy thing at this point.  On my (pike-ish) setup, the
devstack neutron API service is quite appropriately called
devstack at neutron-api.service.

[1] https://docs.openstack.org/devstack/latest/systemd#querying-logs
[2] http://paste.openstack.org/raw/620754/


On 09/08/2017 03:49 PM, Sean Dague wrote:
> I would love to. Those were mostly left because devstack-gate (and
> related tooling like elasticsearch) is not branch aware, so things get
> ugly on the conditionals for changing expected output files.
> 
> That might be a good popup infra topic at PTG.
> 
> On 09/08/2017 04:17 PM, John Villalovos wrote:
>> Does this mean we can now get more user friendly names for the log files?
>>
>> Currently I see names like:
>> screen-dstat.txt.gz    
>> screen-etcd.txt.gz     
>> screen-g-api.txt.gz    
>> screen-g-reg.txt.gz    
>> screen-ir-api.txt.gz   
>> screen-ir-cond.txt.gz  
>> screen-keystone.txt.gz 
>> screen-n-api-meta.txt.gz       
>> screen-n-api.txt.gz    
>> screen-n-cauth.txt.gz  
>> screen-n-cond.txt.gz   
>> screen-n-cpu.txt.gz    
>> screen-n-novnc.txt.gz  
>> screen-n-sch.txt.gz    
>> screen-peakmem_tracker.txt.gz  
>> screen-placement-api.txt.gz    
>> screen-q-agt.txt.gz    
>> screen-q-dhcp.txt.gz   
>> screen-q-l3.txt.gz     
>> screen-q-meta.txt.gz   
>> screen-q-metering.txt.gz       
>> screen-q-svc.txt.gz    
>> screen-s-account.txt.gz
>> screen-s-container.txt.gz      
>> screen-s-object.txt.gz 
>> screen-s-proxy.txt.gz  
>>
>> People new to OpenStack don't really know that 'q' means neutron.
>>
>>
>>
>> On Thu, Sep 7, 2017 at 5:45 AM, Sean Dague <sean at dague.net
>> <mailto:sean at dague.net>> wrote:
>>
>>     On 08/31/2017 06:27 AM, Sean Dague wrote:
>>     > The work that started last cycle to make devstack only have a single
>>     > execution mode, that was the same between automated QA and local, is
>>     > nearing it's completion.
>>     >
>>     > https://review.openstack.org/#/c/499186/
>>     <https://review.openstack.org/#/c/499186/> is the patch that will remove
>>     > screen from devstack (which was only left as a fall back for things like
>>     > grenade during Pike). Tests are currently passing on all the gating jobs
>>     > for it. And experimental looks mostly useful.
>>     >
>>     > The intent is to merge this in about a week (right before PTG). So, if
>>     > you have a complicated devstack plugin you think might be affected by
>>     > this (and were previously making jobs pretend to be grenade to keep
>>     > screen running), now is the time to run tests against this patch and see
>>     > where things stand.
>>
>>     This patch is in the gate and now merging, and with it devstack now has
>>     a single run mode, using systemd units, which is the same between test
>>     and development.
>>
>>     Thanks to everyone helping with the transition!
>>
>>             -Sean
>>
>>     --
>>     Sean Dague
>>     http://dague.net
>>
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