Richard Just checked my versions and my old systems that work have:
uwsgi 2.0.10 nginx 1.4.6 web2py 2.14.6 New system that needs altered uwsgi config uwsgi 2.0.14 nginx 1.10.0 web2py 2.14.6 My uwsgi configs are identical except for the commented out 'limit-as = 512' line. Nginx configs are identical. Regarding switching uwsgi to fork-only - should I expect a performance hit? Any other gotchas I should consider? I'm not too concerned as my pages that use pandas have been working just fine for almost 6 months now. But, can never be too careful... Really appreciate all the input. -Jim On Tuesday, October 25, 2016 at 9:50:36 AM UTC-5, Richard wrote: > > Jim which web server are we talking now? Nginx? I think you should > copy/paste configuration so we can have look, I can compare to mine... Just > the relevant part would suffice... > > About threading notice of pandas it says holding lock in case of multiple > dataframe copy, but Jim report he can't even import pandas as pd... So I > don't think it the root cause of his issue... But it good to know I wasn't > aware of that... > > Some good read about uwsgi relate to threading : > > http://uwsgi-docs.readthedocs.io/en/latest/ThingsToKnow.html (search for > thread) > > http://uwsgi-docs.readthedocs.io/en/latest/articles/SerializingAccept.html > (I notice I have thunder-lock = true in my emperor.ini) > > I would compare our nginx/uwsgi conf to see if there is not some diff that > could explained your issue... I am also curious to know if I could have > threading issue with pandas in my app... > > Richard > > > > On Tue, Oct 25, 2016 at 8:32 AM, Jim Steil <ato....@gmail.com > <javascript:>> wrote: > >> Massimo / Michele >> >> Thanks for the input. I don't know anything about fork only mode. Looks >> like I have some reading to do. Thanks again for the input. >> >> -Jim >> >> >> On Tue, Oct 25, 2016 at 4:02 AM, Michele Comitini <michele....@gmail.com >> <javascript:>> wrote: >> >>> @Jim as per Massimo input, did you check that your uwsgi configuration >>> is in fork mode only, no threading? That could be one possible cause. >>> >>> Try also gunicorn instead of uwsgi http://gunicorn.org/ >>> >>> 2016-10-25 7:19 GMT+02:00 Massimo Di Pierro <massimo....@gmail.com >>> <javascript:>>: >>> >>>> Rocket is a multithreaded server and pandas is not thread safe ( >>>> http://pandas.pydata.org/pandas-docs/stable/gotchas.html) be very >>>> careful with it. >>>> >>>> >>>> On Tuesday, 16 August 2016 13:19:42 UTC-5, Dave S wrote: >>>>> >>>>> >>>>> >>>>> On Tuesday, August 16, 2016 at 8:50:51 AM UTC-7, Jim S wrote: >>>>>> >>>>>> Hi >>>>>> >>>>>> I currently have my app deployed using Ubuntu 14.04 / nginx / uwsgi. >>>>>> I have a couple of servers load-balanced behind a haproxy server. I'm >>>>>> running ssl on the haproxy system and talking http to web2y through >>>>>> nginx/uwsgi. >>>>>> >>>>>> Now, I'm trying to upgrade ubuntu to 16.04 and an having issues with >>>>>> pandas (used in my web2py app) through the nginx/uwsgi stack. See this >>>>>> issue for what might be causing it - >>>>>> http://stackoverflow.com/questions/19439190/segmentation-fault-while-using-pandas-in-uwsgi >>>>>> >>>>>> Fixing this error is obviously something beyond my capabilities so it >>>>>> got me thinking about alternative deployment options. One that I'm >>>>>> considering is replacing my nginx / uwsgi stack with just the rocket >>>>>> server >>>>>> to serve the web2py app. My rocket servers (2 of them) would be behind >>>>>> the >>>>>> haproxy server so would not be public-facing. >>>>>> >>>>>> I'm aware of the recommendation against running rocket in a >>>>>> production environment but am not aware of the reasons for the >>>>>> recommendation. >>>>>> >>>>>> My question - does running multiple rocket servers behind haproxy >>>>>> remove the concerns about rocket in a production environment? >>>>>> >>>>>> -Jim >>>>>> >>>>> >>>>> >>>>> I'm not familiar with Pandas, so I can't comment on that part. I run >>>>> rocket, but only a single instance as a development environment. Perhaps >>>>> Mariano and Massimo have tested other configurations, but I think the >>>>> bulk >>>>> of us using rocket only run a single instance. >>>>> >>>>> What are the specific rocket concerns? Scaling? >>>>> >>>>> /dps >>>>> >>>>> -- >>>> Resources: >>>> - http://web2py.com >>>> - http://web2py.com/book (Documentation) >>>> - http://github.com/web2py/web2py (Source code) >>>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "web2py-users" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to web2py+un...@googlegroups.com <javascript:>. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >>> >>> -- >>> Michele Comitini >>> Glisco s.n.c. >>> tel: +39 335 66 71 336 >>> >>> -- >>> Resources: >>> - http://web2py.com >>> - http://web2py.com/book (Documentation) >>> - http://github.com/web2py/web2py (Source code) >>> - https://code.google.com/p/web2py/issues/list (Report Issues) >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "web2py-users" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/web2py/MTOjl8gPuTk/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> web2py+un...@googlegroups.com <javascript:>. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> Resources: >> - http://web2py.com >> - http://web2py.com/book (Documentation) >> - http://github.com/web2py/web2py (Source code) >> - https://code.google.com/p/web2py/issues/list (Report Issues) >> --- >> You received this message because you are subscribed to the Google Groups >> "web2py-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to web2py+un...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. 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