Interesting. I assume that otherwise this host is the same (OS/CPU etc.) as 
others where it runs without probs? We are not ghosted by some strange 
blabla-lake hyper threading thingie singularity?

Need to think about this.

> Am 23.11.2017 um 13:43 schrieb Stefan Priebe - Profihost AG 
> <s.pri...@profihost.ag>:
> 
> *argh*, i was too fast no it did NOT fix the problem. It even happens with:
> H2MaxWorkers    4096
> 
> Sorry about that.
> 
> Stefan
> 
> Am 23.11.2017 um 13:42 schrieb Stefan Priebe - Profihost AG:
>> Hello,,
>> 
>> setting:
>> H2MaxWorkers    1024
>> 
>> fixes the issue for me. The main problem is how to i know how many
>> workers are needed? How can i detect whether all workers of h2 are busy?
>> 
>> Stefan
>> 
>> Am 22.11.2017 um 13:23 schrieb Stefan Priebe - Profihost AG:
>>> Hell Stefan,
>>> 
>>> will send a log to you in a few seconds via private email.
>>> 
>>> Greets,
>>> Stefan
>>> 
>>> Am 21.11.2017 um 23:18 schrieb Stefan Eissing:
>>>> sorry for the late reply. for stucks trace2 is best. 
>>>> 
>>>>> Am 21.11.2017 um 19:35 schrieb Stefan Priebe - Profihost AG 
>>>>> <s.pri...@profihost.ag>:
>>>>> 
>>>>> Hello Stefan,
>>>>> 
>>>>> which loglevel do you need? trace2?
>>>>> 
>>>>> Greets,
>>>>> Stefan
>>>>> 
>>>>>> Am 21.11.2017 um 16:48 schrieb Stefan Eissing:
>>>>>> Never done this, but https://www.howtoforge.com/setenvif_apache2 seems 
>>>>>> like one way to do make it work.
>>>>>> 
>>>>>>> Am 21.11.2017 um 16:16 schrieb Stefan Priebe - Profihost AG 
>>>>>>> <s.pri...@profihost.ag>:
>>>>>>> 
>>>>>>> 
>>>>>>>> Am 21.11.2017 um 16:06 schrieb Stefan Priebe - Profihost AG:
>>>>>>>>> Am 21.11.2017 um 15:45 schrieb Stefan Eissing:
>>>>>>>>> 
>>>>>>>>>> Am 21.11.2017 um 14:33 schrieb Stefan Priebe - Profihost AG 
>>>>>>>>>> <s.pri...@profihost.ag>:
>>>>>>>>>> 
>>>>>>>>>> Hello Stefan,
>>>>>>>>>> Hello Yann,
>>>>>>>>>> 
>>>>>>>>>> me the http2 bug tester is calling again ;-)
>>>>>>>>> 
>>>>>>>>> And the day was going so well...
>>>>>>>> 
>>>>>>>> I'm sorry ;-)
>>>>>>>> 
>>>>>>>>>> While running two bash curl while loops the one using http1.1 always
>>>>>>>>>> finishes in < 0.05s while the http2 one takes sometimes 0.4 to 20s to
>>>>>>>>>> finish. Sadly i can't reproduce this all the time - mostly more 
>>>>>>>>>> requests
>>>>>>>>>> more failures. As this is a production server i've no idea how to 
>>>>>>>>>> debug
>>>>>>>>>> as the http2 trace logs might flood the harddisk.
>>>>>>>>> 
>>>>>>>>> Hmmm. Do you know if this happens waiting for a response or at the 
>>>>>>>>> end of a connection? Or in the middle of a body? All GETs or also 
>>>>>>>>> POSTs?
>>>>>>>> 
>>>>>>>> My Test only contains GET - but most probably there are also running
>>>>>>>> POST requests but not started by me.
>>>>>>>> 
>>>>>>>> Strangely this only happens between 1pm and 2pm a day but i've no idea
>>>>>>>> what's different at that time.
>>>>>>> 
>>>>>>> OK i'm also able to reproduce this whenever your want. Can we activate
>>>>>>> trace logging for a specific IP? So i can generate a http2 log?
>>>>>>> 
>>>>>>>> 
>>>>>>>> I can output a lot of information from curl:
>>>>>>>>     time_namelookup
>>>>>>>>         time_connect
>>>>>>>>      time_appconnect
>>>>>>>>     time_pretransfer
>>>>>>>>        time_redirect
>>>>>>>>   time_starttransfer
>>>>>>>> 
>>>>>>>> Another way might be to enable trace logging only for "my" IP? Is
>>>>>>>> something like this possible?
>>>>>>>> 
>>>>>>>> Greets,
>>>>>>>> Stefan
>>>>>> 
>>>> 

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