<div dir="ltr"><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">Thanks Jonathan for the pointer. I was going to throw some WIkipedia page about it but RFC is definitely the best!<br><br></div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">
I am glad you discovered I was not alone Jim, thought I am a little sad that you were that harsh welcoming my input as, if I may, I also did the reporting on my free time, and without it I am unsure whether you would have investigated anything?<br>
</div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">On a side note, I know what working for free in whatever structure is. I just rarely used that as an excuse to take the right of sending people of good faith away.<br>
<br></div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">I do not know if those 502 are directly tied to some IPv6 request, since I have both v4/v6 connectivity. I do not know how switch/fallback between versions occur during normal browsing.<br>
</div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">I recovered access to the URL, but following your explanation the 502 were due to the temporary apache setup.<br><br></div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">
- I know little about Apache and especially RPAF module, but Googling a little around I found that: <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=726529">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=726529</a><br>
I do not know if that would help, but who knows? If you are using Debian, it seems there was an update at the end of January.<br><br></div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">- For PHP stopping accepting requests, since it is not crashing and you confirm the traffic volume is high, I would bet on the exhaustion of threads being able to accept new requests. Looks like the usual symptoms.<br>
</div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">Ironically, I found some answers on the Nginx ML archive that would help improving threads pool and PHP jobs execution time limit: <a href="http://forum.nginx.org/read.php?2,108162">http://forum.nginx.org/read.php?2,108162</a><br>
<br></div><div class="gmail_default" style="font-size:small;color:rgb(51,51,153)">I hope you will find your way out of there,<br></div><div class="gmail_extra"><font size="1"><span style="color:rgb(102,102,102)">---<br></span><b><span style="color:rgb(102,102,102)">B. R.</span></b><span style="color:rgb(102,102,102)"></span></font>
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