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Slow Forums: PF Under DDOS Attack

by Borek
Tags: attack, ddos, forums, slow
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dlgoff
#397
Sep1-11, 07:57 AM
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Quote Quote by Greg Bernhardt View Post
nginx simply crashed. no attack



cdn. not related
Things have been working very well on this end. But thanks for this info as we are all a little.....a lot addicted to PF.
Borek
#398
Sep1-11, 10:50 AM
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Quote Quote by lisab View Post
There was a long delay to sign in, a message at the bottom of the page said "waiting for xxxx.mathjax.org". If I get it again, I'll note what the "xxxx" is.
This is our new LaTeX engine, sometimes it has its own quirks.

I see this message several times a day on average. In my case it is most likely Opera related
lisab
#399
Sep1-11, 11:15 AM
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Quote Quote by Borek View Post
This is our new LaTeX engine, sometimes it has its own quirks.

I see this message several times a day on average. In my case it is most likely Opera related
I'm using Chrome.
dlgoff
#400
Sep1-11, 11:28 AM
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Quote Quote by lisab View Post
I'm using Chrome.
I'm using the Windows 7 operating system and added the STIX Fonts which may speed up some equations. Here's the MathJax Font Help installation instructions.
Borek
#401
Sep1-11, 12:59 PM
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Quote Quote by lisab View Post
I'm using Chrome.
MathJax is on different servers that PF is, so it may happen you can connect to PF without problems, while MathJax can't be reached. This part is not browser dependent, so it won't be surprising to see it on any computer.

Problem with Opera seems to be that for some reason it tries to contact MathJax servers each time PF pages are loading, instead of using cached version of the files. That means much more traffic and higher probability of problems. As far as I can tell Chrome uses cached version much more efficiently on my machine, but I didn't test it well enough to be sure - could be I was just lucky. For sure when Opera fails to load PF pages, I can switch to Chrome and browse the site without problems.
rhody
#402
Sep2-11, 07:13 AM
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Bad Gateway after submitting a post, lost it, about 6:30 AM EDT.

Rhody...
Borek
#403
Sep4-11, 06:26 AM
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I have the problem about once a day each day, around 11 GMT. It never lasts long and - as far I can tell - it can't be assigned to a specific time, more like +/- 1 hour of some point.

As it happens also in the morning - when AFAIK maintenance scripts are working, I wonder if it is not some other maintenance script?
Andre
#404
Sep4-11, 07:29 AM
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P: 5,460
Yes for me, every morning at 8:30 am exactly, PF is down for a few minutes. Maybe one year, I'll learn not to try to open PF exactly at that time.


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