Reputation
325
Top tag
Next privilege 500 Rep.
Access review queues
Badges
2 8
Impact
~21k people reached

  • 0 posts edited
  • 0 helpful flags
  • 4 votes cast
Oct
14
awarded  Notable Question
Sep
24
awarded  Popular Question
Jul
10
awarded  Popular Question
Aug
24
comment Very high load, apparently caused by pdflush
I'm not sure, but the two processes that were shown doing ~5MB/s of I/O in my screengrab above were definitely doing a lot of I/O.
Aug
24
accepted Very high load, apparently caused by pdflush
Aug
23
comment Very high load, apparently caused by pdflush
Thanks all for the input, but @MarkWagner's suggestion was the one. In the end it was a request for an image thumbnail that was 300000x200000 pixels which was causing ImageMagick to go nuts. I don't know if it was some smart alec trying to DOS us or just a weird link somewhere, but anyway I fixed the code to limit the size of thumbnails we generate :) Mark if you want the rep, you can convert your comment to an answer and I'll mark it as correct.
Aug
23
awarded  Editor
Aug
23
comment Very high load, apparently caused by pdflush
@MarkWagner Thanks for the hint, good spotting! I've updated the question with what I've discovered so far, but I think you've given me enough of a hint to continue the investigation :)
Aug
23
revised Very high load, apparently caused by pdflush
added 895 characters in body
Aug
22
asked Very high load, apparently caused by pdflush
Mar
25
awarded  Yearling
Feb
11
awarded  Student
Feb
11
awarded  Scholar
Feb
11
comment Installed php-mcrypt but it doesn't show up in phpinfo()
Yes! This was it! The server is one I inherited and it looks like whoever was administering it before me must've upgraded PHP and forgot mcrypt or something... thanks!
Feb
11
accepted Installed php-mcrypt but it doesn't show up in phpinfo()
Feb
11
asked Installed php-mcrypt but it doesn't show up in phpinfo()
Oct
18
answered How to get **all** IP addresses of a domain?
Aug
9
comment Microsoft SQL Server 2005 shrinking log file Consequences?
@LordSauron: If you had a hard drive crash and lost the database, you would need to restore from the most recent backup. The log files can then be used to replay transactions to get you back up-to-date.
Jul
27
answered Two Websites, two directories, two domains, one IP
Jun
24
comment how is it possible that a hacker could have inserted a piece of javascript code at the bottom of several of my pages
It's hard to know without being able to see the page(s) in question...