www.haskell.org is currently very slow in responding to HTTP requests
Currently, www.haskell.org is very slow in responding to HTTP requests, taking over a minute just to display the main home page. This problem is causing difficulties in displaying options for mailing lists or in displaying HaskellWiki pages. Perhaps the server needs to be rebooted? Could somebody responsible for maintaining the server please look into this issue? It seems to have been persisting for at least about half an hour. Thank you.... -- Benjamin L. Russell
On Wed, Jul 30, 2008 at 10:58 AM, Benjamin L. Russell
Currently, www.haskell.org is very slow in responding to HTTP requests, taking over a minute just to display the main home page.
It seems to take forever here ;) Cheers, -agentzh
On Wed, 2008-07-30 at 11:58 +0900, Benjamin L.Russell wrote:
Currently, www.haskell.org is very slow in responding to HTTP requests, taking over a minute just to display the main home page. This problem is causing difficulties in displaying options for mailing lists or in displaying HaskellWiki pages.
Perhaps the server needs to be rebooted? Could somebody responsible for maintaining the server please look into this issue? It seems to have been persisting for at least about half an hour. Thank you....
Should now be sorted out for the moment. We have this recurring problem where a single client can hog all the download slots. Not using a lot of bandwidth, just taking up slots which eventually means the number of slots hits the maximum and so no new connections can be made. I'm not sure how other people configure apache to avoid this problem. It seems like a really cheap DoS attack so other apache users must get similar problems and so there must be a solution somewhere. Sadly, I've not seen anything obvious. Duncan
On Wed, 30 Jul 2008 08:49:27 +0100, Duncan Coutts
On Wed, 2008-07-30 at 11:58 +0900, Benjamin L.Russell wrote:
Currently, www.haskell.org is very slow in responding to HTTP requests, taking over a minute just to display the main home page. This problem is causing difficulties in displaying options for mailing lists or in displaying HaskellWiki pages.
Perhaps the server needs to be rebooted? Could somebody responsible for maintaining the server please look into this issue? It seems to have been persisting for at least about half an hour. Thank you....
Should now be sorted out for the moment.
Yes; it works fine now.
We have this recurring problem where a single client can hog all the download slots. Not using a lot of bandwidth, just taking up slots which eventually means the number of slots hits the maximum and so no new connections can be made. I'm not sure how other people configure apache to avoid this problem. It seems like a really cheap DoS attack so other apache users must get similar problems and so there must be a solution somewhere. Sadly, I've not seen anything obvious.
Thanks; I'll keep your description in mind. If I come across anything that looks helpful, I'll post it on this mailing list. -- Benjamin L. Russell
Duncan Coutts wrote:
Perhaps the server needs to be rebooted? Could somebody responsible for maintaining the server please look into this issue? It seems to have been persisting for at least about half an hour. Thank you....
Should now be sorted out for the moment.
I noticed this too a few hours ago and restarted the apache server. I also reset the clock (which was about 10 minutes behind) with ntpdate (ntp seems to be installed but not running). The OS is kind of old on that machine. It's RHEL AS release 3, which dates from October 2003, though with the latest update (update 9, June 2007). Latest is RHEL 5.2. Other software versions: Linux 2.4.21 (latest is 2.6.26) Apache 2.0.46 (latest is 2.2.9) MySQL 3.23.58 (latest is 5.0.51a) PHP 4.3.2 (latest is 5.2.6) MediaWiki 1.5.4 (latest is 1.12) http://www.haskell.org/haskellwiki/Special:Version It might be worth upgrading some of that, though if that includes Linux or RHEL overall it would probably require physical access to the box. I'm more familiar with Ubuntu, and I couldn't figure out offhand if there is some kind of mechanism to automatically download and install software similar to apt. I couldn't get up2date to work. -- Ashley Yakeley
On Wed, Jul 30, 2008 at 2:54 AM, Ashley Yakeley
Other software versions:
Linux 2.4.21 (latest is 2.6.26) Apache 2.0.46 (latest is 2.2.9) MySQL 3.23.58 (latest is 5.0.51a) PHP 4.3.2 (latest is 5.2.6) MediaWiki 1.5.4 (latest is 1.12) http://www.haskell.org/haskellwiki/Special:Version
It might be worth upgrading some of that, though if that includes Linux or RHEL overall it would probably require physical access to the box.
The concurrent connection problem is a baked-in limitation of Apache, and is unfortunately not something that will be fixed by a painful upgrade.
participants (5)
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Agent Zhang -
Ashley Yakeley -
Benjamin L.Russell -
Bryan O'Sullivan -
Duncan Coutts