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14
votes
1answer
24k views

What value of thread_cache_size should I use?

I'm using Asp.Net together with MySQL. In the .Net connection string, I have set Max Pool Size to 150. If I run the following I get these values: SHOW GLOBAL STATUS LIKE 'max_used_connections'; ...
4
votes
1answer
5k views

maximum number of connections Squid

I have a Squid proxy server that controls all internet traffic for my network. I need a way to stop users from downloading big files (say >50MB) in my network. I banned some famous ports (e.g. ...
1
vote
1answer
4k views

haproxy and persistant connections

I am using HAproxy to load balance between more web server. Those webservers are using PHP and sessions to keep one's session open. Now, I think that when a user refreshes the page, it is sent to one ...
7
votes
3answers
799 views

mysql “Too many connections” killed the network? [closed]

So I'm pretty confused here, figured I'd throw this out here and see if anyone else has any good ideas. We suffered a pretty big outage two nights ago, and I'm still searching for the root cause. I ...
1
vote
1answer
786 views

Mysql remote connections logging

I need to allow remote connections to my mysql server running on latest stable CentOS. I don't like this idea at all so I want at least to collect as much relevant information as possible. To be ...
1
vote
1answer
181 views

Please recommend an affordable cisco product capable of handling up to 100,000 plus simultaneous tcp connections [closed]

I am setting up my server lab, can you please recommend an affordable and very reliable router than can handle over 100,000 simultaneous open tcp connections without breaking a sweat? Thanks!
1
vote
1answer
2k views

Apache spawning hundreds of processes and pushing up load averages

I run a site with about 100,000 visits a day and lately the load averages sometimes hit the roof (250+). They are normally about 0.5-1.5, so I assumed a (d)dos attack. The number of apache processes ...