Ok, I considered reusing HttpClient, but when I saw methods such as HttpClient.getHost() and getPort(), they implied that at the very least it's not a thread safe class to use. If i have multiple threads executing within one HttpClient object at the same time, and I call HttpClient.getHost(), what's going to happen?
-----Original Message----- From: Oleg Kalnichevski [mailto:[EMAIL PROTECTED] Sent: Thursday, April 08, 2004 12:23 PM To: Commons HttpClient Project Subject: Re: question about performance Gil, (1) First and foremost DO reuse HttpClient instances when using multi-threaded connection manager. HttpClient class is thread-safe. In fact there are no known problems with having just one instance of HttpClient per application. Using a new instance of HttpClient for processing each request totally defeats all the performance optimizations we have built into HttpClient (2) Use multi-threaded connection manager in case you do not (3) Disable stale connection check (4) Do not use connect timeout which causes a controller thread to be spawned per connection attempt Oleg On Thu, 2004-04-08 at 21:02, Alvarez, Gil wrote: > We recently ported our url-hitting code from using java.net.* code to > httpclient code. We use it in a high-volume environment (20 machines are > hitting an external 3rd party to retrieve images). > > > > > > After the port, we saw a significant increase in cycles used by the > machines, about 2-3 times (ie, the load on the boxes increased from > using up 20% of the cpu, to about 50%-60% of the cpu. > > > > For each request, we instantiate an HttpClient object, and a GetMethod > object, and shut things down afterwards. > > > > In order to reduce the use of cycles, what is the recommended approach? > > > > Thank you. > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
