My personal belief is that my app does things a new way in our system and I'm putting stress on other objects in the system that aren't normally accustomed to it and they are having difficulty. Anyone know of a good, user friendly (read inexperienced to memory profilling) application?
Jan
Michael Becke wrote:
My impression of your first email was that the server had used up the 4GB of memory. Are you saying it was HttpClient? If so, you must have run the JVM and specified the max heap size to something like -Xmx4GB. If that's the case then this is probably something you don't want to do. Once Java gets over the minimum heap size, specified by -Xms, it will continue to expand all the way up to the max, even if it doesn't need to. Once the JVM allocates memory to the heap it never releases it. Is this what's happening?
Mike
On Thursday, May 29, 2003, at 06:09 PM, Jan Gonsalves wrote:
Oleg,
I understand what you mean my mem alloc, but Java can leak, it's a proven fact. Anytime ROOT has a reference to something it makes it unable to GC, however, if you loose your reference and ROOT still has it's, that's a memory leak. ROOT will never GC that memory. Ask youself this, if Memory leaks were impossible in JAVA, how can programs such as JProfiler or OptimizIt sell?
Jan
Oleg Kalnichevski wrote:
Jan,
HttpClient is a pure Java application and as such does not manage memory
allocation directly. I suggest that you check if there are any known
issues with the jvm you are using. Upgrading to HttpClient beta-1 would
not hurt, anyways.
Oleg
On Thu, 2003-05-29 at 16:36, Jan Gonsalves wrote:
Does anyone know of any memory issues with opening a connection and continuely re-using it, only closing it when a socket timeout happens? I'm currently using ALPHA 3. I have to "fake out a browser" and navigate through a website to extract information because they don't offer a straight DB connection. I re-use this connection the whole time, never closing it, only recycling it, unless I get a socket timeout, ConnectionException, or HTTPRecoverableException. Our Production server has 4GB of ram. Last night we ran and the system went down to 4MB free, 4! I'm just wondering if I'm leaking due to HTTP Client. I've gone over my stuff and it looks relatively solid, I'm wondering now if I'm using HttpClient incorrectly. Does Beta 1 help with any memory issues?
Jan Gonsalves
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