Is this some kind of thread per client application?
If it is, you might like to take a look at the good old C library select(2) api which has been somehow implemented in Java 1.4.x (see for example, API doc java.nio.channels.SelectableChannel). I haven't used this Java API myself, but if it's anything like the C select(), you can handle many channels in a single thread or process, so cutting down the total number of threads/processes. You'll need to check out the maximun nunber of open filehandles allowed per process. You might need to do a kernel compile to bring it upto something reasonable.
Anyway, that's my penny's worth for the day.
Daniel
Sobolevsky Vladek wrote:
Hi All,
I have problem to run more then 1000 threads on Linux.
I get Out of Memory error, the program written in Java so I suspect it
related
To Java thread implementation. This limitation applies only to one
process , I can run For example 2 processes that will use 900 threads each and it works
fine.
I am running Red Hat 7.2 , 2.4.18 kernel. The machine is dual Intel , with 4Gb Ram. Please advice.
Thank you
Vladik
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