Jrun4 and threads

[melanie06]

Hi,

Now i have migrate my site web from jrun2.3 to jrun 4 and i have somes big problems, in my log of jrun i have a big lots of this errors :

Do you know what is ? in jrun 2.3 this errors was not in the log...

Thanks a lot for your help....

java.lang.RuntimeException: Request timed out waiting for an available thread to run. You may want to consider increasing the number of active threads in the thread pool.
at jrunx.scheduler.ThreadPool$Throttle.enter(ThreadPool.java:125)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:448)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:294)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)