Thread Manager
This manager supplies the threads in which SAP J2EE Engine system operations are executed. It provides a set of properties for starting and managing system threads.
The Thread Manager runs on both server processes and dispatchers.
Dispatcher
Property |
Description |
Default Value |
InitialThreadCount |
The initial size of the thread pool. Specifies how many threads are started at the ThreadManager initialization. After startup, each thread is put in a waitQueue, until there is a Runnableobject for processing. |
100 |
MaxRQSize |
The maximum size of the request queue. It is used to avoid infinite wait. |
5000 |
MaxThreadCount |
The maximum number of threads that the Thread Manager will manage. This limit is needed to avoid overload due to too many running threads. |
200 |
MinThreadCount |
Absolute minimum number of the threads in the Thread Manager’s pool. Even if the J2EE Engine has absolutely no requests, this is the minimum number of threads that will be kept running. |
50 |
ThreadsIdleTimeout |
A timeout (in minutes) for which the idle thread exists if a thread has not managed to obtain a task for processing and if the total number of threads is in the [MinThreadCount; MaxThreadCount] range. For more information, see Dynamic Allocation/Reallocation of Resources (in the Administration Manual). |
5 |
Server
Property |
Description |
Default Value |
InitialThreadCount |
See above. |
40 |
MaxRQSize |
See above. |
5000 |
MaxThreadCount |
See above. |
100 |
MinThreadCount |
See above. |
10 |
ThreadsIdleTimeout |
See above. |
5 |
See also:
Thread System in the Administration Manual