Number of semaphores in the proxy container

The proxy container uses a range of semaphore keys for global operations. If you run a large number of processes in a proxy container the maximum value should be increased. In the case of a shortage, you will find the message U189 with the insert SEMA USED in the logging file of the proxy container (see U messages).

Increasing the number of semaphores

The number of semaphores is defined in the input.system.txt file with the following statement:

MAX SEMARRAY=(<key>, <number>)

You find the file input.system.txt

• on Solaris and Linux systems under the directory:
  <Proxy_home>/def

• on Windows systems under the directory:
  <Proxy_home>\def

To increase the number of semaphores, increase the value for <number> in the MAX SEMARRAY statement. For calculating <number> the following formula applies:

<number>=nProc/10+2

<nProc> specifies the number of the processes of the proxy container.