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MAXFILEPROC z/OS UNIX System Services Planning GA32-0884-00 |
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Use MAXFILEPROC to set the maximum number of file descriptors that a single process can have open concurrently, such as all open files, directories, sockets, and pipes. By limiting the number of open files that a process can have, you limit the amount of system resources a single process can use at one time. You can use the USS_MAXSOCKETS_MAXFILEPROC check provided by IBM® Health Checker for z/OS® to determine whether the MAXFILEPROC value is set too low. For more details about IBM Health Checker for z/OS, see IBM Health Checker for z/OS: User's Guide. When selecting a value, consider these factors:
A process can change the MAXFILEPROC value using the setrlimit() function. Only users with appropriate privileges can increase their limits. You can set a system-wide limit in BPXPRMxx and then set higher
limits for individual processes. Use the RACF® ADDUSER or ALTUSER command to specify the
FILEPROCMAX limit on a per-process basis as follows:
Dynamically changing certain BPXPRMxx parameter values explains how to dynamically change the MAXFILEPROC value. |
Copyright IBM Corporation 1990, 2014
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