NetBatch Manual

Attributes
NetBatch Manual—522460-004
7-80
MAX-CONCURRENT-JOBS Scheduler Attribute
temporary executors for jobs with the AT attribute and for jobs affected by the
RUNNOW JOB command. For more information, see AT Job Attribute on
page 7-15 and RUNNOW JOB Command on page 6-128.)
Considerations
•
A scheduler adopts the attribute MAX-CONCURRENT-JOBS 500,500 by
default
when cold started.
•
The scheduler can handle up to 500 concurrent jobs, depending on how
many
concurrent openers it has and on the openers limits imposed by other
subsystems such as spooler subsystems. The scheduler can manage a maximum
of 2000 concurrent opens from executor-program processes, child processes of
executor-program processes, and BATCHCOM, NetBatch-Plus, or user-written
requester processes.
Example
This example shows the effect of the attribute MAX-CONCURRENT-JOBS 2,2. The
attribute prevents the scheduler from running more than two jobs at once and from
creating more than two temporary executors.
79} STATUS JOB *
JOB JOBNAME USERID LOG STATE CLASSNAME
---- ---------------- ------- ---- ----------- ---------
11 ZBAT-0011 255,255 READY DEFAULT
12 ZBAT-0012 255,255 READY DEFAULT
13 ZBAT-0013 255,255 READY DEFAULT
14 ZBAT-0014 255,255 READY DEFAULT
80} STATUS EXECUTOR *
2117-I No EXECUTOR selected
81} INFO SCHEDULER, MAX-CONCURRENT-JOBS
SCHEDULER ATTRIBUTES
max-concurrent-jobs: 2,2
82} RUNNOW JOB (ZBAT*)
Job ZBAT-0011 Jobnumber 11 runnow completed
Job ZBAT-0012 Jobnumber 12 runnow completed
Job ZBAT-0013 Jobnumber 13 runnow completed
Job ZBAT-0014 Jobnumber 14 runnow completed
83} STATUS JOB *
JOB JOBNAME USERID LOG STATE CLASSNAME
---- ---------------- ------- ---- ----------- ---------
11 ZBAT-0011 255,255 132 EXECUTING DEFAULT
12 ZBAT-0012 255,255 133 EXECUTING DEFAULT
13 ZBAT-0013 255,255 RUNNOW DEFAULT
14 ZBAT-0014 255,255 RUNNOW DEFAULT
84} STATUS EXECUTOR *
EXECUTOR CPU STATE JOB CLASS
------------------------ --- ------ ---- -------
__TEMP_EXEC_11 3 DELETE 11 DEFAULT
__TEMP_EXEC_12 2 DELETE 12 DEFAULT