In case of high number of submitted jobs, the z/OS agents starts to be unresponsive and writes a hign number of the following error messages:
U02005001 An error appeared in function call 'ZUEXTWRT'. ('8,2004')
U02005057 Job 'UC0.EXP2.JOBS.ZOS.DEMO6.62' with JobID '20734683' has vanished. open error: 47, EDC5047I An invalid file name was specified as a function parameter.
U02005057 Job 'UC0.EXP2.JOBS.ZOS.DEMO6.62' with JobID '20734683' has vanished. StatusJob( UC0631, J0096796) --> (rc=5, reason=4)
A huge number of submitted jobs end in status ENDED_VANISHED
This is a bug of the Z/OS Agent.
Agent now writes into log the SVC99 return and reason code in order to better understand root cause of allocation problem.
A problem has been solved where not enough information provided handling z/OS job output producing error.
Release : 12.3
Component : Z/OS Agent
The correction/improvements will be available in Z/OS Agent versions:
12.3.7 available end of october 2021.
21.0 available end of September 2021.