DCI Controller shuts down after DCI0999E: WRITE_XML,WRITEFILE: ( 0/10) or WRITEFILE: ( 0/8)

Products

• Dynamic Capacity Intelligence

Issue/Introduction

CA Dynamic Capacity Intelligence (DCI) Controller region automatically shuts down after having received some errors related to z/OS UNIX System Services in DCILOG:

DCI0999E: WRITE_XML,WRITEFILE: ( 0/10)
DCI0999E: FILE: /USR/LOCAL/DCI/XML/POLICY-STATUS.XML, ERRNO: , ERRNOJR:
DCI1351I: POLICY AND CAPACITY CHECK CYCLE COMPLETED.
DCI0999E: WRITE_XML,WRITEFILE: ( 0/8)
DCI0999E: FILE: /USR/LOCAL/DCI/XML/CNTL.XML, ERRNO: , ERRNOJR:
DCI1353E: ERROR -256 GETTING USS DISK INFO
DCI1005E: MAX RESTARTS OF TEST TASK REACHED 
DCI1004I: STOP COMMAND FORCED BY ZDC
DCI1308I: CONTROLLER MAIN TASK SHUTDOWN IN PROGRESS 
DCI1328I: CONTROLLER IP TASK SHUTDOWN IN PROGRESS 
DCI1329I: CONTROLLER IP TASK SHUTDOWN COMPLETED 
DCI1318I: RULE TASK SHUTDOWN IN PROGRESS
DCI0999E: WRITE_XML,WRITEFILE: ( 0/8)
DCI0999E: FILE: /USR/LOCAL/DCI/XML/CNTL.XML, ERRNO: , ERRNOJR:
DCI1319I: RULE TASK SHUTDOWN COMPLETED
DCI1338I: CONTROLLER DB TASK SHUTDOWN IN PROGRESS 
DCI1339I: CONTROLLER DB TASK SHUTDOWN COMPLETED 
DCI1348I: REPORT TASK SHUTDOWN IN PROGRESS
DCI1349I: REPORT TASK SHUTDOWN COMPLETED
DCI1368I: CONTROLLER SERVICE TASK SHUTDOWN IN PROGRESS
DCI1369I: CONTROLLER SERVICE TASK SHUTDOWN COMPLETED
DCI1358I: CONTROLLER MOI TASK SHUTDOWN IN PROGRESS
DCI1359I: CONTROLLER MOI TASK SHUTDOWN COMPLETED
DCI1309I: CONTROLLER MAIN TASK SHUTDOWN COMPLETED 

Then the step gets an RC 12.

Environment

Release : 2.0

Component : CA DYNAMIC CAPACITY INTELLIGENCE

Cause

The Controller joblog contains also the following USS messages:

Spawn error: err=70x rsn=B0F0028x
Spawn error: err=70x rsn=B0F0028x
Spawn error: err=70x rsn=B0F0028x
Spawn error: err=70x rsn=B0F0028x
  5286 +++            call merrorx 'write_xml','writefile',rc,retval,dst_file
  5131 +++       call write_xml p_nr
  1407 +++      call put_xml g.status
   245 +++     call write_status
   124 +++    call schedule_policy_calculation
    79 +++   call req_testpol
IRX0043I Error running ?, line 5286: Routine not found
     1 +++ CALL DCIC0010
IRX0040I Error running DCIC0007, line 1: Incorrect call to routine
     1 +++ CALL DCIC0010
IRX0043I Error running DCIC0007, line 1: Routine not found
     1 +++ CALL DCIC0010
IRX0043I Error running DCIC0007, line 1: Routine not found
Spawn error: err=70x rsn=B0F0028x

From IBM documentation:
err=70x (Return codes (errnos))

112

0070

EAGAIN

The resource is temporarily unavailable.

rsn=B0F0028x (z/OS UNIX reason codes)

0028	JRMaxProc The maximum number of processes was exceeded. Action: Retry after some processes have ended, or change the maximum number of processes allowed.

So the problem is actually due to the maximum number of processes that can be active at the same time on USS.

Resolution

Increasing the value for MAXPROCSYS parameter in BPXPRMxx member of SYS1.PARMLIB (or dynamically) can be considered.