DCI0999E ERRNO x'3F7' then S0C4 in ZDCA0100 on DCI Agent region

Products

• Dynamic Capacity Intelligence

Issue/Introduction

Dynamic Capacity Intelligence (DCI) 2.0 Agent keep getting messages like the following ones on DCILOG:

20220728 140500  DCI0999E: ERROR READ     : (000003F7/FFFFFFFF)           
20220728 140500  DCI0999E: ERROR SOCKET   : (000003F7/FFFFFFFF)           
20220728 140500  DCI0999E: ERROR CONNECT  : (000003F7/FFFFFFFF)           
20220728 140500  DCI2013E: NO TCPIP CONNECTION TO CONTROLLER.             
20220728 140500  DCI0999E: ERROR CLOSE    : (000003F7/FFFFFFFF)           
20220728 140500  DCI0999E: ERROR SOCKET   : (000003F7/FFFFFFFF)           
20220728 140500  DCI0999E: ERROR CONNECT  : (000003F7/FFFFFFFF)           
20220728 140500  DCI0999E: ERROR CLOSE    : (000003F7/FFFFFFFF)           

Then, when the Agent is stopped, the following message is issued:

EZZ4215I TCP/IP ABEND - DUMPING 

and an SVC DUMP of the TCPIP region and the Agent region is taken. On TCPIP joblog, a message like the following is issued:

16.17.12 STC23743  IEA794I SVC DUMP HAS CAPTURED:  847                               
   847             DUMPID=028 REQUESTED BY JOB (DCIAGNT )                            
   847             DUMP TITLE=TCPIP    V2R3 : Job(DCIAGNT ) UNKNOWN (??????? ?????   
   847                        ?)+?????? S0C4/00000010 TCB P=0061,S=0061,H=0061       

Finally, DCI Agents gets a S0C4 in ZDCA0100

 

Environment

Release : 2.0

Component : DYNAMIC CAPACITY INTELLIGENCE

Cause

DCI Agent suddenly gets disconnected from TCPIP. ERRNO x'3F7' (decimal 1015) means EIBMBADCONNECTIONMATCH

Resolution

Per IBM analysis, it is the same problem described by APAR PH45668.

This is fixed with z/OS V2R4 and V2R5.