CICS transaction number

Products

• IDMS
• IDMS - Database
• IDMS - ADS

Issue/Introduction

Question:

The CICS person are asking me if it's possible tie CICS task number to each transaction on IDMS side.

 

Answer:

Here's some info about the fact that the CICS transaction numbered is stored in the ERE. But IDMS doesn't store this info anywhere after the fact to report on, so you would need to access the ERE with an exit to retrieve/save this information somewhere.

 

There are two places in the ERE control block to find the CICS transaction number

1) ERELID2 offset ERE+x'3C' but this is valid only while the ERE is active and once the ERE becomes inactive, ERELID2 is then set to zero.

2) In the SVC extension of the ERE extension of the ERE the CICS transaction

number can be found at offset ERE+x'100' which is moved there by the IDMS SVC and used later by IDMS Performance Monitor statistics. To locate the SVC extension in the ERE use the following equation:

ADDRESS OF FIRST ITEM = A(ERE) + ESESOXOF + ESESOXLN + SVXFIXHL

or A(ERE)+X'90'+X'50'+x'04' = SVC extension Header length

 

The layout of the CICS ERUS fields are listed below (ERE X'E8')

 

PMXCJBNM DS CL8 CICS REGION JOB NAME

PMXCTI DS CL4 CICS TRANSACTION ID (PCTTI)

PMXCTETI DS CL4 CICS TERMINAL NAME (TCTTETI)

PMXCLID1 DS CL4 TPMON LREID1 - IDMSINTC TPNAME

PMXCLID2 DS F TPMON LREID2 - CICS TASK ID

 

PMXCTEOI DS CL8 CICS OPERATOR ID (TCTTEOI)

Environment

Release: IDADSO00100-18.5-ADS-for CA-IDMS
Component: