Customizing IBM Tivoli Workload Scheduler for z/OS V8.2 to Improve Performance

148 Customizing IBM Tivoli Workload Scheduler for z/OS V8.2 to Improve Performance

/BAYP/twswork/stdlist/logs

# ls -lisa

total 80

3122 16 drwxrwxr-x 2 TSUOMVS OPCGRP 8192 Feb 18 14:50 .

3121 16 drwxrwxr-x 4 TSUOMVS OPCGRP 8192 Feb 18 14:50 ..

3127 8 -rwxr--r-- 1 TSUOMVS OPCGRP 3450 Feb 18 16:29 20040218_E2EMERGE.log

3129 40 -rwxr--r-- 1 TSUOMVS OPCGRP 17689 Feb 18 17:35 20040218_NETMAN.log

The way permissions are set up on the logs, only the owner or a root ID can write

to them, and because the ownership shows up as TSUOMVS while the E2E

server is running under ID TSTCOPC (and thus the USS netman process is

running under TSTCOPC), the netman process is unable to write to the logs

directory, which causes the AWSEDW026E error in the netman log.

To avoid this problem, ensure that the eqqUID ID used in the EQQPCS05 job has

a unique OMVS UID. This can be enforced by implementing the support for

RACF APAR OW52135 (NEW SUPPORT FOR THE MANAGEMENT OF UNIX

UIDS AND GIDS) or by careful assignment of UIDs when RACF IDs are created.

Using a root authority ID, it is possible to display the current list of IDs and UIDs

from the TSO ISHELL environment as follows:

1. From TSO ISHELL, select SETUP with your cursor, and then enter 7 (ENABLE

SU MODE).

2. Select SETUP with your cursor again, and then enter 2 (USER LIST).

3. In the USER LIST display, select FILE with your cursor, and then enter 2

(SORT UID).

4. Select a UID that is not currently in use.

8.2.2 E2E server user ID not eqqUID

To document the effect of running the E2E server with a user ID that is not

eqqUID, we ran the EQQPCS05 job with eqquid=O82STSO and then set up the

E2E server task O82S to run under ID O82C using the RACF commands listed in

Example 8-18.

Example 8-18 RACF commands

RALTER STARTED O82S.* -

STDATA(USER(O82C) GROUP(OPC) TRUSTED(NO))

SETROPTS RACLIST(STARTED) REFRESH

SETROPTS GENERIC(STARTED) REFRESH

The RACF error messages shown in Example 8-19 on page 149 were issued for

the O82S (E2E server) task; however, the task kept running.

Chapter 8. Troubleshooting 149

Example 8-19 RACF error messages

ICH408I USER(O82C ) GROUP(OPC ) NAME(TWS82 CONTROLLER )

/var/TWS820/inst/Intercom.msg

CL(FSOBJ ) FID(01D9F0F1F9F1C5000F04000018F90000)

INSUFFICIENT AUTHORITY TO OPEN

ACCESS INTENT(RW-) ACCESS ALLOWED(GROUP ---)

EFFECTIVE UID(0000000146) EFFECTIVE GID(0001000009)

ICH408I USER(O82C ) GROUP(OPC ) NAME(TWS82 CONTROLLER )

/var/TWS820/inst/Mailbox.msg

CL(FSOBJ ) FID(01D9F0F1F9F1C5000F04000018F00000)

INSUFFICIENT AUTHORITY TO OPEN

ACCESS INTENT(RW-) ACCESS ALLOWED(GROUP ---)

EFFECTIVE UID(0000000146) EFFECTIVE GID(0001000009)

ICH408I USER(O82C ) GROUP(OPC ) NAME(TWS82 CONTROLLER )

/var/TWS820/inst/Intercom.msg

CL(FSOBJ ) FID(01D9F0F1F9F1C5000F04000018F90000)

INSUFFICIENT AUTHORITY TO OPEN

ACCESS INTENT(RW-) ACCESS ALLOWED(GROUP ---)

EFFECTIVE UID(0000000146) EFFECTIVE GID(0001000009)

The server EQQMLOG contained the messages shown in Example 8-20.

Example 8-20 Server EQQMLOG messages

EQQPT35E Unable to Open Symphony and/or events files, Reason: AWSBDY102E

Attempt to use NULL or uninitialized comarea.

EQQPT40I Output Translator thread is shutting down

The user ID of the server task was corrected using the RACF commands shown

in Example 8-21, and then the server task was restarted.

Example 8-21 RACF commands to correct the user ID of the server task

RALTER STARTED O82S.* -

STDATA(USER(O82STSO) GROUP(OPC) TRUSTED(NO))

SETROPTS RACLIST(STARTED) REFRESH

SETROPTS GENERIC(STARTED) REFRESH

Note that now the user ID of the server task matches eqqUID. However, access

to the stdlist/logs directory in USS WRKDIR was still not right, causing the RACF

message shown in Example 8-22 on page 150 to be issued continuously in the

server JESMSGLG.