ca.portal.admin

IDMS SP #3 Performance Concerns

Discussion created by ca.portal.admin on Aug 18, 2006
Hello Listers !

We are a Z/OS 1.4 shop running IDMS-DC with a mix of ADS/O, DC-COBOL,
CICS COBOL as well as COBOL batch applications.

We recently implemented IDM SR16 SP #3 on one our production systems and
have experienced intermittent online performance issues. Displays of
storage and program pool usage look fine. Buffering is unchanged.
Storage protect is on as it has always been in order to protect the
system from misbehaving COBOL apps which our I/S folks seem unwilling or
unable to fix. Batch activity is present but at normal levels.

Performance on several other systems running this software is fine.

The only thing out of the ordinary I can point to is the fact that
journal reports show a few problem applications doing some extreme
levels of I/O activity when problems occur. Unfortunately, because
of local political issues, I can't set system limits at reasonable
levels to prevent this. I should note we have occasionally seen these
types of problems on this system in the past when these apps do this
type of extreme processing.

Nevertheless, I have been told to see if the R16 SP #3 upgrade is
responsible for the observed problems.

I therefore ask for any input on known performance issues with R16 SP
3#.

TIA
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IDMS R16.0 using TCP/IP to call a Webserv Program
"We have a need to use TCP/IP from a IDMS/DC COBOL program to validate
account numbers that exist on a system running on a Web server. We
would probably have the COBOL program call a generic assembler program
to do the #SOCKET calls. The issue that has arisen is the protocol for
actually talking to Webserv. Has anyone done something similar? Any
examples would be greatly appreciated.

Thanks,
Dan Miley
Lockheed Martin
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Re: IDMS R16.0 using TCP/IP to call a Webserv Program
"Dan,

See my presentation on how to call a web service.
You can use COBOL code to make the API calls.
All you need to do is build a buffer that comforms
to the protocol required by the web service (get, post, soap)
The web service owners should have their preferred formats
for you.

Terry Schwartz

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