We are having some problems with the TWS for z/OS dynamic agent workstation in our TWS Master.
I'm posting the message here - maybe someone out there can help.
Problem is that the TWS for z/OS dynamic agent workstation goes offline (agent stopped) in the TWS Master after some hours.
In the message log on the mainframe we see the following messages:
02/06 21.30.28 EELHT15E THE HTTP CLIENT FAILED TO PROCESS A REQUEST FOR BROKER
02/06 21.30.28 EELHT43I HTTP RESPONSE MESSAGE WITH CODE RDBMS_COLUMN_BOUNDS_VIOLATED
02/06 21.31.28 EELHT43I FAILED TO SWITCH BROKER TO HTTPS atp-01ttws01.prod.atp.local:31116
02/06 21.31.28 EELHT43I FAILED TO SWITCH BROKER TO HTTPS ATP-01TTWS02.prod.atp.locla:31116
02/06 21.31.28 EELHT43I FAILED TO SWITCH BROKER TO HTTPS atp-01ttws02.prod.atp.local:31116
02/06 21.35.24 EELW076W NO SERVER PULSE. EVENT WRITER WILL STOP PULSE DETECTION
What does the message "CODE RDBMS_COLUMN_BOUNDS_VIOLATED" mean?
After restart of the TWS for z/OS dynamic agent on the mainframe it works fine for 8-10 hours again?
Any ideas before we create a PMR?
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6 replies Latest Post - 2013-02-14T14:05:41Z by SystemAdmin
Pinned topic TWS for z/OS dynamic agent goes offline in TWS Master
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Updated on 2013-02-14T14:05:41Z at 2013-02-14T14:05:41Z by SystemAdmin
umberto.caselli 200000219Y9 Posts
Re: TWS for z/OS dynamic agent goes offline in TWS Master2013-02-14T11:22:58Z in response to umberto.caselliHello Umberto
Here's the output from the eWAS SystemOut.log file on the TWS Master:
13-02-13 22:33:44:312 CET] 0000001b resourceadvis E AWKRAE100E The resource "http://PRODLPAR:31114/ita/JobManager" missed "2" heartbeat counts. Setting the resource as inactive.
Message on the z/OS agent on mainframe looks like:
22.30.32 EELHT15E THE HTTP CLIENT FAILED TO PROCESS A REQUEST FOR BROKER
22.30.32 EELHT43I HTTP RESPONSE MESSAGE WITH CODE RDBMS_COLUMN_BOUNDS_VIOLATED
22.31.32 EELHT43I FAILED TO SWITCH BROKER TO HTTPS atp-01ttws01.prod.atp.local:31116
22.31.32 EELHT43I FAILED TO SWITCH BROKER TO HTTPS ATP-01TTWS02.prod.atp.local:31116
22.31.32 EELHT43I FAILED TO SWITCH BROKER TO HTTPS atp-01ttws02.prod.atp.local:31116
22.35.00 EELW076W NO SERVER PULSE. EVENT WRITER WILL STOP PULSE DETECTION
HTTPOPTS paramter in z/OS agent:
In broker on TWS Master the RaaHeartBeatInterval=200 seconds (default) and MissedHeartBeatCount=2 (default).
So why do we get this "time-out"?
Is it due to a problem in the TCP/IP layer - if it is - do you have any good suggestions for IP-trace settings?
Note that we have many distributed agents in this TWS (TDWB) master.
mymaestro 200000237U85 PostsACCEPTED ANSWER
Re: TWS for z/OS dynamic agent goes offline in TWS Master2013-02-14T13:55:44Z in response to SystemAdminThere may be DNS problems. The master is trying to contact "PRODLPAR" on port 31114; make sure this DNS name is consistent and unambiguous.
Meanwhile the agent on z/OS tries to reach "atp-01ttws01.prod.atp.local" to send the heartbeat information.
Both of those DNS names seem strange to me (ie., not like "real" names).
Is there a backup master? If so, its name must be consistent as well.
Re: TWS for z/OS dynamic agent goes offline in TWS Master2013-02-14T14:05:41Z in response to mymaestroThank you very much for the feedback Warren.
I know that the DNS names used at customer site seems very strange, but they works and nslookup etc. shows that they resolves as expected.
There is a backup Master on "atp-01ttws02.prod.atp.local" and it is this address that the agent tries to contact when connection to the master on "atp-01ttws01.prod.atp.local" is lost.
I think it works as it should, because the connection is established when the agent is restarted on mainframe and agent keeps connected until in the evening.
mymaestro 200000237U85 Posts