What is the HB.js 8.0 default value of the watchdog timer parameter?
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What is the HB.js 8.0 default value of the watchdog timer parameter?

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Article ID: 403949

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Updated On:

Products

HB.js

Issue/Introduction

From the HB.js 6.93, the module zap increased the watchdog timer parameter from 60 to 300 seconds.

* FOLLOWING ZAP CHANGES THE WATCHDOG TIMER FROM 60 SECS TO 300 SECS
*
  NAME HBZIQMGR HBZIQMGR
  VER 7598 00001770
  REP 7598 00007530

Does HB.js 8.0 have the same value or require a fix to apply?

Environment

Z/OS, Java

Cause

During a recent CICS restart, the HB.js 6.93 component in one of CICSPlex's TORs abended S13E.

 

Resolution

The HB.js 6.93 zIIP infrastructure tries to be a good citizen and clean up its own tasks if they appear to be suspended/waiting/stuck for more than 5 minutes. In this case our tasks are waiting on CICS to load DFH modules after a cold start. It appears from the dump that many DFH modules are taking 3 or more seconds to load via a BLDL. The total for all of these loads exceeds the 5-minute timer, at which point the HB.js 6.93 begins canceling its own tasks, causing the S13E. So increase the timer parameter from 60 to 300 seconds to resolve the S13E abend.

However, HB.js 8.0 included the updated code, so the default value is 300 seconds.