A closed connection error can be seen when use rulebase to invoke the DynamicQuery of TIBCO Hawk Database Adapter™.

A closed connection error can be seen when use rulebase to invoke the DynamicQuery of TIBCO Hawk Database Adapter™.

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Article ID: KB0092258

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Updated On:

Products Versions
TIBCO Hawk Database Adapter -
Not Applicable -

Description

Resolution:
Description:
This error will be seen in the hawk.log if you apply the schedule to the rulebase which invoke the DynamicQuery of TIBCO Hawk Database Adapter™ when the rulebase is out of schedule and the database is restarted during this time.

Environment:
All

Symptoms:
The rulebase did not work. You will find “closed connection” error in the hawk.log.

Cause:
Product defects of the reconnection part.

Resolution:
There are several workarounds for this issue:
1.    Restart TIBCO Hawk Database Adapter™ instance.
2.    Don’t apply the schedule to this kind of rulebase.
3.    Create a DB ping rule to ping the same database and don’t apply any schedule to this rule. This rule will keep the connection alive even the actually rule is out of schedule.

Issue/Introduction

A closed connection error can be seen when use rulebase to invoke the DynamicQuery of TIBCO Hawk Database Adapter™.