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Support Article

Not returning connection 0 for database "pegadata" to the pool



Frequent Connection pool exceptions in the logs with Pega 7.2.

Error Messages

Not returning connection 0 for database "pegadata" to the pool

Steps to Reproduce

Not Applicable

Root Cause

Number of available connections are insufficient.


Make the following change to the operating environment:

1. Insert the following attributes into the Resource element for the jdbc/PegaRULES connection

Not returning connection 0 for database "pegadata" to the pool as it previously encountered the following error:

validationQuery="select 1"

2. Add below entries in PRConfig.xml:

<env name="classmap/usemergestatement" value ="false" />
<env name="database/batchupdates" value="-1" />

Published December 18, 2017 - Updated October 8, 2020

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