Colin Dean created NIFI-5789:
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Summary: DBCPConnectionPool controller service always leaves one
connection open
Key: NIFI-5789
URL: https://issues.apache.org/jira/browse/NIFI-5789
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Affects Versions: 1.8.0
Environment: Linux, OpenJDK 8, jTDS 1.3.1, MS SQL Server 2016
Reporter: Colin Dean
Out of the box, NiFi (at least, as of 1.8.0), appears to keep open one database
connection for each DBCPConnectionPool controller service enabled.
I have multiple DBCPConnectionPool controller services configured to access the
same server with different options, so this quickly adds up against a limited
number of connections to my database server. I have a scheduled workflow that
runs ~nightly. Connections need not be active except when in active use during
a short window of time.
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