Matt Burgess created NIFI-2927:
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Summary: HiveConnectionPool - Invalid connections are returned
Key: NIFI-2927
URL: https://issues.apache.org/jira/browse/NIFI-2927
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Reporter: Matt Burgess
The connections in the HiveConnectionPool controller service become invalid for
several reasons : session timeout, firewalls block idle connections, outages of
backend server, etc.
In the current NiFi release, these connections rest in the pool as good but
when the user uses one of them, a SocketException: Socket closed error is
encountered.
Proposed solution is to implement the same fix as in NIFI-2381, the aim is to
"pretend periodically to test all the connections, drop the invalid ones,
create new ones and maintain all the pool healthy."
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