Robin Mattes created CAMEL-25144:
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Summary: tcp connections may stay open on exception in (re)connect
phase
Key: CAMEL-25144
URL: https://issues.apache.org/jira/browse/CAMEL-25144
Project: Camel
Issue Type: Bug
Components: camel-milo
Affects Versions: 4.22.1
Reporter: Robin Mattes
Because the client.connect() call is outside of the try block that closes the
connection in case of an exception. There is a possibility that a connection to
a PLC is not closed. This can happen if a request timeout exception occurs
during the connection phase.
Because of this bug TCP connections stay open, and a PLC can handle only a hand
full of connections, at some point other OPC clients a blocked from connecting
to this. With error code: BadMaxConnectionsReached.
Fix:
moving the client.connect() call into the try catch block that handles the
disconnect in case of an exception.
SubscriptionManager.java -> functoin performConnect() -> line 764
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