Jerry Cwiklik created UIMA-4773:
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Summary: UIMA DUCC: JP throws BindException on startup if port is
not available
Key: UIMA-4773
URL: https://issues.apache.org/jira/browse/UIMA-4773
Project: UIMA
Issue Type: Bug
Components: DUCC
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.1.0-Ducc
On startup a JP throws
java.net.BindException: Address already in use
A JP starts a Camel route on a socket to listen for agent STOP requests. This
route can fail if a socket port is not available.
Change Agent to send SIGTERM signal to JP to force an orderly shutdown instead
of sending a STOP request over a dedicated socket channel. with this change,
the JP no longer needs to create a Camel route over socket listener. Instead it
just needs to catch the SIGTERM signal, quiesce and stop.
The Agent will send SIGKILL (-9) to a process that refuses to stop for SIGTERM.
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