Github user neykov commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/560#discussion_r101577936
--- Diff:
launcher/src/main/java/org/apache/brooklyn/launcher/BrooklynWebServer.java ---
@@ -447,7 +450,15 @@ public synchronized void start() throws Exception {
rootContext.setTempDirectory(Os.mkdirs(new File(webappTempDir,
"war-root")));
server.setHandler(handlers);
- server.start();
+ try {
+ server.start();
+ } catch (BindException e) {
+ // port discovery routines may take some time to clear, e.g.
250ms for SO_TIMEOUT
+ // tests fail because of this; see if adding a delay improves
things
+ log.warn("Initial server start-up failed binding (retrying
after a delay): "+e);
+ Time.sleep(Duration.millis(500));
+ server.start();
--- End diff --
https://github.com/apache/brooklyn-server/pull/563 - will let it run a few
times to see how it behaves on the salves. Obviously not failing doesn't mean
anything.
While experimenting I found that `SO_REUSEADDR` is activated **by default**
on `ServerSocket`.
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