GJL commented on a change in pull request #7541: [FLINK-11356][tests] Port
JobManagerStartupTest to new code base
URL: https://github.com/apache/flink/pull/7541#discussion_r249714551
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/clusterframework/BootstrapToolsTest.java
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@@ -360,4 +368,32 @@ public void testConcurrentActorSystemCreation() throws
Exception {
ExecutorUtils.gracefulShutdown(10000L,
TimeUnit.MILLISECONDS, executorService);
}
}
+
+ /**
+ * Tests that the {@link ActorSystem} fails with an expressive
exception if it cannot be
+ * instantiated due to an occupied port.
+ */
+ @Test
+ public void testActorSystemInstantiationFailureWhenPortOccupied()
throws Exception {
+ ServerSocket portOccupier;
+ final int port;
+
+ try {
+ port = NetUtils.getAvailablePort();
+ portOccupier = new ServerSocket(port, 10,
InetAddress.getByName("0.0.0.0"));
+ }
+ catch (Throwable t) {
+ // could not find free port, or open a connection there
Review comment:
It's acceptable to silently fail if we cannot open a socket?
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