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From GitBox <...@apache.org>
Subject [GitHub] yanghua commented on a change in pull request #7263: [FLINK-11081] Support binding port range for REST server
Date Wed, 12 Dec 2018 02:05:02 GMT
yanghua commented on a change in pull request #7263: [FLINK-11081] Support binding port range
for REST server
URL: https://github.com/apache/flink/pull/7263#discussion_r240860279
 
 

 ##########
 File path: flink-runtime/src/main/java/org/apache/flink/runtime/rest/RestServerEndpoint.java
 ##########
 @@ -181,14 +184,44 @@ protected void initChannel(SocketChannel ch) {
 				.channel(NioServerSocketChannel.class)
 				.childHandler(initializer);
 
-			log.debug("Binding rest endpoint to {}:{}.", restBindAddress, restBindPort);
-			final ChannelFuture channel;
-			if (restBindAddress == null) {
-				channel = bootstrap.bind(restBindPort);
-			} else {
-				channel = bootstrap.bind(restBindAddress, restBindPort);
+			ChannelFuture channel;
+
+			// parse port range definition and create port iterator
+			Iterator<Integer> portsIterator;
+			try {
+				portsIterator = NetUtils.getPortRangeFromString(restBindPort);
+			} catch (Exception e) {
+				throw new IllegalArgumentException("Invalid port range definition: " + restBindPort);
+			}
+
+			int chosenPort = 0;
+			while (portsIterator.hasNext()) {
+				try {
+					chosenPort = portsIterator.next();
+					if (restBindAddress == null) {
+						channel = bootstrap.bind(chosenPort);
+					} else {
+						channel = bootstrap.bind(restBindAddress, chosenPort);
+					}
+					serverChannel = channel.syncUninterruptibly().channel();
+					break;
+				} catch (Exception e) {
 
 Review comment:
   Will add a test to let the first port conflict and choose the second.

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