Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2145#discussion_r68209148
--- Diff:
flink-core/src/main/java/org/apache/flink/metrics/reporter/JMXReporter.java ---
@@ -73,10 +86,61 @@ public JMXReporter() {
//
------------------------------------------------------------------------
@Override
- public void open(Configuration config) {}
+ public void open(Configuration config) {
+ this.jmxServer = startJmxServer(config);
+ }
+
+ private static JMXServer startJmxServer(Configuration config) {
+ JMXServer jmxServer;
+
+ String portRange = config.getString(KEY_METRICS_JMX_PORT,
"9010-9025");
+ String[] ports = portRange.split("-");
+
+ if (ports.length == 0 || ports.length > 2) {
+ throw new IllegalArgumentException("JMX port range was
configured incorrectly. " +
+ "Expected: <startPort>[-<endPort>] Configured:
" + portRange);
+ }
+
+ if (ports.length == 1) { //single port was configured
--- End diff --
that would certainly be nicer
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