pjfanning commented on code in PR #539:
URL: https://github.com/apache/incubator-pekko/pull/539#discussion_r1285057555
##########
project/SbtMultiJvm.scala:
##########
@@ -372,11 +374,41 @@ object MultiJvmPlugin extends AutoPlugin {
val connectInput = input && index == 0
log.debug("Starting %s for %s".format(jvmName, testClass))
log.debug(" with JVM options: %s".format(allJvmOptions.mkString(" ")))
- (testClass, Jvm.startJvm(javaBin, allJvmOptions, runOptions,
jvmLogger, connectInput))
+ val testClass2Process = (testClass, Jvm.startJvm(javaBin,
allJvmOptions, runOptions, jvmLogger, connectInput))
+ if (index == 0) {
+ log.debug("%s for %s 's started as `Controller`, waiting before can
be connected for clients.".format(jvmName,
+ testClass))
+ val controllerHost = hosts.head
+ val serverPort: Int = Integer.getInteger("multinode.server-port",
4711)
+ waitingBeforeConnectable(controllerHost, serverPort,
TimeUnit.SECONDS.toMillis(20L))
+ }
+ testClass2Process
}
processExitCodes(name, processes, log)
}
+ private def waitingBeforeConnectable(host: String, port: Int,
timeoutInMillis: Long): Unit = {
+ val inetSocketAddress = new InetSocketAddress(host, port)
+ def telnet(addr: InetSocketAddress, timeout: Int): Boolean = {
+ val socket: Socket = new Socket()
+ try {
+ socket.connect(inetSocketAddress, timeout)
+ socket.isConnected
+ } catch {
+ case _: Exception => false
+ } finally {
+ socket.close()
+ }
+ }
+
+ val startTime = System.currentTimeMillis()
+ var connectivity = false
+ while (!connectivity && (System.currentTimeMillis() - startTime <
timeoutInMillis)) {
+ connectivity = telnet(inetSocketAddress, 1000)
+ TimeUnit.MILLISECONDS.sleep(100)
+ }
+ }
Review Comment:
seems like a good solution
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