Github user d2r commented on a diff in the pull request:
https://github.com/apache/storm/pull/1194#discussion_r55432071
--- Diff: storm-core/src/jvm/org/apache/storm/messaging/netty/Client.java
---
@@ -151,10 +164,35 @@
bootstrap = createClientBootstrap(factory, bufferSize, stormConf);
dstAddress = new InetSocketAddress(host, port);
dstAddressPrefixedName = prefixedName(dstAddress);
+ launchChannelAliveThread();
scheduleConnect(NO_DELAY_MS);
batcher = new MessageBuffer(messageBatchSize);
}
+ /**
+ * This thread helps us to check for channel connection periodically.
+ * This is performed just to know whether the destination address
+ * is alive or attempts to refresh connections if not alive. This
+ * solution is better than what we have now in case of a bad channel.
+ */
+ private void launchChannelAliveThread() {
+ // netty TimerTask is already defined and hence a fully
+ // qualified name
+ timer.schedule(new java.util.TimerTask() {
+ public void run() {
+ try {
+ LOG.debug("running timer task, address {}",
dstAddress);
+ if(closing) {
+ this.cancel();
--- End diff --
Just to be cleaner and avoid a possible race, let's return here so we don't
call `getConnectedChannel`.
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