Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/442#discussion_r58286360
--- Diff: exec/rpc/src/main/java/org/apache/drill/exec/rpc/RpcBus.java ---
@@ -159,19 +159,15 @@ public ChannelClosedHandler(C clientConnection,
Channel channel) {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
String msg;
- if(local!=null) {
+ if(local != null) {
msg = String.format("Channel closed %s <--> %s.", local, remote);
}else{
msg = String.format("Channel closed %s <--> %s.",
future.channel().localAddress(), future.channel().remoteAddress());
}
- if (RpcBus.this.isClient()) {
- if(local != null) {
- logger.info(String.format(msg));
- }
- } else {
- queue.channelClosed(new ChannelClosedException(msg));
- }
+ logger.info(msg); // should we leave this at info level ?
+
+ queue.channelClosed(new ChannelClosedException(msg));
--- End diff --
Nice catch Sudheesh.
Reflecting on this now, I think there is a much cleaner way to structure
this than the current implementation. If we manage this at the connection level
(new "outstanding handler => rpc id mapping" per connection), we can rely on
Netty's RPC thread properties to have a trivial structure that doesn't need to
be thread safe and is closed out on connection termination. Do one of you want
to pick up that modification? I think that would make things much nicer.
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