Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/442#discussion_r58611408
--- 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),
future.channel());
clientConnection.close();
--- End diff --
I believe this is still required because we could be in a backpressure
blocking state and need to error out the pending messages. My patch tries to
consolidate the connection close behavior (so we have one place to do work
instead of two). Note that right now we add close handlers in both the
connection and the rpc bus which is confusing/unclean.
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