Github user eolivelli commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/669#discussion_r226835980
--- Diff:
zookeeper-common/src/main/java/org/apache/zookeeper/ClientCnxnSocketNetty.java
---
@@ -267,7 +298,7 @@ private void sendPkt(Packet p) {
p.createBB();
updateLastSend();
sentCount++;
- channel.write(ChannelBuffers.wrappedBuffer(p.bb));
+ channel.writeAndFlush(Unpooled.wrappedBuffer(p.bb));
--- End diff --
See these very interesting slides
http://normanmaurer.me/presentations/2014-facebook-eng-netty/slides.html#8.0
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