ivmaykov commented on a change in pull request #753: ZOOKEEPER-3204: Reconfig
tests are constantly failing on 3.5 after applying Java 11 fix
URL: https://github.com/apache/zookeeper/pull/753#discussion_r254331186
##########
File path:
zookeeper-server/src/main/java/org/apache/zookeeper/server/NettyServerCnxn.java
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@@ -303,19 +277,126 @@ private boolean checkFourLetterWord(final Channel
channel,
}
}
- public void receiveMessage(ChannelBuffer message) {
+ /**
+ * Process incoming message. This should only be called from the event
+ * loop thread.
+ * @param buf the message bytes to process.
+ */
+ void processMessage(ByteBuf buf) {
+ assert channel.eventLoop().inEventLoop();
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("0x{} queuedBuffer: {}",
+ Long.toHexString(sessionId),
+ queuedBuffer);
+ }
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("0x{} buf {}",
+ Long.toHexString(sessionId),
+ ByteBufUtil.hexDump(buf));
+ }
+
+ if (throttled.get()) {
+ LOG.debug("Received message while throttled");
+ // we are throttled, so we need to queue
+ if (queuedBuffer == null) {
+ LOG.debug("allocating queue");
+ queuedBuffer = channel.alloc().buffer(buf.readableBytes());
Review comment:
This was me trying to preserve the original behavior as much as possible
while doing the netty3 -> netty4 conversion. But some good ideas here, I'll
look into optimizing it in a follow-up.
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