Need a way to set tcpNoDelay on peer transport TCP network connections ----------------------------------------------------------------------
Key: AMQ-1143 URL: https://issues.apache.org/activemq/browse/AMQ-1143 Project: ActiveMQ Issue Type: Improvement Components: Transport Affects Versions: 4.1.0 Environment: Windows XP Professional / JRE 1.5.0_11 Reporter: Andrew Steele I really like the peer transport in ActiveMQ. It seems to be just the kind of setup we need. However, we do have low round-trip latency requirements in some applications. I was seeing unacceptably bad latencies (~200ms) for synchronous round trips. I installed Wireshark and performed network analysis to see what was going on. It appeared to be a Nagle algorithm / TCP ACK delay issue. Essentially, after the first message request and reply, the next request message may be delayed while waiting for a delayed ACK from the other broker. This should be resolvable by enabling tcpNoDelay. However, the peer transport URI provides no mechanism to enable tcpNoDelay. In fact, I went into the source code and found that the TCP network connecter specified in the PeerTransportFactory is hard coded to tcp://localhost:0. Basically, I need a way to turn on tcpNoDelay in peer transport. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.