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https://issues.apache.org/jira/browse/CASSANDRA-6198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832045#comment-13832045
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sankalp kohli commented on CASSANDRA-6198:
------------------------------------------
I am having trouble setting the value on the socket. Since we create the socket
from SocketChannel, I am not able to set the TOS.
http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SocketChannel.html
Here is a sample code I tried running on OSX and Linux in Java 1.7. The IP
x.y.z pointed to a test cassandra instance running 2.0.2
Socket socket = SocketChannel.open(new InetSocketAddress("x.y.z",
7000)).socket();
socket.setTrafficClass(8);
System.out.println(socket.getTrafficClass());// WIll print 0
SocketChannel channel = SocketChannel.open(new
InetSocketAddress("x.y.z", 7000));
channel.setOption(StandardSocketOptions.IP_TOS, 8);
System.out.println(channel.getOption(StandardSocketOptions.IP_TOS));//
WIll print 0
System.out.println(channel.socket().getTrafficClass());// WIll print 0
channel.socket().setTrafficClass(8);
System.out.println(channel.socket().getTrafficClass()); // WIll print 0
//This will work and prints 8
Socket socket1 = new Socket("x.y.z", 7000);
socket1.setTrafficClass(8);
System.out.println(socket1.getTrafficClass()); // WIll print 8
> Distinguish streaming traffic at network level
> ----------------------------------------------
>
> Key: CASSANDRA-6198
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6198
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: sankalp kohli
> Priority: Minor
>
> It would be nice to have some information in the TCP packet which network
> teams can inspect to distinguish between streaming traffic and other organic
> cassandra traffic. This is very useful for monitoring WAN traffic.
> Here are some solutions:
> 1) Use a different port for streaming.
> 2) Add some IP header.
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