[jbossts-issues] [JBoss JIRA] (JBTM-2010) Scalability Enhancements for BlackTie

Tom Jenkinson (JIRA) jira-events at lists.jboss.org
Tue Nov 5 06:59:01 EST 2013

Tom Jenkinson created JBTM-2010:

             Summary: Scalability Enhancements for BlackTie
                 Key: JBTM-2010
                 URL: https://issues.jboss.org/browse/JBTM-2010
             Project: JBoss Transaction Manager
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
          Components: BlackTie
            Reporter: Tom Jenkinson
            Assignee: Tom Jenkinson
             Fix For: 6.0.0.Final

At the moment we are using traditional IO techniques which means there is a single thread and connection per service on the C++ side and a single thread per server per service on the WildFly side.

For example:
10 servers with 10 services = 10 threads on the client side, 100 threads on the wildfly side

We should look to use AIO on the Java side and apr pollset on the C++ side to reduce the number of threads. This will not reduce the physical number of connections but should allow the server to scale much higher.

1. use AIO for StompConnect, 
2. add a configurably sized connection polling pool to BlackTie C++,
3. use a common pool for servicedispatchers, so for example if 10 services with a size of 10 would normally mean 100 threads, we can say 10 services, size of 10, share 10 threads.

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