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Posted to dev@synapse.apache.org by "Afkham Azeez (JIRA)" <ji...@apache.org> on 2008/06/26 11:52:45 UTC
[jira] Reopened: (SYNAPSE-360) Dynamic load balancing
[ https://issues.apache.org/jira/browse/SYNAPSE-360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Afkham Azeez reopened SYNAPSE-360:
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We need to start the listeners at last, so that in dynamic LB, the LB can start sending messages to a node only after its listeners have started
> Dynamic load balancing
> ----------------------
>
> Key: SYNAPSE-360
> URL: https://issues.apache.org/jira/browse/SYNAPSE-360
> Project: Synapse
> Issue Type: New Feature
> Components: Endpoints
> Affects Versions: NIGHTLY
> Reporter: Afkham Azeez
> Assignee: Ruwan Linton
> Fix For: NIGHTLY
>
> Attachments: dynamic-lb.patch
>
>
> There are some limitations in the current load balancer implementation. e.g. if we have 2 identical services in 2 different worker nodes, which are fronted by a synapse load balancer instance. In such a case, we need to provide 4 endpoints in the synapse.xml file. As can be seen, this is not a very scalable solution. Hence, I have implemented an dynamic load balancing mechanism where the application members are discovered at runtime, and the endpoint do not need to be statically specified in the synapse.xml file.
> Currently, the application endpoints are calculated by replacing the IP and port of the incoming request with that of the member to which this request will be forwarded to. I have only tested with HTTP/S for the moment. More details about the concept & design can be found here: http://afkham.org/2008/06/fault-resilient-dynamic-load-balancing.html
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