Hi All,
In ESB 4.9.0, we introduced coordination for following features
- Scheduled Tasks
- Inbound Endpoints
- Message Processors
In all these features coordination is implemented tightly coupling to the
worker-manager deployment pattern.
But we have the requirement to support coordination for clusters which is
not following the worker-manager deployment pattern.
Currently we are executing a task in a node by looking at following logic.
IF clustered == False OR worker-node == True
execute = true
ELSE
execute = false
So if a node belongs to a cluster, it must be a worker node. We identify
the worker node by looking at the -DworkerNode=true argument.
Ideally we should identify the manager node and stop executing the task for
that, but unfortunately there is no way to do that.
So to support coordination for clusters which are not clustered in worker
manager pattern, we need to identify the clustering pattern.
So we thought of introducing a new parameter for the clustering
configuration in axis2.xml.
<parameter name="clusteringPattern">WorkerManager</parameter>
We had an offline discussion on this with Azeez and Sagara as well, it
seems like this is the best possible way we can handle this for the moment.
Thanks,
IsuruU
--
*Isuru Udana*
Technical Lead
WSO2 Inc.; http://wso2.com
email: [email protected] cell: +94 77 3791887
blog: http://mytecheye.blogspot.com/
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