Hi,
I have now implemented $subject [1] and also provided a diff for Carbon
Kernel patch0012 [2]. This feature provides functionality to automatically
discover Carbon clusters via the topology when running on Private PaaS.
*How it works*
Once a Carbon server starts it will wait until the topology gets
initialized via the message broker. Then it will query the member IP
addresses of the given cluster(s) in the topology. Thereafter Hazelcast
network configuration will be initialized with the above IP addresses. As a
result the Hazelcast instance of the above Carbon server will get connected
all the other members in the cluster. In addition once a new member is
added to the cluster, all the other members will get connected to the new
member.
*Installation*
Apply Carbon kernel patch0012. This includes a modification in the Carbon
Core component for allowing to add third party membership schemes.
Copy following JAR files to the dropins directory of the Carbon server:
activemq_client_5.10.0_1.0.0.jar
geronimo_j2ee_management_1.1_spec_1.0.1_1.0.0.jar
hawtbuf_1.9_1.0.0.jar
org.apache.commons.lang3_3.1.0.jar
org.apache.stratos.common-4.1.0.jar
org.apache.stratos.messaging-4.1.0.jar
private-paas-membership-scheme-4.1.0-SNAPSHOT.jar
Update axis2.xml with the following configuration, cluster id parameter
need to contain the cluster id of the relevant carbon server cluster:
<clustering
class="org.wso2.carbon.core.clustering.hazelcast.HazelcastClusteringAgent"
enable="true">
...
<parameter name="membershipScheme">private-paas</parameter>
<parameter
name="membershipSchemeClassName">org.wso2.carbon.ppaas.PrivatePaaSBasedMembershipScheme</parameter>
<parameter name="clusterIds">cluster-1,cluster-2</parameter>
...
</clustering>
[1]
https://github.com/wso2/product-private-paas/tree/master/extensions/carbon/ppaas-membership-scheme
[2] https://wso2.org/jira/browse/CARBON-15340
Thanks
--
*Imesh Gunaratne*
Senior Technical Lead
WSO2 Inc: http://wso2.com
T: +94 11 214 5345 M: +94 77 374 2057
W: http://imesh.gunaratne.org
Lean . Enterprise . Middleware
_______________________________________________
Architecture mailing list
[email protected]
https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
