On Sat, Mar 22, 2014 at 12:27 AM, Sajith Kariyawasam <[email protected]>wrote:
> Hi all,
>
> I have php cartridge's load balancer properties are as below..
>
> "loadBalancer": {
> "type": "lb",
> "property": {
> "name": "default.load.balancer",
> "value": "true"
> }
> },
> }
>
>
> I subscribed to a PHP twice, with two different aliases using the same
> tenant. For second subscription also I got an LB instance spawned, which is
> wrong according to the default load balancer category.
>
> Further looking into this, I could see in logs there are two LB clusters
> are created
>
> TID: [0] [SCC] [2014-03-21 22:53:34,937] INFO
> {org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor}
> - Cluster created: Cluster [serviceName=lb,
> clusterId=lblb-1165195435.lb.domain,
> autoscalePolicyName=simpleAutoscalePolicy,
> deploymentPolicyName=economyDeploymentPolicy, hostNames=[
> lblb-1165195435.apachestratos.org], tenantRange=null, isLbCluster=true,
> properties={load.balancer.ref=default.load.balancer, load.balancer=true}]
> {org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor}
>
> TID: [0] [SCC] [2014-03-21 23:14:24,169] INFO
> {org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor}
> - Cluster created: Cluster [serviceName=lb,
> clusterId=lblb-1683889708.lb.domain,
> autoscalePolicyName=simpleAutoscalePolicy,
> deploymentPolicyName=economyDeploymentPolicy, hostNames=[
> lblb-1683889708.apachestratos.org], tenantRange=null, isLbCluster=false,
> properties={}]
> {org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor}
>
>
> Seems that ApplicationManagementUtil's registerService method shouldn't
> have invoked for the 2nd subscription, because that will create a new
> cluster, or else should we avoid subsribeToLB completely ?
> as in CartridgeSubscriptionManager's
> *lbCartridgeSubscription = subscribeToLB (subscriptionData,
> lbDataCtxt, cartridgeInfo);*
> Thoughts please..
>
IMHO we need to keep track of all subscriptions, including LB ones. We
might need an API method (in Autoscaler?) to get the relevant LB
information for a network partition, such as the LB cluster id, etc. if
there is already spawned LB for that particular network partition.
>
> Thanks,
> Sajith
>
>
> --
> *Sajith Kariyawasam*
> *Senior Software Engineer; WSO2, Inc.*
> *AMIE (SL)*
> *Blog: http://sajithblogs.blogspot.com/ <http://sajithblogs.blogspot.com/>*
> *Mobile: +94772269575 <%2B94772269575>*
>
--
Thanks and Regards,
Isuru H.
+94 716 358 048* <http://wso2.com/>*
