No it doesn't happen. HTTP/S ports are open only after clustering is
properly initialized, and the LB adds members only after it can
successfully connect to the HTTP/S ports.

On Wed, Sep 17, 2014 at 7:46 PM, Asanka Vithanage <[email protected]> wrote:

>
> Hi All,
>
> I am currently testing on a ELB 211 fronted 1 manager/2 worker AS 521
> cluster. Here when i am following below steps, i am getting below noted
> errors on ELB stack traces.
>
>
> *Steps:*
>
> Setup a 1 manager/2 worker node ELB fronted setup
>
> Invoke SimpleStockQuate service deployed on AS 521(http path) continuously
> using jmeter script(with 1000 jmeter threads and 10 seconds ramp-up period)
>
> Down the worker node using ./wso2server.sh stop command
>
> Startup the downed worker node and check the ELB logs
>
> *Issue:*
>
> Intermittently observed following issue on ELB stack trace, but AS stack
> traces does not show any thing except member left/member join messages
>
>
> Note: I have tried above steps nearly 10 times and out of them 3 times
> observed below error.[Attached ELB log for further reference]
>
> TID: [0] [ELB] [2014-09-17 11:13:55,107]  INFO
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent} -
>  Member left [aa7c330e-eb71-488c-a905-79c3a07ba671]: /10.0.0.85:4300
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent}
>
> TID: [0] [ELB] [2014-09-17 11:13:55,122]  INFO
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent} -
>  Member left [aa7c330e-eb71-488c-a905-79c3a07ba671]: /10.0.0.85:4300
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent}
>
> TID: [0] [ELB] [2014-09-17 11:16:12,293]  INFO
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent} -
>  Member joined [cd2f1123-f734-456f-bc3f-7ae03ec0142a]: /10.0.0.85:4300
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent}
>
> TID: [0] [ELB] [2014-09-17 11:16:12,297]  INFO
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent} -
>  Member joined [cd2f1123-f734-456f-bc3f-7ae03ec0142a]: /10.0.0.85:4300
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent}
>
> TID: [0] [ELB] [2014-09-17 11:16:15,423]  INFO
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent} -
>  Application member Host:10.0.0.85, Remote Host:null, Port: 4300,
> HTTP:9765, HTTPS:9445, Domain: wso2.as.domain, Sub-domain:worker,
> Active:true joined application cluster
> {org.wso2.carbon.core.clustering.hazelcast.HazelcastGroupManagementAgent}
>
> TID: [0] [ELB] [2014-09-17 11:16:16,139]  WARN
> {org.apache.synapse.transport.passthru.TargetHandler} -  Connection closed
> by target host before receiving the request
> {org.apache.synapse.transport.passthru.TargetHandler}
>
> TID: [0] [ELB] [2014-09-17 11:16:16,169]  INFO
> {org.wso2.carbon.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint} -
>  Failed to send message to Member Host:10.0.0.85, Remote Host:null, Port:
> 4300, HTTP:9765, HTTPS:9445, Domain: wso2.as.domain, Sub-domain:worker,
> Active:true . Error Code: 101508
> {org.wso2.carbon.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint}
>
> TID: [0] [ELB] [2014-09-17 11:16:16,170] ERROR
> {org.wso2.carbon.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint} -
>  Error sending request! Connection timeout after request is read by the
> host as.wso2.com . Error code: 101508 Protocol State: RESPONSE HEAD
> {org.wso2.carbon.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint}
>
>
>
> After analyzing AS and ELB stack-traces, i felt that AS worker nodes join
> the cluster before it properly initialized. So when ELB handover the job to
> AS worker nodes, It fails to do the job.
>
>
> Does my observation make sense here or is there any other reason for this
> behavior?
>
>
> WDYT?
>
>
>
> --
> Asanka Vithanage
> Senior Software Engineer -QA
> Mobile: +94 0716286708
> Email: [email protected]
> WSO2 Inc. www.wso2.com
>
>


-- 
*Afkham Azeez*
Director of Architecture; WSO2, Inc.; http://wso2.com
Member; Apache Software Foundation; http://www.apache.org/
* <http://www.apache.org/>*
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*Lean . Enterprise . Middleware*
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