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https://issues.apache.org/jira/browse/SYNAPSE-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hiranya Jayathilaka reassigned SYNAPSE-845:
-------------------------------------------
Assignee: Miyuru Wanninayaka
> NPE when all child enpoints of nested loadbalance endpoint failed
> -----------------------------------------------------------------
>
> Key: SYNAPSE-845
> URL: https://issues.apache.org/jira/browse/SYNAPSE-845
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1
> Reporter: Miyuru Wanninayaka
> Assignee: Miyuru Wanninayaka
> Fix For: NIGHTLY
>
> Attachments: SYNAPSE-845.diff
>
>
> When nested LB endpoint created like,
> <endpoint name="LB1">
> <loadbalance
> algorithm="org.apache.synapse.endpoints.algorithms.RoundRobin">
> <endpoint>
> <loadbalance
> algorithm="org.apache.synapse.endpoints.algorithms.RoundRobin">
> <endpoint>
> <address
> uri="http://localhost:9000/services/LBService1"/>
> </endpoint>
> <endpoint>
> <address
> uri="http://localhost:9001/services/LBService1"/>
> </endpoint>
> </loadbalance>
> </endpoint>
> <endpoint>
> <loadbalance
> algorithm="org.apache.synapse.endpoints.algorithms.RoundRobin">
> <endpoint>
> <address
> uri="http://localhost:9002/services/LBService1"/>
> </endpoint>
> <endpoint>
> <address
> uri="http://localhost:9003/services/LBService1"/>
> </endpoint>
> </loadbalance>
> </endpoint>
> </loadbalance>
> </endpoint>
> When both servers running on port 9000 and 9001 down, following NPE will be
> thrown because loadbalance endpoint does not have a definition.
> 2012-02-15 15:35:40,057 [-] [HttpClientWorker-6] ERROR NativeWorkerPool
> Uncaught exception
> java.lang.NullPointerException
> at
> org.apache.synapse.endpoints.AbstractEndpoint.isRetryDisabled(AbstractEndpoint.java:356)
> at
> org.apache.synapse.endpoints.LoadbalanceEndpoint.onChildEndpointFail(LoadbalanceEndpoint.java:226)
> at
> org.apache.synapse.endpoints.AbstractEndpoint.invokeNextFaultHandler(AbstractEndpoint.java:563)
> at
> org.apache.synapse.endpoints.AbstractEndpoint.informFailure(AbstractEndpoint.java:545)
> at
> org.apache.synapse.endpoints.LoadbalanceEndpoint.send(LoadbalanceEndpoint.java:141)
> at
> org.apache.synapse.endpoints.LoadbalanceEndpoint.onChildEndpointFail(LoadbalanceEndpoint.java:232)
> at
> org.apache.synapse.endpoints.AbstractEndpoint.invokeNextFaultHandler(AbstractEndpoint.java:563)
> at
> org.apache.synapse.endpoints.AbstractEndpoint.onFault(AbstractEndpoint.java:413)
> at
> org.apache.synapse.endpoints.AddressEndpoint.onFault(AddressEndpoint.java:43)
> at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:102)
> at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:223)
> at
> org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:160)
> at
> org.apache.synapse.transport.nhttp.ClientHandler$1.run(ClientHandler.java:493)
> at
> org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:173)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
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