Hi Imesh Me too get the same error when accessing via LB. It works for some time and throws this error. When I restart the LB, it works fine again
[2014-02-25 21:50:01,065] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:50:16,065] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:50:16,066] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:50:31,066] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:50:31,066] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:50:46,066] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:50:46,067] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:51:01,067] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:51:01,067] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:51:16,067] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:51:16,067] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:51:31,068] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:51:31,068] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:51:46,068] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:51:46,068] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:52:01,069] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:52:01,069] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:52:16,069] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:52:16,069] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:52:31,070] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:52:31,070] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:52:38,239] DEBUG - SynapseMessageReceiver Synapse received a new message for message mediation... [2014-02-25 21:52:38,239] DEBUG - SynapseMessageReceiver Received To: /www/test2.php [2014-02-25 21:52:38,239] DEBUG - SynapseMessageReceiver SOAPAction: null [2014-02-25 21:52:38,239] DEBUG - SynapseMessageReceiver WSA-Action: null [2014-02-25 21:52:38,239] DEBUG - Axis2SynapseEnvironment Injecting MessageContext [2014-02-25 21:52:38,239] DEBUG - Axis2SynapseEnvironment Using Main Sequence for injected message [2014-02-25 21:52:38,239] DEBUG - SequenceMediator Start : Sequence <main> [2014-02-25 21:52:38,239] DEBUG - SequenceMediator Setting the onError handler : fault for the sequence : main [2014-02-25 21:52:38,239] DEBUG - SequenceMediator Sequence <SequenceMediator> :: mediate() [2014-02-25 21:52:38,239] DEBUG - SequenceMediator Mediation started from mediator position : 0 [2014-02-25 21:52:38,239] DEBUG - InMediator Start : In mediator [2014-02-25 21:52:38,239] DEBUG - InMediator Current message is incoming - executing child mediators [2014-02-25 21:52:38,239] DEBUG - InMediator Sequence <InMediator> :: mediate() [2014-02-25 21:52:38,239] DEBUG - InMediator Mediation started from mediator position : 0 [2014-02-25 21:52:38,239] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,239] DEBUG - PropertyMediator Setting property : SERVICE_PREFIX at scope : default to : http://10.142.214.25:8280/ (i.e. result of expression : $axis2:SERVICE_PREFIX) [2014-02-25 21:52:38,239] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,239] DEBUG - SendMediator Start : Send mediator [2014-02-25 21:52:38,239] DEBUG - ClassEndpoint Start sending message [2014-02-25 21:52:38,239] DEBUG - HttpSessionDispatcher Extracted Host Name : pak.isuruh.lk [2014-02-25 21:52:38,239] DEBUG - HttpSessionDispatcher Endpoint Address : /www/test2.php [2014-02-25 21:52:38,239] DEBUG - HttpSessionDispatcher Content Type : null [2014-02-25 21:52:38,239] DEBUG - HttpSessionDispatcher A request received with the Host Name : pak.isuruh.lk:8280 [2014-02-25 21:52:38,240] DEBUG - HttpSessionDispatcher Couldn't find the Cookie header to find the session [2014-02-25 21:52:38,240] DEBUG - HttpSessionDispatcher Did not find a session info obj. [2014-02-25 21:52:38,240] DEBUG - TenantAwareLoadBalanceEndpoint Multi-tenancy enabled, scanning URL for tenant... [2014-02-25 21:52:38,240] DEBUG - TenantAwareLoadBalanceEndpoint Request URL: /www/test2.php [2014-02-25 21:52:38,240] DEBUG - TenantAwareLoadBalanceEndpoint Tenant identifier regex: t/([^/]*)/ [2014-02-25 21:52:38,240] DEBUG - TenantAwareLoadBalanceEndpoint Tenant identifier not found in URL [2014-02-25 21:52:38,240] WARN - SynapseMessageReceiver Executing fault handler due to exception encountered [2014-02-25 21:52:38,242] WARN - FaultHandler ERROR_CODE : 0 [2014-02-25 21:52:38,242] WARN - FaultHandler ERROR_MESSAGE : Error occured when execute the class endpoint [2014-02-25 21:52:38,242] WARN - FaultHandler ERROR_DETAIL : org.apache.synapse.SynapseException: Error occured when execute the class endpoint at org.apache.synapse.endpoints.ClassEndpoint.send(ClassEndpoint.java:89) at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:97) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:77) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:47) at org.apache.synapse.mediators.filters.InMediator.mediate(InMediator.java:61) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:77) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:47) at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:131) at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:228) at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:83) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:336) at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:168) at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.NullPointerException at org.apache.stratos.load.balancer.cache.LoadBalancerCache.getInteger(LoadBalancerCache.java:121) at org.apache.stratos.load.balancer.cache.AlgorithmContextCache.getCurrentMemberIndex(AlgorithmContextCache.java:43) at org.apache.stratos.load.balancer.algorithm.AlgorithmContext.getCurrentMemberIndex(AlgorithmContext.java:47) at org.apache.stratos.load.balancer.algorithm.RoundRobin.getNextMember(RoundRobin.java:53) at org.apache.stratos.load.balancer.RequestDelegator.findNextMemberInCluster(RequestDelegator.java:99) at org.apache.stratos.load.balancer.RequestDelegator.findNextMemberFromHostName(RequestDelegator.java:54) at org.apache.stratos.load.balancer.endpoint.TenantAwareLoadBalanceEndpoint.findNextMember(TenantAwareLoadBalanceEndpoint.java:216) at org.apache.stratos.load.balancer.endpoint.TenantAwareLoadBalanceEndpoint.send(TenantAwareLoadBalanceEndpoint.java:124) at org.apache.synapse.endpoints.ClassEndpoint.send(ClassEndpoint.java:87) ... 16 more [2014-02-25 21:52:38,242] WARN - FaultHandler ERROR_EXCEPTION : org.apache.synapse.SynapseException: Error occured when execute the class endpoint [2014-02-25 21:52:38,242] WARN - FaultHandler FaultHandler : org.apache.synapse.mediators.MediatorFaultHandler@59f91f38 [2014-02-25 21:52:38,242] WARN - MediatorFaultHandler Executing fault handler mediator : fault [2014-02-25 21:52:38,242] DEBUG - SequenceMediator Start : Sequence <fault> [2014-02-25 21:52:38,242] DEBUG - SequenceMediator Sequence <SequenceMediator> :: mediate() [2014-02-25 21:52:38,242] DEBUG - SequenceMediator Mediation started from mediator position : 0 [2014-02-25 21:52:38,242] DEBUG - ScriptMediator Start : Script mediator [2014-02-25 21:52:38,242] DEBUG - ScriptMediator Scripting language : js source : specified inline function : mediate [2014-02-25 21:52:38,246] DEBUG - ScriptMediator End : Script mediator return value : true [2014-02-25 21:52:38,246] DEBUG - SwitchMediator Start : Switch mediator [2014-02-25 21:52:38,246] DEBUG - SwitchMediator XPath : get-property('ERROR_CODE') evaluates to : 0 [2014-02-25 21:52:38,247] DEBUG - SwitchMediator None of the switch cases matched - executing default [2014-02-25 21:52:38,247] DEBUG - AnonymousListMediator Sequence <AnonymousListMediator> :: mediate() [2014-02-25 21:52:38,247] DEBUG - AnonymousListMediator Mediation started from mediator position : 0 [2014-02-25 21:52:38,247] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,247] DEBUG - PropertyMediator Setting property : HTTP_SC at scope : axis2 to : 500 (i.e. constant : 500) [2014-02-25 21:52:38,247] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,247] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,247] DEBUG - PropertyMediator Removing property : NO_ENTITY_BODY (scope:axis2) [2014-02-25 21:52:38,247] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,248] DEBUG - HeaderMediator Start : Header mediator [2014-02-25 21:52:38,248] DEBUG - HeaderMediator Removing SOAP Header : To [2014-02-25 21:52:38,248] DEBUG - HeaderMediator End : Header mediator [2014-02-25 21:52:38,248] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,248] DEBUG - PropertyMediator Setting property : RESPONSE at scope : default to : true (i.e. constant : true) [2014-02-25 21:52:38,248] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,248] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,248] DEBUG - PropertyMediator Setting property : messageType at scope : axis2 to : text/html (i.e. constant : text/html) [2014-02-25 21:52:38,249] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,249] DEBUG - PropertyMediator Start : Property mediator [2014-02-25 21:52:38,249] DEBUG - PropertyMediator Setting property : contentType at scope : axis2 to : text/html (i.e. constant : text/html) [2014-02-25 21:52:38,249] DEBUG - PropertyMediator End : Property mediator [2014-02-25 21:52:38,249] DEBUG - SendMediator Start : Send mediator [2014-02-25 21:52:38,249] DEBUG - SendMediator Sending response message using implicit message properties.. Sending To: null SOAPAction: null [2014-02-25 21:52:38,250] DEBUG - SendMediator End : Send mediator [2014-02-25 21:52:38,250] DEBUG - SequenceMediator End : Sequence <fault> [2014-02-25 21:52:46,070] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:52:46,072] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 [2014-02-25 21:53:01,072] DEBUG - LoadBalancerStatisticsNotifier Publishing load balancer statistics [2014-02-25 21:53:01,072] DEBUG - LoadBalancerStatisticsNotifier In-flight request count published to cep: [cluster-id] pak.php.domain [network-partition] ec2 [value] 0 On Mon, Feb 24, 2014 at 9:51 AM, Imesh Gunaratne <[email protected]> wrote: > Hi Manula, > > For me it looks like a problem with the synapse load balancing endpoint. > Will it be possible for you to re-create this issue by enabling debug logs > in log4j.properties file in load balancer and post the trace file? > > log4j.logger.org.apache.stratos.load.balancer=DEBUG > log4j.logger.org.apache.synapse=DEBUG > > Thanks > > > On Wed, Feb 19, 2014 at 6:29 AM, Manula Chathurika Thantriwatte < > [email protected]> wrote: > >> Hi, >> >> $subject. >> >> I have subscribed to php cartridge and can access via lb from the >> beginning. But after some time it want. No errors in lb or any other >> product logs. In browser it shows "Error occured when execute the class >> endpoint". Any one know about this issue ? >> >> -- >> Regards, >> Manula Chathurika Thantriwatte >> Software Engineer >> WSO2 Inc. : http://wso2.com >> lean . enterprise . middleware >> >> email : [email protected] / [email protected] >> phone : +94 772492511 >> blog : http://manulachathurika.blogspot.com/ >> >> >> >> > -- Udara Liyanage Software Engineer WSO2, Inc.: http://wso2.com lean. enterprise. middleware web: http://udaraliyanage.wordpress.com phone: +94 71 443 6897
