在当前租户内使用本地交通工具

Question

我想在 WSO2 ESB 上的租户内部署 Carbon 应用程序，并在代理之间使用本地传输。当我使用具有完整域的绝对 URI 时，它看起来工作正常，例如：

local://services/t/my.domain.com/MyFirstProxy

现在我想将消息传递给同一域（租户）中的另一个代理：

local://services/t/my.domain.com/MySecondProxy

我希望可以通过相对路径（不更改域）引用第二个代理，例如local://services/MySecondProxy 但如果我尝试以这种方式使用它，ESB 引擎会抛出：

[2017-01-17 09:35:41,648] ERROR - CarbonContextDataHolder Trying to set the domain from my.domain.com to carbon.super
java.lang.IllegalStateException: Trying to set the domain from my.domain.com to carbon.super
        at org.wso2.carbon.context.internal.CarbonContextDataHolder.setTenantDomain(CarbonContextDataHolder.java:1390)
        at org.wso2.carbon.context.PrivilegedCarbonContext.setTenantDomain(PrivilegedCarbonContext.java:152)
        at org.wso2.carbon.context.PrivilegedCarbonContext.setTenantDomain(PrivilegedCarbonContext.java:141)
        at org.wso2.carbon.mediation.initializer.handler.CarbonContextConfigurator.invoke(CarbonContextConfigurator.java:33)
        at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
        at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
        at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:261)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:167)
        at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:169)
        at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:82)
        at org.wso2.carbon.core.transports.local.CarbonLocalTransportSender.finalizeSendWithToAddress(CarbonLocalTransportSender.java:45)
        at org.apache.axis2.transport.local.LocalTransportSender.invoke(LocalTransportSender.java:77)
        at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
        at org.wso2.carbon.core.multitenancy.transports.TenantTransportSender.invoke(TenantTransportSender.java:236)
        at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
        at org.apache.synapse.core.axis2.DynamicAxisOperation$DynamicOperationClient.send(DynamicAxisOperation.java:185)
        at org.apache.synapse.core.axis2.DynamicAxisOperation$DynamicOperationClient.executeImpl(DynamicAxisOperation.java:167)
        at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
        at org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:581)
        at org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:78)
        at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:548)
        at org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:382)
        at org.apache.synapse.endpoints.AddressEndpoint.send(AddressEndpoint.java:65)
        at org.apache.synapse.endpoints.IndirectEndpoint.send(IndirectEndpoint.java:55)
        at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:121)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:59)
        at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158)
        at org.apache.synapse.core.axis2.ProxyServiceMessageReceiver.receive(ProxyServiceMessageReceiver.java:210)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
        at org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.doSOAP(MultitenantMessageReceiver.java:281)
        at org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.processRequest(MultitenantMessageReceiver.java:226)
        at org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.receive(MultitenantMessageReceiver.java:78)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
        at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:403)
        at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:151)
        at org.apache.axis2.transport.base.threads.NativeWorkerPool.run(NativeWorkerPool.java:172)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

我需要在两个独立的域中独立部署同一个应用程序，我不想使用绝对路径，维护起来很复杂。

有没有简单的解决方案可以在不固定域名的情况下使用本地传输并默认使用当前域？

Answer 1

在您的场景中，您在 ESB 的租户内使用本地传输。所以当你要调用 tenant-based 代理时，你必须使用绝对路径。

当您调用没有域的代理时出现错误，因为它会将其分配给 carbon super。

仅供参考 - 如果你想跨租户进行调用，你应该使用非本地传输，即使他们运行来自同一个虚拟机。 [1] 所以不建议租户使用当地交通

如果需要，可以使用自定义代理路径并参考文档 [2]

在当前租户内使用本地交通工具

Using local transport within current tenant

wso2

wso2esb

wso2carbon