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(Updated June 3, 2016, 5:30 p.m.) Review request for Ambari, Alejandro Fernandez, Nate Cole, and Robert Levas. Changes ------- Switched to using a Guava table as a way to bind two String keys to a single mapped value. Bugs: AMBARI-17036 https://issues.apache.org/jira/browse/AMBARI-17036 Repository: ambari Description ------- When retrieving JMX properties on large clusters, if there are JMX endpoints which are unreachable, the URI protocol value is never cached. As a result, multiple attempts are made to get the JMX protocol. Normally, this would be fine, except that retrieving the configuration is using the {{ClusterResourceProvider}}, which in turn, builds a {{ClusterHealthReport}}. {code} at org.apache.ambari.server.orm.dao.ServiceDesiredStateDAO.findByPK(ServiceDesiredStateDAO.java:41) at org.apache.ambari.server.orm.dao.ServiceDesiredStateDAO$$EnhancerByGuice$$d1ec71cf.CGLIB$findByPK$1(<generated>) at org.apache.ambari.server.orm.dao.ServiceDesiredStateDAO$$EnhancerByGuice$$d1ec71cf$$FastClassByGuice$$9cad416f.invoke(<generated>) at com.google.inject.internal.cglib.proxy.$MethodProxy.invokeSuper(MethodProxy.java:228) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at org.apache.ambari.server.orm.AmbariLocalSessionInterceptor.invoke(AmbariLocalSessionInterceptor.java:43) at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:72) at com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:52) at org.apache.ambari.server.orm.dao.ServiceDesiredStateDAO$$EnhancerByGuice$$d1ec71cf.findByPK(<generated>) at org.apache.ambari.server.state.ServiceImpl.getServiceDesiredStateEntity(ServiceImpl.java:759) at org.apache.ambari.server.state.ServiceImpl.getMaintenanceState(ServiceImpl.java:732) at org.apache.ambari.server.controller.MaintenanceStateHelper.getEffectiveState(MaintenanceStateHelper.java:216) at org.apache.ambari.server.controller.MaintenanceStateHelper.getEffectiveState(MaintenanceStateHelper.java:180) at org.apache.ambari.server.controller.MaintenanceStateHelper.getEffectiveState(MaintenanceStateHelper.java:194) at org.apache.ambari.server.state.cluster.ClusterImpl.getClusterHealthReport(ClusterImpl.java:3136) at org.apache.ambari.server.state.cluster.ClusterImpl.convertToResponse(ClusterImpl.java:2084) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getClusters(AmbariManagementControllerImpl.java:950) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getClusters(AmbariManagementControllerImpl.java:3082) at org.apache.ambari.server.controller.internal.ClusterResourceProvider$1.invoke(ClusterResourceProvider.java:202) at org.apache.ambari.server.controller.internal.ClusterResourceProvider$1.invoke(ClusterResourceProvider.java:199) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.getResources(AbstractResourceProvider.java:302) at org.apache.ambari.server.controller.internal.ClusterResourceProvider.getResources(ClusterResourceProvider.java:199) at org.apache.ambari.server.controller.internal.AbstractProviderModule.getDesiredConfigVersion(AbstractProviderModule.java:954) at org.apache.ambari.server.controller.internal.AbstractProviderModule.getJMXProtocol(AbstractProviderModule.java:1154) at org.apache.ambari.server.controller.jmx.JMXPropertyProvider.getJMXProtocol(JMXPropertyProvider.java:402) at org.apache.ambari.server.controller.jmx.JMXPropertyProvider.populateResource(JMXPropertyProvider.java:221) at org.apache.ambari.server.controller.metrics.ThreadPoolEnabledPropertyProvider$1.call(ThreadPoolEnabledPropertyProvider.java:222) at org.apache.ambari.server.controller.metrics.ThreadPoolEnabledPropertyProvider$1.call(ThreadPoolEnabledPropertyProvider.java:219) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) 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) {code} Diffs (updated) ----- ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AbstractProviderModule.java 591441b ambari-server/src/main/java/org/apache/ambari/server/state/ConfigHelper.java 488603a ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java 58975f7 Diff: https://reviews.apache.org/r/48221/diff/ Testing ------- mvn clean test Thanks, Jonathan Hurley