Folks, With Ambari 1.7 version, I was able to add services to an existing cluster your Rest API calls.
https://cwiki.apache.org/confluence/display/AMBARI/Adding+a+New+Service+to+an+Existing+Cluster I am upgrading to Ambari 2.0, but the same Rest API calls, I get a NullPointerException. Did the Rest API calls changed from 1.7 to 2.0 version. Is there a new wiki for Ambari 2.0. Also is there a way to change an existing parameter or add a new parameter to core.xml when bringing up the cluster using a REST API call using blueprints. Thanks, Ajay 26 Jun 2015 18:47:01,533 INFO [qtp-client-139] AmbariManagementControllerImpl:1176 - Received a updateCluster request, clusterId=2, clusterName=Ambari_dokr5, securityType=null, request={ clusterName=Ambari_dokr5, clusterId=2, provisioningState=null, securityType=null, stackVersion=HDP-2.2, desired_scv=null, hosts=[] } 26 Jun 2015 18:47:01,536 WARN [qtp-client-139] ServletHandler:514 - /api/v1/clusters/Ambari_dokr5 java.lang.NullPointerException at org.apache.ambari.server.controller.AmbariManagementControllerImpl.updateCluster(AmbariManagementControllerImpl.java:1222) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.updateClusters(AmbariManagementControllerImpl.java:1160) at org.apache.ambari.server.controller.internal.ClusterResourceProvider$2.invoke(ClusterResourceProvider.java:245) at org.apache.ambari.server.controller.internal.ClusterResourceProvider$2.invoke(ClusterResourceProvider.java:242) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.modifyResources(AbstractResourceProvider.java:331) at org.apache.ambari.server.controller.internal.ClusterResourceProvider.updateResources(ClusterResourceProvider.java:242) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.updateResources(ClusterControllerImpl.java:310) at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.update(PersistenceManagerImpl.java:100) at org.apache.ambari.server.api.handlers.UpdateHandler.persist(UpdateHandler.java:42) at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:103) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:72) at org.apache.ambari.server.api.services.ClusterService.updateCluster(ClusterService.java:151) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:708) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1329) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwar
