Ajit Kumar created AMBARI-15726:
-----------------------------------
Summary: Removing unknown host from cluster throws NPE
Key: AMBARI-15726
URL: https://issues.apache.org/jira/browse/AMBARI-15726
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.4.0
Reporter: Ajit Kumar
Assignee: Ajit Kumar
Removing unknown host from cluster throws NPE exception:
API call:
{code}
curl -u admin:admin -H 'X-Requested-By: ambari' -X DELETE
http://c6401.ambari.apache.org:8080/api/v1/clusters/a/hosts/c6402.ambari.apache.org
{
"status": 500,
"message": "Server Error"
}
{code}
stack trace:
{code}
06 Apr 2016 01:12:34,724 WARN [qtp-ambari-client-95] ServletHandler:628 -
/api/v1/clusters/a/hosts/c6402.ambari.apache.org
java.lang.NullPointerException
at java.util.HashSet.<init>(HashSet.java:118)
at
org.apache.ambari.server.state.cluster.ClustersImpl.deleteHost(ClustersImpl.java:843)
at
org.apache.ambari.server.controller.internal.HostResourceProvider.deleteHosts(HostResourceProvider.java:889)
at
org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:128)
at
org.apache.ambari.server.controller.internal.HostResourceProvider$4.invoke(HostResourceProvider.java:344)
at
org.apache.ambari.server.controller.internal.HostResourceProvider$4.invoke(HostResourceProvider.java:341)
at
org.apache.ambari.server.controller.internal.AbstractResourceProvider.invokeWithRetry(AbstractResourceProvider.java:451)
at
org.apache.ambari.server.controller.internal.AbstractResourceProvider.modifyResources(AbstractResourceProvider.java:332)
at
org.apache.ambari.server.controller.internal.HostResourceProvider.deleteResourcesAuthorized(HostResourceProvider.java:341)
at
org.apache.ambari.server.controller.internal.AbstractAuthorizedResourceProvider.deleteResources(AbstractAuthorizedResourceProvider.java:332)
at
org.apache.ambari.server.controller.internal.ClusterControllerImpl.deleteResources(ClusterControllerImpl.java:330)
at
org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.delete(PersistenceManagerImpl.java:132)
at
org.apache.ambari.server.api.handlers.DeleteHandler.persist(DeleteHandler.java:45)
at
org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72)
at
org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:145)
at
org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:119)
at
org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:83)
at
org.apache.ambari.server.api.services.HostService.deleteHost(HostService.java:194)
{code}
API should return 404 NoSuchResourceException.
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