Sumit Mohanty created AMBARI-5510:
-------------------------------------
Summary: NPE in ganglia property provider
Key: AMBARI-5510
URL: https://issues.apache.org/jira/browse/AMBARI-5510
Project: Ambari
Issue Type: Bug
Affects Versions: 1.6.0
Reporter: Sumit Mohanty
Assignee: Sumit Mohanty
Fix For: 1.6.0
Hit NPE when accessing api/vi/clusters/c1/hosts/c6403.ambari.apache.org.
The repro steps are not simple as I was trying to close the browser during Add
Host Wizard progress and then trying to delete the host to start the wizard
again.
In any case, we can add some null checks to avoid the NPE.
{noformat}
00:30:36,028 WARN [qtp762119098-106] ServletHandler:514 -
/api/v1/clusters/c1/hosts/c6403.ambari.apache.org
java.lang.NullPointerException
at
org.apache.ambari.server.controller.ganglia.GangliaPropertyProvider$RRDRequest.convertToNumber(GangliaPropertyProvider.java:621)
at
org.apache.ambari.server.controller.ganglia.GangliaPropertyProvider$RRDRequest.populateResources(GangliaPropertyProvider.java:490)
at
org.apache.ambari.server.controller.ganglia.GangliaPropertyProvider.populateResources(GangliaPropertyProvider.java:120)
at
org.apache.ambari.server.controller.internal.ClusterControllerImpl.populateResources(ClusterControllerImpl.java:129)
at
org.apache.ambari.server.api.query.QueryImpl.queryForResources(QueryImpl.java:336)
at
org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:184)
at
org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:67)
at
org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:116)
at
org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:80)
at
org.apache.ambari.server.api.services.HostService.getHost(HostService.java:80)
at sun.reflect.GeneratedMethodAccessor75.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
{noformat}
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