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https://issues.apache.org/jira/browse/LENS-768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14943222#comment-14943222
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Amareshwari Sriramadasu commented on LENS-768:
----------------------------------------------
I also tried to reproduce through a unit test, but could not succeed. But this
is the scenario, we saw in production: HIveDriver rejects the query as storage
is not supported. JDBC driver timesout on estimate, which resulted in NPE.
> NPE in estimate API if drivers timeout
> --------------------------------------
>
> Key: LENS-768
> URL: https://issues.apache.org/jira/browse/LENS-768
> Project: Apache Lens
> Issue Type: Bug
> Components: server
> Reporter: Amareshwari Sriramadasu
> Assignee: Deepak Barr
> Fix For: 2.4
>
>
> Here is the trace :
> Caused by: java.lang.NullPointerException: cost
> at
> org.apache.lens.server.api.query.cost.QueryCostTOBuilder.<init>(QueryCostTOBuilder.java:31)
> at
> org.apache.lens.server.query.QueryServiceResource.query(QueryServiceResource.java:223)
> at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
> at
> org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:151)
> ... 20 more
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