I cannot reproduce it one my kylin cluster. Could anyone show us how to 
reproduce that error?
 
I found other users have met same error, counld anyone show us the detail myabe 
useful?

Please attach your detail to https://issues.apache.org/jira/browse/KYLIN-3609. 

Thanks.



俞霄翔/Xiaoxiang Yu 
软件工程师/Software Engineer
电话/Mobile:18516298930
http://kyligence.io <http://kyligence.io/>

 

On [DATE], "[NAME]" <[ADDRESS]> wrote:

    Hi Team,
    
         Query metrics are not getting updated on "host:7070/kylin/dashboard".
    I found below stack trace regarding query metrics facade in Kylin logs.
    
          My Kylin version v2.5 with Hbase v1.x. Am I missing something in
    configuration which is causing below error?
    
    2018-10-21 18:34:41,625 WARN  [Query
    7b16f84c-3053-f64c-2cd2-4ae5348c295c-121] service.QueryService:421 : Write
    metric error.
    java.lang.NullPointerException
    at
    
org.apache.kylin.rest.metrics.QueryMetricsFacade.updateMetricsToReservoir(QueryMetricsFacade.java:148)
    at
    
org.apache.kylin.rest.metrics.QueryMetricsFacade.updateMetrics(QueryMetricsFacade.java:73)
    at
    
org.apache.kylin.rest.service.QueryService.recordMetric(QueryService.java:503)
    at
    
org.apache.kylin.rest.service.QueryService.doQueryWithCache(QueryService.java:419)
    at
    
org.apache.kylin.rest.service.QueryService.doQueryWithCache(QueryService.java:351)
    at
    
org.apache.kylin.rest.controller.QueryController.query(QueryController.java:86)
    at sun.reflect.GeneratedMethodAccessor253.invoke(Unknown Source)
    at
    
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at
    
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    at
    
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
    at
    
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
    at
    
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    at
    
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    at
    
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at
    
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
    at
    
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
    at
    
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at
    
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    at
    
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    
    
    Thank You,
    Shrikant Bang.
    

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