[jira] [Commented] (CASSANDRA-6419) Setting max_hint_window_in_ms explicitly to null causes problems with JMX view

["Robert Coli (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-6419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13859102#comment-13859102 ] 

Robert Coli commented on CASSANDRA-6419:
----------------------------------------

FWIW, this looks like a single case of the systemic issue described in CASSANDRA-4967.

> Setting max_hint_window_in_ms explicitly to null causes problems with JMX view
> ------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6419
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6419
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Config
>            Reporter: Nate McCall
>            Assignee: Nate McCall
>            Priority: Minor
>             Fix For: 1.2.14, 2.0.4
>
>         Attachments: 6419-1.2.patch, 6419-2.0.patch
>
>
> Setting max_hint_window_in_ms to null in cassandra.yaml makes the StorageProxy mbean inaccessable. 
> Stack trace when trying to view the bean through MX4J:
> {code}
> Exception during http request
> javax.management.RuntimeMBeanException: java.lang.NullPointerException
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:651)
> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
> 	at mx4j.tools.adaptor.http.MBeanCommandProcessor.createMBeanElement(MBeanCommandProcessor.java:119)
> 	at mx4j.tools.adaptor.http.MBeanCommandProcessor.executeRequest(MBeanCommandProcessor.java:56)
> 	at mx4j.tools.adaptor.http.HttpAdaptor$HttpClient.run(HttpAdaptor.java:980)
> Caused by: java.lang.NullPointerException
> 	at org.apache.cassandra.config.DatabaseDescriptor.getMaxHintWindow(DatabaseDescriptor.java:1161)
> 	at org.apache.cassandra.service.StorageProxy.getMaxHintWindow(StorageProxy.java:1506)
> 	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 sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)
> 	at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
> 	at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
> 	at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
> 	at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
> 	... 4 more
> Exception during http request
> {code}



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