[jira] [Created] (HADOOP-15040) AWS SDK NPE bug spams logs w/ Yarn Log Aggregation

["Aaron Fabbri (JIRA)" <ji...@apache.org>]

Aaron Fabbri created HADOOP-15040:
-------------------------------------

             Summary: AWS SDK NPE bug spams logs w/ Yarn Log Aggregation
                 Key: HADOOP-15040
                 URL: https://issues.apache.org/jira/browse/HADOOP-15040
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs/s3
    Affects Versions: 3.0.0-beta1
            Reporter: Aaron Fabbri
            Assignee: Aaron Fabbri


My colleagues working with Yarn log aggregation found that they were getting this message spammed in their logs when they used an s3a:// URI for logs (yarn.nodemanager.remote-app-log-dir):

{noformat}
getting attribute Region of com.amazonaws.management:type=AwsSdkMetrics threw an exception
javax.management.RuntimeMBeanException: java.lang.NullPointerException
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
	at 
<snip>
Caused by: java.lang.NullPointerException
	at com.amazonaws.metrics.AwsSdkMetrics.getRegion(AwsSdkMetrics.java:729)
	at com.amazonaws.metrics.MetricAdmin.getRegion(MetricAdmin.java:67)
	at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
	at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
{noformat}

This happens even though the aws sdk cloudwatch metrics reporting was disabled (default), which is a bug. 

I filed a [github issue|https://github.com/aws/aws-sdk-java/issues/1375|] and it looks like a fix should be coming around SDK release 1.11.229 or so.  



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