Aaron Fabbri created HADOOP-15040:
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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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