[
https://issues.apache.org/jira/browse/HADOOP-19231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17874585#comment-17874585
]
ASF GitHub Bot commented on HADOOP-19231:
-----------------------------------------
ayushtkn commented on PR #6953:
URL: https://github.com/apache/hadoop/pull/6953#issuecomment-2294993324
@steveloughran / @pjfanning
This could be the reason for failing HBase Tests
https://ci-hadoop.apache.org/view/Hadoop/job/hadoop-qbt-trunk-java8-linux-x86_64/1671/
The exception here:
https://ci-hadoop.apache.org/view/Hadoop/job/hadoop-qbt-trunk-java8-linux-x86_64/1671/testReport/junit/org.apache.hadoop.yarn.server.timelineservice.storage/TestTimelineWriterHBaseDown/testTimelineWriterHBaseDown/
is bit misleading, since it looses the actual exception, because we of a NPE
during cleanup, but if you comment that NPE line & related ones, the exception
seems to be this:
```
java.lang.NoClassDefFoundError: org/apache/hadoop/util/JacksonUtil
at
org.apache.hadoop.yarn.util.timeline.TimelineUtils.<clinit>(TimelineUtils.java:57)
at
org.apache.hadoop.yarn.server.timelineservice.TimelineContext.<init>(TimelineContext.java:107)
at
org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderContext.<init>(TimelineReaderContext.java:40)
at
org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderContext.<init>(TimelineReaderContext.java:48)
at
org.apache.hadoop.yarn.server.timelineservice.storage.HBaseStorageMonitor.initialize(HBaseStorageMonitor.java:70)
at
org.apache.hadoop.yarn.server.timelineservice.storage.HBaseStorageMonitor.<init>(HBaseStorageMonitor.java:48)
at
org.apache.hadoop.yarn.server.timelineservice.storage.HBaseTimelineWriterImpl.serviceInit(HBaseTimelineWriterImpl.java:155)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
at
org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage.loadData(TestTimelineReaderWebServicesHBaseStorage.java:357)
at
org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage.setupBeforeClass(TestTimelineReaderWebServicesHBaseStorage.java:81)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.RunBefores.invokeMethod(RunBefores.java:33)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at
com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.util.JacksonUtil
at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
... 29 more
```
> add JacksonUtil to centralise some code
> ---------------------------------------
>
> Key: HADOOP-19231
> URL: https://issues.apache.org/jira/browse/HADOOP-19231
> Project: Hadoop Common
> Issue Type: Task
> Affects Versions: 3.4.0, 3.4.1
> Reporter: PJ Fanning
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0
>
>
> To future proof Hadoop against Jackson changes, it makes sense to not just
> create ObjectMappers and JsonFactories in many different places in the Hadoop
> code.
> One of the main drivers of this is
> https://www.javadoc.io/doc/com.fasterxml.jackson.core/jackson-core/latest/com/fasterxml/jackson/core/StreamReadConstraints.html
>
> Jackson 3 (not yet scheduled for release) has some fairly big API and
> behaviour changes too.
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