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https://issues.apache.org/jira/browse/YARN-7396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219770#comment-16219770
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Jonathan Hung commented on YARN-7396:
-------------------------------------
001: simple patch which does dirsHandler initialization before NMContext
initialization.
[~leftnoteasy]/[~sunilg], could you take a look at this? Thanks!
> NPE when accessing container logs due to null dirsHandler
> ---------------------------------------------------------
>
> Key: YARN-7396
> URL: https://issues.apache.org/jira/browse/YARN-7396
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jonathan Hung
> Assignee: Jonathan Hung
> Attachments: YARN-7396.001.patch
>
>
> {noformat}java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.nodemanager.webapp.NMWebAppFilter.containerLogPageRedirectPath(NMWebAppFilter.java:96)
> at
> org.apache.hadoop.yarn.server.nodemanager.webapp.NMWebAppFilter.doFilter(NMWebAppFilter.java:62)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:829){noformat}
> In YARN-6620 the NMContext creation in {{NodeManager#serviceInit}} was moved.
> It's now created before the dirsHandler is initialized. So when
> {{nmContext.getLocalDirsHandler}} is called, it's null.
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