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https://issues.apache.org/jira/browse/YARN-2819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhijie Shen updated YARN-2819:
------------------------------
    Priority: Critical  (was: Major)

> NPE in ATS Timeline Domains when upgrading from 2.4 to 2.6
> ----------------------------------------------------------
>
>                 Key: YARN-2819
>                 URL: https://issues.apache.org/jira/browse/YARN-2819
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>    Affects Versions: 2.6.0
>            Reporter: Gopal V
>            Assignee: Zhijie Shen
>            Priority: Critical
>              Labels: Upgrade
>
> {code}
> Caused by: java.lang.NullPointerException
>         at java.lang.String.<init>(String.java:554)
>         at 
> org.apache.hadoop.yarn.server.timeline.LeveldbTimelineStore.put(LeveldbTimelineStore.java:873)
>         at 
> org.apache.hadoop.yarn.server.timeline.LeveldbTimelineStore.put(LeveldbTimelineStore.java:1014)
>         at 
> org.apache.hadoop.yarn.server.timeline.TimelineDataManager.postEntities(TimelineDataManager.java:330)
>         at 
> org.apache.hadoop.yarn.server.timeline.webapp.TimelineWebServices.postEntities(TimelineWebServices.java:260)
> {code}
> triggered by 
> {code}
> entity.getRelatedEntities();
> ...
>             } else {
>               byte[] domainIdBytes = db.get(createDomainIdKey(
>                   relatedEntityId, relatedEntityType, 
> relatedEntityStartTime));
>               // This is the existing entity
>               String domainId = new String(domainIdBytes);
>               if (!domainId.equals(entity.getDomainId())) {
> {code}
> The new String(domainIdBytes); throws an NPE.



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