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https://issues.apache.org/jira/browse/TEZ-2179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353454#comment-14353454
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Zhijie Shen commented on TEZ-2179:
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bq. With ATS v2, will the related entities be useful for linking entities and
should we retain their use?
Yes, in v2, we will still preserve the entity relationship feature and make it
a bit more advanced by elaborating the inbound/outbound connections. Nowadays,
it's not clarified, but we put entity A with relationship to entity B while we
search for entity B whose has entity A as the related entity, but cannot vice
versa.
bq. it seems that we cannot make use of them in a secure environment.
I think in this particular case, the newly created entity is trying to relates
to an entity in the other domain where user doesn't have the access to it, such
that the entity is created but the relationship is stopped.
> Timeline relatedentries missing cause exaggerated warning
> ---------------------------------------------------------
>
> Key: TEZ-2179
> URL: https://issues.apache.org/jira/browse/TEZ-2179
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.6.1
> Reporter: Chang Li
>
> Have run into an issue where TimelineClient has posted entities in the
> timeline event posted. The related entry is not found (i believe because I
> didn't have generic history turned on) and Yarn timeline server assumes the
> missing event belongs to the default domain. Regular users don't have
> permissions to the default domain and so the update to the related entity
> fails. The posting of the event succeeds, just that the cross-link related
> entity is not updated. However in the log I see the warning which is going to
> scare users
> {code}
> 2015-02-24 20:01:24,526 WARN [HistoryEventHandlingThread]
> ats.ATSHistoryLoggingService: Could not post history event to ATS,
> atsPutError=6, entityId=tez_application_1423769157162_273679,
> eventType=APP_LAUNCHED
> 2015-02-24 20:01:24,526 WARN [HistoryEventHandlingThread]
> ats.ATSHistoryLoggingService: Could not post history event to ATS,
> atsPutError=6, entityId=tez_appattempt_1423769157162_273679_000001,
> eventType=AM_LAUNCHED
> {code}
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