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https://issues.apache.org/jira/browse/YARN-6047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056261#comment-16056261
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Haibo Chen commented on YARN-6047:
----------------------------------

I think we should explicitly call out the data loss issue when HBase goes down, 
hence the following change
{code}
You should be able to start generating data. When enabled, all YARN-generic 
events are
 published as well as YARN system metrics such as CPU and memory. Furthermore, 
some applications
 including Distributed Shell and MapReduce can write per-framework data to YARN 
Timeline Service
-v.2.
+v.2. Note that there is currently no fault tolerance against HBase backend 
unavailability, so
+data can be lost in cases where HBase goes offline.
{code}

> Documentation updates for TimelineService v2
> --------------------------------------------
>
>                 Key: YARN-6047
>                 URL: https://issues.apache.org/jira/browse/YARN-6047
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: documentation, timelineserver
>            Reporter: Varun Saxena
>            Assignee: Rohith Sharma K S
>              Labels: yarn-5355-merge-blocker
>         Attachments: YARN-6047-YARN-5355.001.patch, 
> YARN-6047-YARN-5355.002.patch
>
>




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