Sangjin Lee commented on YARN-3908:

bq. 1. The events have been written into metrics column family.

Correct, that was another bug, and it's been corrected with the patch. Have you 
tried the patch to see if the problem has been fixed?

bq. 2. The entity is not accessible immediately after a single put operation.

Could you kindly elaborate bit more on under what condition this happens? IIUC, 
the current mechanism is using the buffered mutator 
 and the writes are flushed to the HBase table in a batch asynchronous manner. 
Perhaps you're encountering that behavior?

> Bugs in HBaseTimelineWriterImpl
> -------------------------------
>                 Key: YARN-3908
>                 URL: https://issues.apache.org/jira/browse/YARN-3908
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Zhijie Shen
>            Assignee: Vrushali C
>         Attachments: YARN-3908-YARN-2928.001.patch, 
> YARN-3908-YARN-2928.002.patch, YARN-3908-YARN-2928.003.patch, 
> YARN-3908-YARN-2928.004.patch, YARN-3908-YARN-2928.004.patch, 
> YARN-3908-YARN-2928.005.patch
> 1. In HBaseTimelineWriterImpl, the info column family contains the basic 
> fields of a timeline entity plus events. However, entity#info map is not 
> stored at all.
> 2 event#timestamp is also not persisted.

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