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https://issues.apache.org/jira/browse/FALCON-1661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15054900#comment-15054900
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Peeyush Bishnoi commented on FALCON-1661:
-----------------------------------------

On debugging this issue, I found that same "timestamp" is getting set upon 
adding vertex because Falcon instance vertex "timestamp" is based on Oozie 
coordinator actual time.

{code:java}
name=hdfs-replication/2015-12-12T03:20Z    type=PROCESS_INSTANCE   
timestamp=1449890580000
name=hdfs-replication/2015-12-13T03:25Z    type=PROCESS_INSTANCE   
timestamp=1449890880000
name=hdfs-replication/2015-12-13T03:30Z    type=PROCESS_INSTANCE   
timestamp=1449890880000
name=hdfs-replication/2015-12-13T03:35Z    type=PROCESS_INSTANCE   
timestamp=1449890880000
{code}

I think that "timestamp" of each added instance vertex should be unique. 

Thoughts please.

> Similar timestamp is getting added for Falcon instance vertex in GraphDB
> ------------------------------------------------------------------------
>
>                 Key: FALCON-1661
>                 URL: https://issues.apache.org/jira/browse/FALCON-1661
>             Project: Falcon
>          Issue Type: Bug
>          Components: common
>            Reporter: Peeyush Bishnoi
>            Assignee: Peeyush Bishnoi
>             Fix For: 0.9
>
>
> When working on FALCON-1643, I found that same "timestamp" is getting set 
> upon adding Falcon instances vertices in GraphDB. Due to this while trying to 
> sort the vertices on timestamp many instances are not getting sorted properly.



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