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https://issues.apache.org/jira/browse/HDDS-3707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123955#comment-17123955
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Arpit Agarwal commented on HDDS-3707:
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Hi [~maobaolong] UUID collision odds are astronomical. We don't need to worry
about it. Here is a similar discussion in context of HDFS.
https://issues.apache.org/jira/browse/HDFS-2832?focusedCommentId=13814025&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13814025
https://issues.apache.org/jira/browse/HDFS-2832?focusedCommentId=13816394&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13816394
> UUID can be non unique for a huge samples
> -----------------------------------------
>
> Key: HDDS-3707
> URL: https://issues.apache.org/jira/browse/HDDS-3707
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: om, Ozone Datanode, SCM
> Affects Versions: 0.7.0
> Reporter: maobaolong
> Priority: Minor
>
> Now, we have used UUID as id for many places, for example, DataNodeId,
> pipelineId. I believe that it should be pretty less chance to met collision,
> but, if met the collision, we are in trouble.
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