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https://issues.apache.org/jira/browse/HDDS-3707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123943#comment-17123943
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Marton Elek commented on HDDS-3707:
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Thanks to open this [~maobaolong]. I am trying to understand the risk here, but
to have the same datanodeId and pipelineId seems to have only a very low
chance. I expect 10-90 thousands of datanodeId/containerId, I think the chance
for the collision is very-very low.
What is your suggestion, what should be used instead of UUID?
> 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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