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https://issues.apache.org/jira/browse/ASTERIXDB-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15137446#comment-15137446
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Yingyi Bu commented on ASTERIXDB-1289:
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This seems overlapping with what I'm working on, which is to add a function to
generate unique ids for each tuple. The new function is aim to fix
ASTERIXDB-1168.
>> This could be improved by having the NCs obtain a unique pool from the CC to
>> guarantee cluster-wide uniqueness.
The coordination seems not necessary. Once we migrate to the new function
interface (IScalarEvaluator), a function is able to obtain its current
"partition id" (which is cluster-wide unique for all partitions) from the
IHyracksTaskContext.
> Coordinate generated UUIDs within a cluster
> -------------------------------------------
>
> Key: ASTERIXDB-1289
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1289
> Project: Apache AsterixDB
> Issue Type: Bug
> Reporter: Michael Blow
> Original Estimate: 6h
> Remaining Estimate: 6h
>
> UUIDs are generated by Asterix runtime for certain use cases; the uniqueness
> of the UUIDs relies on series of bytes obtained by SecureRandom on each NC.
> This could be improved by having the NCs obtain a unique pool from the CC to
> guarantee cluster-wide uniqueness.
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