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https://issues.apache.org/jira/browse/IGNITE-16594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey N. Gura updated IGNITE-16594:
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Description:
Need to create infrastructure to calculate hash code for colocation key.
Apache Ignite uses partitioning by a hash function. The hash function should
have relatively even distribution. Because of it we can’t use primitive and
very fast commutative hash functions (e.g. based on XOR). So the hash function
should respect the order of fields that are included into the affinity key.
was:Need to create infrastructure to calculate hash code for colocation key.
> Colocation key hash code calculation
> ------------------------------------
>
> Key: IGNITE-16594
> URL: https://issues.apache.org/jira/browse/IGNITE-16594
> Project: Ignite
> Issue Type: Improvement
> Reporter: Yury Gerzhedovich
> Priority: Major
> Labels: ignite-3
>
> Need to create infrastructure to calculate hash code for colocation key.
> Apache Ignite uses partitioning by a hash function. The hash function should
> have relatively even distribution. Because of it we can’t use primitive and
> very fast commutative hash functions (e.g. based on XOR). So the hash
> function should respect the order of fields that are included into the
> affinity key.
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