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https://issues.apache.org/jira/browse/IGNITE-16315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Plekhanov reassigned IGNITE-16315:
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Assignee: Aleksey Plekhanov
> Calcite engine. Query start request contains a lot of data
> ----------------------------------------------------------
>
> Key: IGNITE-16315
> URL: https://issues.apache.org/jira/browse/IGNITE-16315
> Project: Ignite
> Issue Type: Improvement
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite2-required, calcite3-required
>
> For simple queries SQL engine most of the time spend in writing/reading query
> start requests, which contains a lot of data.
> {{FragmentDescription}} class stores in communication message
> {{ColocationGroup}} type (\{{target}} field), which contains cache partition
> assignments (for each partition of the cache, 1024 items by default, list of
> node IDs are stored). After it, {{ColocationGroup}} is stored again in
> {{FragmentMapping}} class.
> We need to investigate this behaviour and optimize it if possible.
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