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https://issues.apache.org/jira/browse/IGNITE-19276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17775603#comment-17775603
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Roman Puchkovskiy commented on IGNITE-19276:
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The patch looks good to me
> Implement a mechanism to build indices distributively
> -----------------------------------------------------
>
> Key: IGNITE-19276
> URL: https://issues.apache.org/jira/browse/IGNITE-19276
> Project: Ignite
> Issue Type: Improvement
> Reporter: Ivan Bessonov
> Assignee: Kirill Tkalenko
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
> Time Spent: 6h 10m
> Remaining Estimate: 0h
>
> IGNITE-19692 defines a mechanism for executing operations on each partition
> of a table in a resilient way. It should be implemented so that we can build
> an index and switch it to an active state when it's built on all partitions.
> This will allow implement what IGNITE-18539 states:
> {code:java}
> when index is created, we also create a table somewhere that looks similar to
> this:
> indexCompletion.<indexId>.0 = false
> ...
> indexCompletion.<indexId>.N = false {code}
> This part has not been implemented, and it's separated into another issue.
> h3. Things to consider
> * RAFT replica listener node may die after sending last "build index"
> command, thus not updating, so new replica listener must compare states of
> indexes in schema with states of indexes in storage.
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