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https://issues.apache.org/jira/browse/IGNITE-22636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17864937#comment-17864937
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Pavel Pereslegin commented on IGNITE-22636:
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[~korlov], [~mzhuravkov],
please review the proposed changes.
> Catalog compaction. Implement catalog compaction coordinator.
> -------------------------------------------------------------
>
> Key: IGNITE-22636
> URL: https://issues.apache.org/jira/browse/IGNITE-22636
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maksim Zhuravkov
> Assignee: Pavel Pereslegin
> Priority: Major
> Labels: ignite-3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Compaction coordinator initiates the process of catalog compaction:
> 1. Ask each node in logical topology for its minimal required timed (for
> node_i let's call this time Tmin_node_i ).
> 2. Choose minimum required time of Tmin_node_i (let's call it Tmin)
> 3. Select catalog version Cv with catalog timestamp Ct which Ct < Tmin.
> 4. Invoke CatalogManager::compactCatalog with Ct on coordinator.
> If Catalog up to version Cv has tables T1, ... Tn, then:
> Each compaction initiation run should be postponed (step 4 is not performed),
> if at least one node that owns partitions for tables (T1,.., Tn) is missing
> from the current logical topology.
> -If a remote node leaves the cluster, then:-
> -If this node hosts at least one partition, the coordinator should wait until
> this node either enters the cluster and then retry asking for Minimal Time,
> or is removed from all assignments. In the latter case the absence of the
> node may be simply ignored.- (should be done in a separate ticket)
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