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https://issues.apache.org/jira/browse/IGNITE-11541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16800589#comment-16800589
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Vladimir Ozerov commented on IGNITE-11541:
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[~agoncharuk], patch looks good to me.
> Dynamic columns and indexes can be lost after the cluster restart
> -----------------------------------------------------------------
>
> Key: IGNITE-11541
> URL: https://issues.apache.org/jira/browse/IGNITE-11541
> Project: Ignite
> Issue Type: Bug
> Components: cache, persistence, sql
> Affects Versions: 2.7
> Reporter: Roman Guseinov
> Assignee: Alexey Goncharuk
> Priority: Critical
> Fix For: 2.8
>
> Attachments: StaticCacheAndDdlReproducer.java
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The case is the following:
> # Run a server node (persistence enabled. static cache configuration with
> queryEnities).
> # Add/drop column/index via DDL.
> # Restart the node with the same configuration.
> # The changes are lost...
> It seems the issue is related to merging cache metadata.
> There are some workarounds:
> # Remove/comment cache configuration. After the restart, the metadata will be
> loaded from the persistence store. This will work for a rolling restart.
> # Make the same changes in the configuration (update queryEntity). It
> requires the whole cluster restart.
> Reproducer is attached.
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