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https://issues.apache.org/jira/browse/IGNITE-8719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16943412#comment-16943412
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Maxim Muzafarov commented on IGNITE-8719:
-----------------------------------------
Folks,
This is a known issue and will be solved as a part of [IEP-28: Index
rebuild|[https://cwiki.apache.org/confluence/display/IGNITE/IEP-28%3A+Cluster+peer-2-peer+balancing]]
index rebuild procedure.
> Index left partially built if a node crashes during index create or rebuild
> ---------------------------------------------------------------------------
>
> Key: IGNITE-8719
> URL: https://issues.apache.org/jira/browse/IGNITE-8719
> Project: Ignite
> Issue Type: Bug
> Reporter: Alexey Goncharuk
> Priority: Critical
> Fix For: 2.8
>
> Attachments: IndexRebuildAfterNodeCrashTest.java,
> IndexRebuildingTest.java
>
>
> Currently, we do not have any state associated with the index tree. Consider
> the following scenario:
> 1) Start node, put some data
> 2) start CREATE INDEX operation
> 3) Wait for a checkpoint and stop node before index create finished
> 4) Restart node
> Since the checkpoint finished, the new index tree will be persisted to the
> disk, but not all data will be present in the index.
> We should somehow store information about initializing index tree and mark it
> valid only after all data is indexed. The state should be persisted as well.
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