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https://issues.apache.org/jira/browse/IGNITE-11750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16853100#comment-16853100
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Sergey Chugunov commented on IGNITE-11750:
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[~DmitriyGovorukhin],
Change looks good to me, please proceed with merging.
Thank you for contribution!
> Implement locked pages info dump for long-running B+Tree operations
> -------------------------------------------------------------------
>
> Key: IGNITE-11750
> URL: https://issues.apache.org/jira/browse/IGNITE-11750
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexey Goncharuk
> Assignee: Dmitriy Govorukhin
> Priority: Major
> Fix For: 2.8
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> I've stumbled upon an incident where a batch of Ignite threads were hanging
> on BPlusTree operations trying to acquire read or write lock on pages. From
> the thread dump it is impossible to check if there is an issue with
> {{OffheapReadWriteLock}} or there is a subtle deadlock in the tree.
> I suggest we implement a timeout for page lock acquire and tracking of locked
> pages. This should be relatively easy to implement in {{PageHandler}} (the
> only thing to consider is performance degradation). If a timeout occurs, we
> should print all the locks currently owned by a thread. This way we should be
> able to determine if there is a deadlock in the {{BPlusTree}}.
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