[ 
https://issues.apache.org/jira/browse/IGNITE-11750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alexey Goncharuk updated IGNITE-11750:
--------------------------------------
    Ignite Flags:   (was: Docs Required)

> Implement locked pages info 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
>            Priority: Major
>
> 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}}.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to