[jira] [Updated] (IGNITE-12550) Add page read latency histogram per data region

["Aleksey Plekhanov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-12550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aleksey Plekhanov updated IGNITE-12550:
---------------------------------------
    Fix Version/s:     (was: 2.9)
                   2.10

> Add page read latency histogram per data region
> -----------------------------------------------
>
>                 Key: IGNITE-12550
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12550
>             Project: Ignite
>          Issue Type: Improvement
>          Components: persistence
>            Reporter: Alexey Goncharuk
>            Assignee: Alexey Goncharuk
>            Priority: Major
>             Fix For: 2.10
>
>
> During an incident I experienced a large checkpoint mark duration. It was impossible to determine whether this was caused by a stalled disk because of large number of long page reads or by some other reasons.
> Having a metric showing the page read latency histogram would help in such cases.
> We already have a {{pagesRead}} metric, just need to measure the read timings.



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