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https://issues.apache.org/jira/browse/IGNITE-12550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Goncharuk updated IGNITE-12550:
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Description:
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.
was:
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.
> 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: 2.9
>
>
> 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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