Oleg Valuyskiy created IGNITE-28085:
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Summary: Add metric indicating that page eviction has started due
to DataRegion memory pressure
Key: IGNITE-28085
URL: https://issues.apache.org/jira/browse/IGNITE-28085
Project: Ignite
Issue Type: Bug
Reporter: Oleg Valuyskiy
Assignee: Oleg Valuyskiy
h1. Description
In in-memory clusters, when a data region reaches its {*}maxSize{*}, Ignite
starts page-based eviction. At the moment this condition can only be observed
in logs via the following warning:
{code:java}
Page-based evictions started. Consider increasing 'maxSize' on Data Region
configuration{code}
(this message is logged from
{*}IgniteCacheDatabaseSharedManager#warnFirstEvict{*}).
However, there is no metric indicating such conditions, which makes it
difficult to monitor eviction pressure using monitoring systems.
h1. Proposed change
Introduce a new boolean metric that becomes true when page eviction is
triggered due to data region memory pressure.
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