Oleg Valuyskiy created IGNITE-28099:
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Summary: Make page eviction start warning logged per data region
instead of once per node
Key: IGNITE-28099
URL: https://issues.apache.org/jira/browse/IGNITE-28099
Project: Ignite
Issue Type: Task
Reporter: Oleg Valuyskiy
Assignee: Oleg Valuyskiy
Currently the warning about page-based eviction start is logged only once per
node, even if eviction starts in multiple data regions.
The message is printed from IgniteCacheDatabaseSharedManager#warnFirstEvict:
Page-based evictions started. Consider increasing 'maxSize' on Data Region
configuration: <region-name>
Although the log message contains the data region name, the internal flag
firstEvictWarn is global for the whole IgniteCacheDatabaseSharedManager. As a
result, the warning is printed only for the first data region where eviction
starts and is suppressed for all subsequent regions.
This behavior can be misleading in configurations with multiple data regions.
If eviction starts in another region later, there will be no corresponding
warning in the logs.
Proposed change
Change the eviction warning logic so that the message is logged once per data
region, instead of once per node.
Expected behavior:
The warning is printed when eviction starts in a data region for the first time.
If eviction later starts in another data region, the warning is printed again
for that region.
The warning should still be printed only once per region to avoid log flooding.
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