Pavel Kovalenko created IGNITE-10821:
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Summary: Caching affinity with affinity similarity key is broken
Key: IGNITE-10821
URL: https://issues.apache.org/jira/browse/IGNITE-10821
Project: Ignite
Issue Type: Bug
Components: cache
Affects Versions: 2.8
Reporter: Pavel Kovalenko
Assignee: Pavel Kovalenko
Fix For: 2.8
When some cache groups have the same affinity function, number of partitions,
backups and the same node filter they can use the same affinity distribution
without needs for explicit recalculating. These parameters are called as
"Affinity similarity key".
In case of affinity recalculation caching affinity using this key may speed-up
the process.
However, after https://issues.apache.org/jira/browse/IGNITE-9561 merge this
mechanishm become broken, because parallell execution of affinity recalculation
for the similar affinity groups leads to caching affinity misses.
To fix it we should couple together similar affinity groups and run affinity
recalculation for them in one thread, caching previous results.
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