Denis Magda created IGNITE-1678:
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Summary: IgniteAtomicSequence: make additional reservations in
advance
Key: IGNITE-1678
URL: https://issues.apache.org/jira/browse/IGNITE-1678
Project: Ignite
Issue Type: Improvement
Components: data structures
Affects Versions: ignite-1.4
Reporter: Denis Magda
In current implementation a new reservation is made when the current local
sequence boundary is exceeded.
In cases when there are many nodes that use the same atomic sequence there can
be a situation when all the nodes start doing a new reservation at the same
time. This can lead to performance drops.
As a performance optimization it makes sense to start reserving new sequence
slot in advance (in background), like when around 80% of current reservation
has already been used. Probably we should add a special parameter to
{{AtomicConfiguration}} that will manage such behavior.
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