Roman Puchkovskiy created IGNITE-20978:
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Summary: Process ScaleCube messages in a separate thread/pool
Key: IGNITE-20978
URL: https://issues.apache.org/jira/browse/IGNITE-20978
Project: Ignite
Issue Type: Improvement
Reporter: Roman Puchkovskiy
Fix For: 3.0.0-beta2
Currently, all incoming network messages are processed in the same thread. This
means that if there are too many application messages, system messages might be
processed with delays. Also, some tests block message processing for some time,
so during this time no message can be processed, including system messages.
System messages are messages that ScaleCube uses to keep a cluster connected.
If their execution is delayed, the cluster may fall apart.
The requirement to process messages in the same thread stems from the
requirement to linearize network message processing, but system messages (like
ScaleCube messages) probably should not be linearized WRT application messages.
We should move handling of messages required to keep the cluster connected to a
separate thread/pool.
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