Comments (2)
kuujo
commented on May 25, 2024
State machines can now wait for session events to be received by clients, but some work needs to be done to allow blocking to ensure all session events can be sent/received in sequence.
from copycat.
kuujo
commented on May 25, 2024
This issue is now fixed. Session events are published to the client based on the consistency level of the command that triggered the event. In order to support truly linearizable session events, the algorithm had to be refactored to allow the leader to proxy events through the server to which the client is connected and ensure that session events are tracked/acked based on the respective client's sequence numbers rather than the server's commit indexes.
from copycat.
Related Issues (20)
- Support concurrent access of logs
- Remove indexing in logs
- Relax threading model in transports
- Remove serialization
- Create state machine test framework
- Support relaxed client consistency models
- Use unique node identifiers HOT 2
- Catch up joining nodes in the PASSIVE state before promotion to ACTIVE HOT 1
- question for performance HOT 4
- Join request from leader is proxied back to itself
- Leader election sends LEADER state change event twice
- New leader triggers onLeave event
- Use trace log level for requests/responses
- Don't submit unnecessary keep-alives
- Nodes can't communicate over the internet HOT 1
- copycat 1.2.4 server fails build test HOT 2
- question about pessimistic case HOT 1
- Allow KeepAliveRequest to manage multiple sessions HOT 2
- Under certain disconnection circumstances, the copycat-client-io thread takes 100% CPU HOT 3
- ServerCommit GC Warning
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