Hitless upgrades#3021

Draft

nkaradzhov wants to merge 10 commits intoredis:masterfrom

nkaradzhov:hitless-upgrades

Commits on Aug 11, 2025

feat(errors): Add specialized timeout error types for maintenance scenarios
nkaradzhov
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feat(linked-list): Add EmptyAwareSinglyLinkedList and enhance DoublyLinkedList functionality
nkaradzhov
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refactor(commands-queue): Improve push notification handling
nkaradzhov
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feat(commands-queue): Add method to wait for in-flight commands to complete
nkaradzhov
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feat(commands-queue): Introduce maintenance mode support for commands-queuefd
nkaradzhov
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refactor(client): Simplify socket initialization and improve readiness handling
nkaradzhov
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refactor(socket): Add maintenance mode support and dynamic timeout handling
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feat(client): Add Redis Enterprise maintenance configuration options
nkaradzhov
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feat(client): Add maintenance pause mechanism for socket operations
nkaradzhov
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feat(client): Add Redis Enterprise maintenance handling capabilities
nkaradzhov
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