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[CAE-1072] Hitless Upgrades (#3447)

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* feat(hitless): Introduce handlers for hitless upgrades

This commit includes all the work on hitless upgrades with the addition
of:

- Pubsub Pool
- Examples
- Refactor of push
- Refactor of pool (using atomics for most things)
- Introducing of hooks in pool


---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Nedyalko Dyakov
2025-09-03 14:49:16 +03:00
committed by GitHub
parent 36f9f58c67
commit cb3af0800e
56 changed files with 8062 additions and 286 deletions
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18
push_notifications.go
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@@ -4,24 +4,6 @@ import (
"github.com/redis/go-redis/v9/push"
)
// Push notification constants for cluster operations
const (
// MOVING indicates a slot is being moved to a different node
PushNotificationMoving = "MOVING"
// MIGRATING indicates a slot is being migrated from this node
PushNotificationMigrating = "MIGRATING"
// MIGRATED indicates a slot has been migrated to this node
PushNotificationMigrated = "MIGRATED"
// FAILING_OVER indicates a failover is starting
PushNotificationFailingOver = "FAILING_OVER"
// FAILED_OVER indicates a failover has completed
PushNotificationFailedOver = "FAILED_OVER"
)
// NewPushNotificationProcessor creates a new push notification processor
// This processor maintains a registry of handlers and processes push notifications
// It is used for RESP3 connections where push notifications are available