Fix 2951 - Sentinel reconnect failure (#2956)

mgravell · web-flow · commit c5f26965cff1 · 2025-09-23T13:25:08.000+01:00
* Fix erroneous deletion from b4aaced#diff-b874d835cf9aa762b0e52adf8c37c2ed87b244f10dd36749ffdf735f0aea0e53L1645 * release notes * Update ReleaseNotes.md
diff --git a/docs/ReleaseNotes.md b/docs/ReleaseNotes.md
@@ -8,7 +8,7 @@ Current package versions:
 
 ## Unreleased
 
-- (none)
+- Fix [#2951](https://github.com/StackExchange/StackExchange.Redis/issues/2951) - sentinel reconnection failure ([#2956 by mgravell](https://github.com/StackExchange/StackExchange.Redis/pull/2956))
 
 ## 2.9.17
 
diff --git a/src/StackExchange.Redis/ConnectionMultiplexer.cs b/src/StackExchange.Redis/ConnectionMultiplexer.cs
@@ -1649,6 +1649,7 @@ internal async Task<bool> ReconfigureAsync(bool first, bool reconfigureAll, ILog
                                 if (primary == preferred || primary.IsReplica)
                                 {
                                     log?.LogInformationClearingAsRedundantPrimary(new(primary));
+                                    primary.ClearUnselectable(UnselectableFlags.RedundantPrimary);
                                 }
                                 else
                                 {

Original file line number	Diff line number	Diff line change
`@@ -1649,6 +1649,7 @@ internal async Task<bool> ReconfigureAsync(bool first, bool reconfigureAll, ILog`
`1649`	`1649`	`if (primary == preferred \|\| primary.IsReplica)`
`1650`	`1650`	`{`
`1651`	`1651`	`log?.LogInformationClearingAsRedundantPrimary(new(primary));`
	`1652`	`+ primary.ClearUnselectable(UnselectableFlags.RedundantPrimary);`
`1652`	`1653`	`}`
`1653`	`1654`	`else`
`1654`	`1655`	`{`