Decrease default permissible clock skew to 2s (for real) (#1459)

amesgen · web-flow · commit 441931f77631 · 2025-04-09T09:41:03.000Z
See #1278 (comment) Closes #1278
diff --git a/ouroboros-consensus/changelog.d/20250409_105921_alexander.esgen_reduce_clock_skew.md b/ouroboros-consensus/changelog.d/20250409_105921_alexander.esgen_reduce_clock_skew.md
@@ -0,0 +1,3 @@
+### Non-Breaking
+
+- Decrease the maximum permissible clock skew from 5s to 2s, this time for real.
diff --git a/ouroboros-consensus/src/ouroboros-consensus/Ouroboros/Consensus/MiniProtocol/ChainSync/Client/InFutureCheck.hs b/ouroboros-consensus/src/ouroboros-consensus/Ouroboros/Consensus/MiniProtocol/ChainSync/Client/InFutureCheck.hs
@@ -186,9 +186,9 @@ newtype ClockSkew = ClockSkew { unClockSkew :: NominalDiffTime }
 
 -- | Default maximum permissible clock skew
 --
--- See 'ClockSkew' for details. We allow for 5 seconds skew by default.
+-- See 'ClockSkew' for details. We allow for 2 seconds skew by default.
 defaultClockSkew :: ClockSkew
-defaultClockSkew = clockSkewInSeconds 5
+defaultClockSkew = clockSkewInSeconds 2
 
 -- | Specify maximum clock skew in seconds
 clockSkewInSeconds :: Double -> ClockSkew

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+### Non-Breaking`
	`2`	`+`
	`3`	`+- Decrease the maximum permissible clock skew from 5s to 2s, this time for real.`