From 5e6039a48b136d34d21b34237617d77580566e51 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Mon, 4 May 2015 15:38:30 +0200
Subject: [PATCH] substitute: Increase TTL from 24h to 36h.

* guix/scripts/substitute.scm (%narinfo-ttl): Increase to 36h.
---
 guix/scripts/substitute.scm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index b9983c5b9c5..ae97f74d264 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -84,8 +84,10 @@ (define %allow-unauthenticated-substitutes?
 
 (define %narinfo-ttl
   ;; Number of seconds during which cached narinfo lookups are considered
-  ;; valid.
-  (* 24 3600))
+  ;; valid.  This is a reasonable default value (corresponds to the TTL for
+  ;; nginx's .nar cache on hydra.gnu.org) but we'd rather want publishers to
+  ;; state what their TTL is in /nix-cache-info.  (XXX)
+  (* 36 3600))
 
 (define %narinfo-negative-ttl
   ;; Likewise, but for negative lookups---i.e., cached lookup failures.
-- 
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