Subject: [bug#47897] [PATCH 2/2] substitutes: Reduce negative TTLs.

From: Ludovic Courtès <[email-masked]>
Date: Tue, 11 May 2021 15:08:42 +0200

* guix/substitutes.scm (%narinfo-negative-ttl): Change to 15mn.
(%narinfo-transient-error-ttl): Halve.
---
 guix/substitutes.scm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/guix/substitutes.scm b/guix/substitutes.scm
index 08f8c24efd..c1b036e42c 100644
--- a/guix/substitutes.scm
+++ b/guix/substitutes.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <[email-masked]>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <[email-masked]>
 ;;; Copyright © 2014 Nikita Karetnikov <[email-masked]>
 ;;; Copyright © 2018 Kyle Meyer <[email-masked]>
 ;;; Copyright © 2020 Christopher Baines <[email-masked]>
@@ -72,11 +72,11 @@
 
 (define %narinfo-negative-ttl
   ;; Likewise, but for negative lookups---i.e., cached lookup failures (404).
-  (* 1 3600))
+  (* 15 60))
 
 (define %narinfo-transient-error-ttl
   ;; Likewise, but for transient errors such as 504 ("Gateway timeout").
-  (* 10 60))
+  (* 5 60))
 
 (define %narinfo-cache-directory
   ;; A local cache of narinfos, to avoid going to the network.  Most of the
-- 
2.31.1