diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index bfc714c5b6..a10943f2d5 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -12703,6 +12703,16 @@ Additionally, when @option{--cache} is used, cached entries that have not been accessed for @var{ttl} and that no longer have a corresponding item in the store, may be deleted. +@item --negative-ttl=@var{ttl} +Similarly produce @code{Cache-Control} HTTP headers to advertise the +time-to-live (TTL) of @emph{negative} lookups---missing store items, for +which the HTTP 404 code is returned. By default, no negative TTL is +advertised. + +This parameter can help adjust server load and substitute latency by +instructing cooperating clients to be more or less patient when a store +item is missing. + @item --cache-bypass-threshold=@var{size} When used in conjunction with @option{--cache}, store items smaller than @var{size} are immediately available, even when they are not yet in |