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| author |  Chris O'Haver <cohaver@infoblox.com>
| 2018-10-22 16:59:12 -0400 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2018-10-22 16:59:12 -0400 |
| commit | 96529b2c501b47a71a0f6eae5a04ebe86ba1ab1d (patch) | |
| tree | 053f7e923df69c43c531dd3c3977eb743a560daf /plugin | |
| parent | 85e5ab77d65d224e2c2e5a31e28f17595fea6848 (diff) | |
| download | coredns-96529b2c501b47a71a0f6eae5a04ebe86ba1ab1d.tar.gz coredns-96529b2c501b47a71a0f6eae5a04ebe86ba1ab1d.tar.zst coredns-96529b2c501b47a71a0f6eae5a04ebe86ba1ab1d.zip | |
make default min ttl 5 (#2227)
Diffstat (limited to 'plugin')
| -rw-r--r-- | plugin/cache/README.md | 4 | ||||
| -rw-r--r-- | plugin/cache/cache.go | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/plugin/cache/README.md b/plugin/cache/README.md index de0e5da4b..fcff72c58 100644 --- a/plugin/cache/README.md +++ b/plugin/cache/README.md @@ -40,10 +40,10 @@ cache [TTL] [ZONES...] { * **TTL** and **ZONES** as above. * `success`, override the settings for caching successful responses. **CAPACITY** indicates the maximum number of packets we cache before we start evicting (*randomly*). **TTL** overrides the cache maximum TTL. - **MINTTL** overrides the cache minimum TTL (default 0), which can be useful to limit queries to the backend. + **MINTTL** overrides the cache minimum TTL (default 5), which can be useful to limit queries to the backend. * `denial`, override the settings for caching denial of existence responses. **CAPACITY** indicates the maximum number of packets we cache before we start evicting (LRU). **TTL** overrides the cache maximum TTL. - **MINTTL** overrides the cache minimum TTL (default 0), which can be useful to limit queries to the backend. + **MINTTL** overrides the cache minimum TTL (default 5), which can be useful to limit queries to the backend. There is a third category (`error`) but those responses are never cached. * `prefetch` will prefetch popular items when they are about to be expunged from the cache. Popular means **AMOUNT** queries have been seen with no gaps of **DURATION** or more between them. diff --git a/plugin/cache/cache.go b/plugin/cache/cache.go index 4b6cb4101..9ff43dac2 100644 --- a/plugin/cache/cache.go +++ b/plugin/cache/cache.go @@ -239,9 +239,9 @@ func (w *ResponseWriter) Write(buf []byte) (int, error) { const ( maxTTL = dnsutil.MaximumDefaulTTL - minTTL = 0 + minTTL = dnsutil.MinimalDefaultTTL maxNTTL = dnsutil.MaximumDefaulTTL / 2 - minNTTL = 0 + minNTTL = dnsutil.MinimalDefaultTTL defaultCap = 10000 // default capacity of the cache. |