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| author |  Miek Gieben <miek@miek.nl>
| 2017-09-24 20:05:36 +0100 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2017-09-24 20:05:36 +0100 |
| commit | 2a32cd415911bea79784bee3387103bd9576f438 (patch) | |
| tree | 899ec04050ce5dc7138341a795e83651b5e01999 /plugin/file/wildcard_test.go | |
| parent | 148a99442dcd00fcda53858ada95f8148a9edd14 (diff) | |
| download | coredns-2a32cd415911bea79784bee3387103bd9576f438.tar.gz coredns-2a32cd415911bea79784bee3387103bd9576f438.tar.zst coredns-2a32cd415911bea79784bee3387103bd9576f438.zip | |
plugin/proxy: decrease health timeouts (#1107)
Turn down the timeouts and numbers a bit:
FailTimeout 10s -> 5s
Future 60s -> 12s
TryDuration 60s -> 16s
The timeout for decrementing the fails in a host: 10s -> 2s
And the biggest change: don't set fails when the error is Timeout(),
meaning we loop for a bit and may try the same server again, but we
don't mark our upstream as bad, see comments in proxy.go. Testing this
with "ANY isc.org" and "MX miek.nl" we see:
~~~
::1 - [24/Sep/2017:08:06:17 +0100] "ANY IN isc.org. udp 37 false 4096" SERVFAIL qr,rd 37 10.001621221s
24/Sep/2017:08:06:17 +0100 [ERROR 0 isc.org. ANY] unreachable backend: read udp 192.168.1.148:37420->8.8.8.8:53: i/o timeout
::1 - [24/Sep/2017:08:06:17 +0100] "MX IN miek.nl. udp 37 false 4096" NOERROR qr,rd,ra,ad 170 35.957284ms
127.0.0.1 - [24/Sep/2017:08:06:18 +0100] "ANY IN isc.org. udp 37 false 4096" SERVFAIL qr,rd 37 10.002051726s
24/Sep/2017:08:06:18 +0100 [ERROR 0 isc.org. ANY] unreachable backend: read udp 192.168.1.148:54901->8.8.8.8:53: i/o timeout
::1 - [24/Sep/2017:08:06:19 +0100] "MX IN miek.nl. udp 37 false 4096" NOERROR qr,rd,ra,ad 170 56.848416ms
127.0.0.1 - [24/Sep/2017:08:06:21 +0100] "MX IN miek.nl. udp 37 false 4096" NOERROR qr,rd,ra,ad 170 48.118349ms
::1 - [24/Sep/2017:08:06:21 +0100] "MX IN miek.nl. udp 37 false 4096" NOERROR qr,rd,ra,ad 170 1.055172915s
~~~
So the ANY isc.org queries show up twice, because we retry internally -
this is I think WAI.
The `miek.nl MX` queries are just processed normally as no backend is
marked as unreachable.
May fix #1035 #486
Diffstat (limited to 'plugin/file/wildcard_test.go')
0 files changed, 0 insertions, 0 deletions