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On Fri, Jan 17, 2014 at 11:10 PM, Alan McKinnon <alan.mckinnon@×××××.com>wrote: |
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> On 18/01/2014 09:04, Patrick Lauer wrote: |
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> >> which could link to the |
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> >> > infra page would be good here perhaps, so when an outage occurred ( at |
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> >> > least on the web side ) appropriate links to infra could be given. |
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> > The more sane fix would be low DNS TTL and rotating DNS to a different |
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> > IP if things are down. |
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> > |
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> > |
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> |
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> |
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> That is already in place: |
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> |
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> $ dig overlays.gentoo.org |
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> |
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> ; <<>> DiG 9.9.4 <<>> overlays.gentoo.org |
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> ;; global options: +cmd |
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> ;; Got answer: |
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> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49989 |
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> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 |
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> |
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> ;; OPT PSEUDOSECTION: |
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> ; EDNS: version: 0, flags:; udp: 4000 |
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> ;; QUESTION SECTION: |
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> ;overlays.gentoo.org. IN A |
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> |
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> ;; ANSWER SECTION: |
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> overlays.gentoo.org. 600 IN CNAME spoonbill.gentoo.org. |
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> spoonbill.gentoo.org. 604800 IN A 81.93.255.5 |
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> |
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> |
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> |
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> 5 minutes downtime max if a switch needs to be done. |
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> 5 minutes is perfectly acceptable IMHO |
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> |
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infra TTL standards are 60 minutes for service CNAMEs and 30 minutes for HA |
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CNAMES. The TTL is 600 here (which is 10 minutes, not 5) because I lowered |
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it on 1/14 in anticipation of a machine failover, it was previously 2 hours. |
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-A |
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> |
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> |
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> -- |
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> Alan McKinnon |
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> alan.mckinnon@×××××.com |
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> |
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> |
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> |
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