Thanks Aaron! That’s what I needed. Bhasker.
> On Oct 18, 2018, at 12:13 PM, Aaron Canary <acan...@oath.com.INVALID> wrote: > > The code parsing and storing the host_file only keeps 1 IpAddr per > hostname. > In order to use proxy.config.hostdb.strict_round_robin, the record must > come through DNS. > > *I am trying to get the same thing working with hostdb since I want to >> avoid DNS round trip because my IPs are fairly fixed.* > > You could try setting a long ttl (like 5 minutes) on your DNS response > record, which will cause HostDB to cache the IP record for that long. DNS > is not repeated until that HostDB record is expired. > > If you don't have control of the DNS ttl, then you can override it with > something like > > # set minimum IP ttl to 10 seconds > proxy.config.hostdb.ttl_mode INT 3 > proxy.config.hostdb.timeout INT 10 > > > https://docs.trafficserver.apache.org/en/8.0.x/admin-guide/files/records.config.en.html?highlight=ttl_mode#proxy.config.hostdb.ttl_mode > > > I hope that helps. > >> On Wed, Oct 17, 2018 at 4:15 PM Dk Jack <dnj0...@gmail.com> wrote: >> >> Hi, >> I am looking at the hostdb configuration and I need some clarification on >> the configuration. In particular I have questions about these two >> configuration parameters. >> >> proxy.config.hostdb.host_file.path >> proxy.config.hostdb.strict_round_robin >> >> I am trying to understand how hostdb round_robin configuration works. In my >> setup, I am trying to reach multiple origin servers. I am using the same >> domain name for all my origin servers. In my remap, I am using this name. >> Since each of my origin servers has a different IP, I was hoping to use the >> strict_round_robing configuration to distribute the load amongst the origin >> servers. >> >> The documentation for the first says that the format for host_file.path is >> similar to 'hosts' file. However as per the answers for this query... >> >> >> https://serverfault.com/questions/429839/assign-multiple-ips-to-1-entry-in-hosts-file >> >> The hosts file doesn't support having multiple IPs for the same domain. >> Does ATS hostdb behave differently i.e. similar to a DNS server. I am >> asking this, because ATS has the hostdb round robin configuration. >> >> BTW, this configuration works with an DNS server with strict round robing >> enabled for my origin server domain. I am trying to get the same thing >> working with hostdb since I want to avoid DNS round trip because my IPs are >> fairly fixed. >> >> Thanks for the help. >> >> Dk. >> > > > -- > Aaron Canary > ATS - Senior Software Engineer
