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ats-tls is performing 3k DNS queries per second on cp5001
Closed, ResolvedPublic

Description

ATS is trying to resolve 127.0.0.2 almost 3k per second on cp5001:

10:42:06.662114 IP cp5001.eqsin.wmnet.51789 > recdns.anycast.wmnet.domain: 30362+ PTR? 2.0.0.127.in-addr.arpa. (40)
10:42:06.662204 IP recdns.anycast.wmnet.domain > cp5001.eqsin.wmnet.51789: 30362 NXDomain 0/1/0 (89)

This is triggered by the remap rule:

map / http://127.0.0.2:3120

Event Timeline

Change 534783 had a related patch set uploaded (by Vgutierrez; owner: Vgutierrez):
[operations/puppet@production] ATS: Disable DNS resolution for TLS instance

https://gerrit.wikimedia.org/r/534783

Change 534783 merged by Vgutierrez:
[operations/puppet@production] ATS: Disable DNS resolution for TLS instance

https://gerrit.wikimedia.org/r/534783

Vgutierrez closed this task as Resolved.Sep 6 2019, 1:27 PM
Vgutierrez triaged this task as Medium priority.