BBlack has submitted this change and it was merged.
Change subject: cache_upload: send randomized pass traffic directly to t1
backends
......................................................................
cache_upload: send randomized pass traffic directly to t1 backends
backend_random is only used for (and for all) "pass" traffic (both
explicit and hit for pass). For tier-2 frontends, the jump of
this traffic through tier-2 backends before hitting tier-1
backends is pointless and wasteful: sending it directly to tier-1
backends accomplishes the same thing more efficiently and still
makes use of our IPSec protection for x-dc connections. In the
long run we'll go one step further and have all frontends
(regardless of tier) contact the applayer directly for pass
traffic and not need "backend_random" at all, but that's blocked
on further x-dc crypto work.
Bug: T96847
Change-Id: I66813f92fe7763b55b7c05a34238019e77a4e0d0
---
M modules/role/manifests/cache/upload.pp
1 file changed, 2 insertions(+), 1 deletion(-)
Approvals:
BBlack: Looks good to me, approved
jenkins-bot: Verified
diff --git a/modules/role/manifests/cache/upload.pp
b/modules/role/manifests/cache/upload.pp
index df4658d..449c7aa 100644
--- a/modules/role/manifests/cache/upload.pp
+++ b/modules/role/manifests/cache/upload.pp
@@ -115,7 +115,8 @@
'backend_random' => {
'dynamic' => 'yes',
'type' => 'random',
- 'backends' => $site_cluster_nodes,
+ 'backends' => $cluster_nodes['eqiad'],
+ 'dc' => 'eqiad',
'service' => 'varnish-be-rand',
},
},
--
To view, visit https://gerrit.wikimedia.org/r/258464
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: merged
Gerrit-Change-Id: I66813f92fe7763b55b7c05a34238019e77a4e0d0
Gerrit-PatchSet: 3
Gerrit-Project: operations/puppet
Gerrit-Branch: production
Gerrit-Owner: BBlack <bbl...@wikimedia.org>
Gerrit-Reviewer: BBlack <bbl...@wikimedia.org>
Gerrit-Reviewer: jenkins-bot <>
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