With codfw available (as Tier-2), we need to run through some metrics and calculations and come up with a plan for re-balancing the NA-destined load between ulsfo, codfw, and eqiad. Currently eqiad and ulsfo are mostly in their pre-codfw state on balancing, and codfw only has 5 US States + Mexico.
Description
Description
Details
Details
| Subject | Repo | Branch | Lines +/- | |
|---|---|---|---|---|
| config-geo: ulsfo fallback to codfw before eqiad | operations/dns | master | +50 -50 | |
| config-geo: more of the middle US -> codfw | operations/dns | master | +10 -10 |
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Note: we've done a 24-hour test of all eqiad traffic to codfw already, so there's no real load concerns here, just latency and link-balance optimization.
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Change 251247 had a related patch set uploaded (by BBlack):
config-geo: more of the middle US -> codfw
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Change 251255 had a related patch set uploaded (by BBlack):
config-geo: ulsfo fallback to codfw before eqiad
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Well, there's long term stuff we can do better, but I guess no solid reason to keep this open in the task sense.