Restbase's primary entrypoint is now through the text cluster, and the entrypoint in the parsoidcache cluster for the rest(base)?.wikimedia.org entrypoints shouldn't be necessary anymore. Need to verify lack of trailing dependencies/traffic first.
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Description
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Details
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | • Cmjohnson | T125486 eqiad cache cluster re-arrangements | |||
| Resolved | None | T110472 Decom parsoidcache cluster | |||
| Resolved | BBlack | T110475 Remove restbase from parsoidcache |
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Are things still using the hostnames rest.wikimedia.org and/or restbase.wikimedia.org and/or restbase.eqiad.wikimedia.org, which map to the cache_parsoid cluster rather than through the normal text-cluster restbase entrypoints?
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@BBlack, there are still users for rest.wikimedia.org. I sent a reminder and announced a shut-down date for March. If we set up a redirect (or rewrite) for the domain, we could get rid of the Varnish setup sooner.
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The problem with the redirect is it's complicated, because we still have this conflict between internal and external RB URLs due to the whole Host: header vs /hostname/ mess. It's possible, though.
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Well, the other thing I can do to make this simple is just treat it like the legacy citoid/cxserver entrypoints: if it's one of the legacy restbase hostnames, just set the backend and (pass) all traffic.
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Change 266747 had a related patch set uploaded (by BBlack):
Text VCL: add support for legacy rb passes
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Change 266748 had a related patch set uploaded (by BBlack):
cache_parsoid: remove restbase pass-through
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Change 266749 had a related patch set uploaded (by BBlack):
restbase legacy hostnames -> cache_text cluster