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Beta cluster RESTbase not getting new revisions(?), so "Error loading data from server: HTTP 504" in VE
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Description

I'm semi-erratically getting a HTTP 504 error, on the beta cluster, when opening a page to edit in VE.
E.g. this random page: https://en.wikipedia.beta.wmflabs.org/wiki/UserMergelyppkq?veaction=edit


If I don't get it the first time, then saving a new revision, and trying to edit again, seems to trigger it.

Event Timeline

Quiddity created this task.Sep 19 2016, 4:50 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 19 2016, 4:50 PM
Jdforrester-WMF renamed this task from Beta cluster "Error loading data from server: HTTP 504" in VE to Beta cluster RESTbase not getting new revisions(?), so "Error loading data from server: HTTP 504" in VE.Sep 19 2016, 4:51 PM
Jdforrester-WMF triaged this task as High priority.
Jdforrester-WMF added a subscriber: Ryasmeen.
mobrovac claimed this task.Sep 19 2016, 5:06 PM
mobrovac added a project: User-mobrovac.
mobrovac added a subscriber: mobrovac.
Error: getaddrinfo ENOTFOUND deployment-mediawiki02.deployment-prep.eqiad.wmflabs

Duh, the mediawiki hosts have been changed, fixing...

I just ran sudo service restbase restart on the deployment-restbase[01] instances which seems to have done the trick. https://gerrit.wikimedia.org/r/#/c/310796/ should've triggered this through puppet...

Seems it didn't because modules/restbase/manifests/init.pp specifies auto_refresh => false

mobrovac closed this task as Resolved.Sep 19 2016, 5:25 PM

Seems it didn't because modules/restbase/manifests/init.pp specifies auto_refresh => false

Yup. We don't want Puppet to randomly restart RB. Working just fine now, resolving. Thnx @AlexMonk-WMF for the restart!