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HTTP 503 on zh.wikipedia.org
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Description

Get 503 sometimes when viewing https://zh.wikipedia.org/wiki/%E5%85%83%E6%99%BA%E5%A4%A7%E5%AD%B8

Request from xxx via cp1087 cp1087, Varnish XID 229723203
Error: 503, Backend fetch failed at Thu, 27 Jun 2019 04:41:03 GMT

Event Timeline

We are looking into general connectivity issues at the moment

@BBlack restarted varnish on that host. It should be ok now.

cp1077 is also producing this right now.

We are having general connectivity issues

It seems that only requests coming through Varnish frontends at eqiad are affected.

Sorry for asking. Is this related to T226048?

ema claimed this task.
ema added a subscriber: ema.

This 503 error was due to network issues in eqiad as mentioned by @Marostegui and @Antigng.