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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

A2093064 created this task.Thu, Jun 27, 4:43 AM
Restricted Application added subscribers: Cosine02, Aklapper. · View Herald TranscriptThu, Jun 27, 4:43 AM

We are looking into general connectivity issues at the moment

Stryn added a subscriber: Stryn.Thu, Jun 27, 4:49 AM

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

Pruem added a subscriber: Pruem.Thu, Jun 27, 4:54 AM

cp1077 is also producing this right now.

Risker added a subscriber: Risker.Thu, Jun 27, 4:54 AM

We are having general connectivity issues

Pruem removed a subscriber: Pruem.Thu, Jun 27, 4:59 AM

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

Elitre added a subscriber: Elitre.Thu, Jun 27, 10:34 AM

Sorry for asking. Is this related to T226048?

ema closed this task as Resolved.Thu, Jun 27, 10:57 AM
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.