*   << Request  >> 238395449 
-   Begin          req 233071209 rxreq
-   Timestamp      Start: 1487695086.909796 0.000000 0.000000
-   Timestamp      Req: 1487695086.909796 0.000000 0.000000
-   ReqStart       10.20.0.169 23349
-   ReqMethod      GET
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-   ReqProtocol    HTTP/1.1
-   ReqHeader      X-Client-IP: 35.157.64.XXX
-   ReqHeader      X-Forwarded-Proto: https
-   ReqHeader      X-Connection-Properties: H2=0; SSR=0; SSL=TLSv1.2; C=ECDHE-ECDSA-AES256-GCM-SHA384; EC=prime256v1;
-   ReqHeader      Accept: */*
-   ReqHeader      User-Agent: python-requests/2.13.0
-   ReqHeader      Host: upload.wikimedia.org
-   ReqHeader      via-nginx: 1
-   ReqHeader      X-WMF-NOCOOKIES: 1
-   ReqHeader      Accept-Encoding: gzip
-   ReqHeader      X-Varnish: 824602911
-   ReqHeader      X-Forwarded-For: 35.157.64.XXX, 10.20.0.171, 10.20.0.171
-   ReqHeader      X-DCPath: esams
-   ReqHeader      X-CDIS: miss
-   ReqHeader      X-Varnish: 206888355
-   ReqUnset       X-Forwarded-For: 35.157.64.XXX, 10.20.0.171, 10.20.0.171
-   ReqHeader      X-Forwarded-For: 35.157.64.XXX, 10.20.0.171, 10.20.0.171, 10.20.0.169
-   VCL_call       RECV
-   VCL_acl        MATCH wikimedia_trust "10.0.0.0"/8
-   ReqUnset       X-CDIS: miss
-   ReqUnset       X-DCPath: esams
-   ReqHeader      X-DCPath: esams, eqiad
-   VCL_return     hash
-   VCL_call       HASH
-   VCL_return     lookup
-   VCL_call       MISS
-   ReqHeader      X-CDIS: miss
-   VCL_return     fetch
-   Link           bereq 238395450 fetch
-   Timestamp      Fetch: 1487695086.958889 0.049093 0.049093
-   RespProtocol   HTTP/1.1
-   RespStatus     503
-   RespReason     Backend fetch failed
-   RespHeader     Date: Tue, 21 Feb 2017 16:38:06 GMT
-   RespHeader     Server: Varnish
-   RespHeader     X-CDIS: int
-   RespHeader     Content-Type: text/html; charset=utf-8
-   RespHeader     X-Varnish: 238395449
-   RespHeader     Age: 0
-   RespHeader     Via: 1.1 varnish-v4
-   VCL_call       DELIVER
-   ReqUnset       X-CDIS: miss
-   ReqHeader      X-CDIS: int
-   RespUnset      X-CDIS: int
-   RespHeader     X-Cache-Int: cp1074 int
-   VCL_return     deliver
-   Timestamp      Process: 1487695086.958950 0.049154 0.000061
-   RespHeader     Content-Length: 1571
-   Debug          "RES_MODE 2"
-   RespHeader     Connection: keep-alive
-   Timestamp      Resp: 1487695086.958976 0.049180 0.000026
-   ReqAcct        583 0 583 253 1571 1824
-   End            
**  << BeReq    >> 238395450 
--  Begin          bereq 238395449 fetch
--  Timestamp      Start: 1487695086.909841 0.000000 0.000000
--  BereqMethod    GET
--  BereqURL       /wikipedia/commons/thumb/7/75/Sansan_-_Entr%C3%A9e.jpeg%0ASansan_-_%C3%A9glise_1.jpeg/130px-Sansan_-_Entr%C3%A9e.jpeg%0ASansan_-_%C3%A9glise_1.jpeg
--  BereqProtocol  HTTP/1.1
--  BereqHeader    X-Client-IP: 35.157.64.XXX
--  BereqHeader    X-Forwarded-Proto: https
--  BereqHeader    X-Connection-Properties: H2=0; SSR=0; SSL=TLSv1.2; C=ECDHE-ECDSA-AES256-GCM-SHA384; EC=prime256v1;
--  BereqHeader    Accept: */*
--  BereqHeader    User-Agent: python-requests/2.13.0
--  BereqHeader    Host: upload.wikimedia.org
--  BereqHeader    via-nginx: 1
--  BereqHeader    X-WMF-NOCOOKIES: 1
--  BereqHeader    Accept-Encoding: gzip
--  BereqHeader    X-Varnish: 824602911
--  BereqHeader    X-Varnish: 206888355
--  BereqHeader    X-Forwarded-For: 35.157.64.XXX, 10.20.0.171, 10.20.0.171, 10.20.0.169
--  BereqHeader    X-DCPath: esams, eqiad
--  BereqHeader    X-CDIS: miss
--  BereqHeader    X-Varnish: 238395450
--  VCL_call       BACKEND_FETCH
--  VCL_return     fetch
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--  BackendStart   10.2.2.27 80
--  Timestamp      Bereq: 1487695086.909876 0.000036 0.000036
--  Timestamp      Beresp: 1487695086.958758 0.048918 0.048882
--  BerespProtocol HTTP/1.1
--  BerespStatus   404
--  BerespReason   Not Found
--  BerespHeader   X-Powered-By: HHVM/3.12.11
--  BerespHeader   Transfer-Encoding: chunked
--  BerespHeader   Server: mw1295.eqiad.wmnet
--  BerespHeader   Connection: close
--  BerespHeader   Cache-Control: s-maxage=2678400, max-age=2678400
--  BerespHeader   Date: Tue, 21 Feb 2017 16:38:06 GMT
--  BerespHeader   Backend-Timing: D=1570 t=1487695086953810
--  BerespHeader   Content-Length: 3308
--  BerespHeader   Content-Type: text/html; charset=utf-8
--  BerespHeader   X-Trans-Id: txb96023e59d6f4c889d4d6-0058ac6cee
--  BackendClose   233 root:4e80d92a-4143-404e-ac61-a865b214ae16.be_ms_fe_thumbs_svc_eqiad_wmnet
--  Error          Body cannot be fetched
--  Timestamp      Error: 1487695086.958806 0.048965 0.000048
--  BerespProtocol HTTP/1.1
--  BerespStatus   503
--  BerespReason   Service Unavailable
--  BerespReason   Backend fetch failed
--  BerespHeader   Date: Tue, 21 Feb 2017 16:38:06 GMT
--  BerespHeader   Server: Varnish
--  VCL_call       BACKEND_ERROR
--  BerespHeader   X-CDIS: int
--  BerespHeader   Content-Type: text/html; charset=utf-8
--  VCL_return     deliver
--  Storage        malloc Transient
--  ObjProtocol    HTTP/1.1
--  ObjStatus      503
--  ObjReason      Backend fetch failed
--  ObjHeader      Date: Tue, 21 Feb 2017 16:38:06 GMT
--  ObjHeader      Server: Varnish
--  ObjHeader      X-CDIS: int
--  ObjHeader      Content-Type: text/html; charset=utf-8
--  Length         1571
--  BereqAcct      625 0 625 369 0 369
--  End