[{reqId}] {exception_url}   Wikimedia\RequestTimeout\RequestTimeoutException: The maximum execution time of {limit} seconds was exceeded

time curl -as 'https://zh.wikipedia.org/w/rest.php/v1/revision/90601530/html'
{"httpCode":504,"httpReason":"upstream request timeout"}

real    0m15.305s
user    0m0.086s
sys     0m0.024s

$ date --utc ; time curl -I https://zh.wikipedia.org/w/rest.php/v1/revision/90601530/html 
Mon 12 Jan 2026 04:58:10 UTC
HTTP/2 504 
content-length: 57
content-type: application/json
date: Mon, 12 Jan 2026 04:58:25 GMT
server: envoy
age: 16
x-cache: cp5023 miss, cp5023 miss
x-cache-status: miss
server-timing: cache;desc="miss", host;desc="cp5023"
strict-transport-security: max-age=106384710; includeSubDomains; preload
report-to: { "group": "wm_nel", "max_age": 604800, "endpoints": [{ "url": "https://intake-logging.wikimedia.org/v1/events?stream=w3c.reportingapi.network_error&schema_uri=/w3c/reportingapi/network_error/1.0.0" }] }
nel: { "report_to": "wm_nel", "max_age": 604800, "failure_fraction": 0.05, "success_fraction": 0.0}
set-cookie: WMF-Last-Access=12-Jan-2026;Path=/;HttpOnly;secure;Expires=Fri, 13 Feb 2026 00:00:00 GMT
set-cookie: WMF-Last-Access-Global=12-Jan-2026;Path=/;Domain=.wikipedia.org;HttpOnly;secure;Expires=Fri, 13 Feb 2026 00:00:00 GMT
x-client-ip: 2403:5809:37b3:0:8cd:c498:9ac:b05c
set-cookie: GeoIP=AU:NSW:Sydney:-33.83:151.08:v4; Path=/; secure; Domain=.wikipedia.org
set-cookie: NetworkProbeLimit=0.001;Path=/;Secure;SameSite=None;Max-Age=3600
set-cookie: WMF-Uniq=7v_I90s-XPlzjVmCaU66RwLmAAAAAFvdBGugFuXfzuA6VuTqmRfwpuQ5NCeV24lc;Domain=.wikipedia.org;Path=/;HttpOnly;secure;SameSite=None;Expires=Tue, 12 Jan 2027 00:00:00 GMT
server-timing: WMF-Uniq;fy25-26-we-4-2-hcaptcha-editing=control-2;
x-request-id: 74ae7b12-eac0-44eb-be2f-df50da98d534


real    0m15.591s
user    0m0.081s
sys     0m0.014s

"fail_reason": "wmf api call returned status not 200, 206 or 302 for url https://zh.wikipedia.org/w/rest.php/v1/revision/91120893/html? with error 504 Gateway Timeout:{\"httpCode\":504,\"httpReason\":\"upstreamrequesttimeout\"}",