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The Jenkins download Plug-in can't be downloaded. Solution

2022-06-30 21:38:00 【(~ ￣▽ ￣) - Phoenix Nirvana】

The virtual machine runs to download updates jenkins Plug in failed

jenkins Failed to install update plug-in ,

java.io.IOException: Server returned HTTP response code: 503 for URL: https://get.jenkins.io/plugins/jquery/1.12.4-1/jquery.hpi
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1894)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
at hudson.model.UpdateCenter $U p d a t e C e n t e r C o n f i g u r a t i o n . d o w n l o a d (U p d a t e C e n t e r . j a v a : 1291) C a u s e d : j a v a . i o . I O E x c e p t i o n : F a i l e d t o l o a d h t t p s : / / u p d a t e s . j e n k i n s . i o / d o w n l o a d / p l u g i n s / j q u e r y / 1.12.4 - 1 / j q u e r y . h p i t o / r o o t / . j e n k i n s / p l u g i n s / j q u e r y . j p i . t m p a t h u d s o n . m o d e l . U p d a t e C e n t e r$ UpdateCenterConfiguration.download(UpdateCenter.java:1302)
Caused: java.io.IOException: Failed to download from https://updates.jenkins.io/download/plugins/jquery/1.12.4-1/jquery.hpi (redirected to: https://get.jenkins.io/plugins/jquery/1.12.4-1/jquery.hpi)
at hudson.model.UpdateCenter $U p d a t e C e n t e r C o n f i g u r a t i o n . d o w n l o a d (U p d a t e C e n t e r . j a v a : 1336) a t h u d s o n . m o d e l . U p d a t e C e n t e r$ DownloadJob._run(UpdateCenter.java:1893)
at hudson.model.UpdateCenter $InstallationJob._run(UpdateCenter.java:2205) at hudson.model.UpdateCenter$ DownloadJob.run(UpdateCenter.java:1867)
at java.util.concurrent.Executors $R u n n a b l e A d a p t e r . c a l l (E x e c u t o r s . j a v a : 511) a t j a v a . u t i l . c o n c u r r e n t . F u t u r e T a s k . r u n (F u t u r e T a s k . j a v a : 266) a t h u d s o n . r e m o t i n g . A t m o s t O n e T h r e a d E x e c u t o r$ Worker.run(AtmostOneThreadExecutor.java:121)
at java.lang.Thread.run(Thread.java:748)
Pictured

terms of settlement

One , There may be a problem with the download source
Three sources are known

https://updates.jenkins.io/update-center.json（ or https://updates.jenkins.io/update-center.json）
https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json
http://mirror.esuni.jp/jenkins/updates/update-center.json
Specific location

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Pull to the end , Change the source as shown in the figure below

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Method 2 , Change the network
I hadn't thought of such a solution all afternoon , The last technical bull told me , Try changing the network .
It's really better to change to mobile network . Happy