G_38T61EHXo plays in browser, HTTP error 503 on youtube-dl with no special options

[leijurv]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.08.28. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2018.08.28

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'G_38T61EHXo', u'-v']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.08.28
[debug] Python version 2.7.15 (CPython) - Darwin-17.5.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.4.1, ffprobe 3.4.1
[debug] Proxy map: {}
[youtube] G_38T61EHXo: Downloading webpage
[youtube] G_38T61EHXo: Downloading video info webpage
[debug] Default format spec: bestvideo+bestaudio/best
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[debug] Invoking downloader on u'https://r5---sn-n4v7knlz.googlevideo.com/videoplayback?requiressl=yes&keepalive=yes&sparams=aitags%2Cclen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Crequiressl%2Csource%2Cexpire&ipbits=0&source=youtube&mv=m&ms=au%2Crdu&fvip=5&key=yt6&ip=4.7.12.50&lmt=1378570731690611&mm=31%2C29&mn=sn-n4v7knlz%2Csn-n4v7sn7l&dur=78.845&id=o-ACR32F-NkXKd_ZKn3WKv4EB3-_vqvAen2fREKeuIAlpz&gir=yes&mt=1535759431&clen=25218720&expire=1535781133&ei=rdSJW6PuAZrOkga3wLeICQ&itag=137&pl=21&c=WEB&initcwndbps=1185000&signature=3F3C8946EF734793D156E1BF5962BA3DFDC0D933.A3E89E3328677F7E56368EBA60DD78EC2E3433CA&mime=video%2Fmp4&aitags=133%2C134%2C135%2C136%2C137%2C160%2C242%2C243%2C244%2C247%2C248%2C278&ratebypass=yes'
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 1 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 2 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 3 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 4 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 5 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 6 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 7 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 8 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 9 of 10)...
[download] Got server HTTP error: HTTP Error 503: Service Unavailable. Retrying (attempt 10 of 10)...
ERROR: giving up after 10 retries
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/downloader/http.py", line 341, in real_download
    establish_connection()
  File "/usr/local/bin/youtube-dl/youtube_dl/downloader/http.py", line 182, in establish_connection
    raise RetryDownload(err)
RetryDownload

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Description of your issue, suggested solution and other information

It doesn't download. Every other video from his channels downloads fine, except this one.

[dstftw]

bestvideo format is not available youtube side.

[leijurv]

I'm sorry, what does that mean? Is there no way to download this video? @dstftw