411 Length required when auto uploading backups to Google Cloud Storage (S3)

unity200

• January 01, 2022 21:56

The server is logging the below error while trying to upload the backups to Google Cloud Storage. Some are succeeding, but most are failing: [2022-01-02 01:43:21 +0000] info [cpbackup_transporter] Upload attempt #3 starting for /backup/2022-01-02/accounts/*******.tar.gz to /weekly/2022-01-02/accounts/******.tar.gz for destination: Google Cloud Storage [2022-01-02 01:43:21 +0000] warn [cpbackup_transporter] Upload attempt failed: Failure in initiate_multipart_upload: Amazon::S3: Amazon responded with 411 Length Required at /usr/local/cpanel/3rdparty/perl/532/lib/perl5/cpanel_lib/Amazon/S3/Bucket.pm line 99. at /usr/local/cpanel/Cpanel/LoggerAdapter.pm line 27 I think length header is not being sent while doing a multipart upload for a larger site or something.

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  HostNoc

  • January 03, 2022 08:53

  HI You must provide the Content-Length HTTP header Regards HostNoc

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  unity200

  • January 05, 2022 21:24

  That is apparently obvious. However the thing is that it is the cpanel backup script that is doing the backup, so it must provide the content length header when it encounters any backup that is more than one part. And apparently it is not doing that. Im using the standard cpanel features, this is not a custom feature.

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  cPanelAnthony

  • January 06, 2022 19:41

  Hello! It looks like there could be various issues happening here. Would you be able to open a ticket using the link in my signature and update me once done?

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  unity200

  • January 12, 2022 01:49

  Hello! It looks like there could be various issues happening here. Would you be able to open a ticket using the link in my signature and update me once done?

  
  Done:

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  cPanelAnthony

  • January 12, 2022 21:17

  Thank you! It looks like the solution is related to this article.

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  unity200

  • January 18, 2022 02:46

  Were you able to get this resolved?

  
  Nope. It turned out that there is no way to use Google Storage with cPanel backup. It just doesn't work.

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  cPanelAnthony

  • January 20, 2022 17:57

  I'm sorry to hear that; thank you for the update.

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  Julian Stopps

  • February 10, 2026 16:29

  Hi CPanel Team,

  Was this issue ever resolved? We've just added some Google Cloud Buckets to our backup locations and are getting 411 errors when the main backup process tries to do the transfer (the location verifies without issue, it only errors when the actual backup process tries to transfer the main files). 

  All the best,

   

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  cPRex Jurassic Moderator

  • February 11, 2026 18:18

  Julian Stopps - I don't see that this has been resolved on our end.  Are you seeing the exact same error as the OP in the logs?

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  Julian Stopps

  • February 12, 2026 08:22

  Hi cPRex,

  Yes we are seeing the exact same error when trying to store backup in Google Cloud Storage buckets.

  All the best,

   

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  cPRex Jurassic Moderator

  • February 12, 2026 17:07

  Thanks for the confirmation.  I don't see that this has been resolved but we are tracking this in case CPANEL-46247 and you can follow along for updates here:

  https://support.cpanel.net/hc/en-us/articles/4418821972759-S3-Compatible-Backup-destination-returns-a-411-Content-Length-error-when-using-Google-Cloud-Storage?source=search

  I've also let the developers know this needs to be reevaluated as users are still running into this issue.

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