External Storage (S3) Sync Stalling — No Error, Just Freezes

[jhonnmick]

Hi everyone,

I’m running Nextcloud 27.1 on Ubuntu 22.04 with PHP 8.2 and Apache. I’ve mounted an S3-compatible external storage (using DigitalOcean Spaces), and while it connects just fine, the sync process intermittently stalls — especially when syncing directories with large numbers of files.

There’s no error in the UI or logs, it just silently hangs and doesn’t progress further unless I restart Apache or re-authenticate the external storage.

Here’s what I’ve tried so far:

• Disabled file chunking
• Increased PHP timeout and memory limits
• Verified permissions

Has anyone experienced this behavior or found a workaround? Could it be a known limitation with object storage backends?

Any suggestions are greatly appreciated!

System Info:

• Nextcloud version: 27.1.x
• PHP: 8.2
• Webserver: Apache2
• External storage backend: S3-compatible (DigitalOcean Spaces)
• SSL: Let’s Encrypt

Thanks in advance!

— jhonnmick

[jtr]

@jhonnmick

Nextcloud version: 27.1.x

Unfortunately this version is no longer supported (and has not been for a long time). Given there are many bug fixes and changes since it was released, it’s going to be challenging to troubleshoot.

Can you update to a supported version (v30 or v31)?

Also, you seem to have overlooked the support template so there are other details missing that are needed to help you.