Single host unbearable slow updates

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Lost_My_Ones_and_Zeros

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Jun 5, 2025
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Get:20 https://enterprise.proxmox.com/debian/ceph-tentacle trixie/enterprise amd64 ceph-common amd64 20.2.1-pve1 [32.8 MB]
43% [20 ceph-common 25.1 MB/32.8 MB 77%] 5455 B/s 3h 2min 16s

Ok seriously I'm lost on this one. I have 1 host that simply refuses to pull down updates at more then 50kbs averaging 15kbs. I have no idea where to look at this point it's the same repos on two other host and those ones are fine. They all run though the same switching all VM's run fine. I wasted an entire day and way into the next morning waiting for this single host to download updates. These only have a single 10gb port for uplink at the moment at first I was expecting maybe lcap messed up but single port. No VM's are running on this host during updates.
 
I ended up doing that before I found the post, around 2 hours ago give or take. Figured it was a load balancer that was in the middle so forced the IP to the same from another node that doesn't have the problem. End result = Fail. Forcing the same one I went from 15kbs to 21kbs on average but after an hour it tanks and have to start all over again. This is painful to say the least.
 
please provide a traceroute to enterprise.proxmox.com , as well as a DNS resolution of that domain (both from/on the affected host). if you don't want to provide them publicly and your subscription level allows you to do so, please open an enterprise support ticket.
 
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Reactions: Stoiko Ivanov
If it's only happening on a single host, I'd compare it against a healthy node first. Check DNS resolution times, repository response times, and disk I/O during the update process. I've seen update jobs appear frozen when the underlying storage was under heavy load.

You might also want to run apt update manually and watch where the delay occurs. If package lists download quickly but installation is slow, the issue is probably local to the host rather than the repositories.

Are you seeing the slowdown on all repositories or only a specific one?
 
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