Backup stalls forever
Hi all, we got a cloud server with cPanel 110 working on CentOS, with somewhat a strange behaviour.
A few weeks ago backup stopped working, at first it reported not enough space on the backup drive and when we handled that issue, it started reporting gtar or pigz process stalled, and never finished a single backup.
When we tried to dig up a little bit further, we noticed that backup process is not working because it's waiting for system load to go down. After looking further we noticed that it reports high average load, although there is almost no CPU usage, low memory usage, low disk and network traffic. We tried various ways to make that backup, but with no success. We even increased 'Extra CPUs for server loads', and backup started, but after some time hitting the new average load limit which made it stall, once again with very low system usage. The only notice of high average load is iowait (in HTOP) almost hitting 100%, but we were not able to further troubleshoot the issue.
We would really appreciate any kind of advice.
Thanks!
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i have same problem
cPanel 110 working on CentOS,
backup causing very high Disk IO
that causing very high load on server , did you find solution ?
it was working fine from this year start , just happened last few weeks
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If you are seeing high I/O it might be best to reach out to your hosting provider or datacenter to have them check the health of the drive. There aren't any tools in cPanel that would increase or decrease the I/O usage, as that is up to the speed of the system to perform the backup data reading and transfer.
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