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Re: [rdiff-backup-users] Backup freezing destination computer

From: Robert Farrington
Subject: Re: [rdiff-backup-users] Backup freezing destination computer
Date: Fri, 14 Jun 2019 18:32:22 +0000 (UTC)

 Thanks for your response.  I don't think it's a hardware problem, but here's 
our hardware setup:
Pentium 4 3GHz2 1TB Western Digital hard drives in Raid-1 config, SATA-2 
interfaceIt looks like we are using XFS and LVM.
 I know it's an old cpu, but the disks have been replaced recently.
I can't usually look at the load average when the system freezes because I 
can't do anything. But I have seen the CPU used 100% during a backup.

    On Wednesday, June 12, 2019, 8:00:03 PM PDT, Patrik Dufresne 
<address@hidden> wrote:  
 It's probably not directly related to rdiff-backup but the high volume of IO 
on the server. If you have a monitoring system, could you take a look at 
loadaverage ? It's probably going up when the backup is running. It's telling 
you the IO of the server is probably not capable enough. It might be related to 
various factor. Could you provide more technical details regarding your setup ? 
Hardware, RAID config, SATA or SAS, FileSystem, ext4, LVM ?
As an example. On one of our server, an LXC on Proxmox, running on ZFS, I 
remeber I needed to disable a kernel feature related to huge memory page. 
Otherwise, the container would died without apparent reason.
--Patrik Dufresne Service Logiciel inc.http://www.patrikdufresne.com/
514-971-6442130 rue DorisSt-Colomban, QC J5K 1T9

On Wed, Jun 12, 2019 at 8:49 PM Robert Farrington <address@hidden> wrote:

I am using rdiff-backup 1.2.8 on Centos 7, backing up a remote Centos 7 
computer.  It occasionally freezes up the destination computer, and I can't log 
in or ssh in to see what's wrong.  If I leave it logged in and it freezes, I 
still can't do anything to find out what's wrong.  I have to power cycle to get 
it back.  Any suggestions on how to fix this?Bob
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