Memory Overcommitment and Backup-Induced VM Downtime https://www.softaculous.com/board/index.php?tid=19971 <![CDATA[Memory Overcommitment and Backup-Induced VM Downtime]]> https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p59125 Fri, 28 Feb 2025 06:28:16 GMT https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p59125 <![CDATA[Memory Overcommitment and Backup-Induced VM Downtime]]> https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p59004 Mon, 03 Feb 2025 10:44:29 GMT https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p59004 <![CDATA[Memory Overcommitment and Backup-Induced VM Downtime]]> https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p58918
Here VM1 is utilizing under 1GB RAM https://prnt.sc/c89T3EahZw2d
But on the host node, the same VM1's process is utilizing more RAM https://prnt.sc/HI4NpRlVv_4a

And yes KSM is active and running.]]>
Tue, 07 Jan 2025 11:29:35 GMT https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p58918
<![CDATA[Memory Overcommitment and Backup-Induced VM Downtime]]> https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p58916
Do you see any process still active in background once the backup is finished ?

ps aux |grep -E 'backup|qemu-monitor'

Also ksm service is not active on that server ?]]>
Tue, 07 Jan 2025 06:15:02 GMT https://www.softaculous.com/board/index.php?tid=19971&tpg=1#p58916
<![CDATA[]]> https://www.softaculous.com/board/index.php?tid=19971&tpg=0#p58915
Attempts to clear the cache and buffer on the host/VMs have not resolved the issue. The main problem occurs when all three VMs initiate their backup processes simultaneously, resulting in excessive memory demand that causes the VMs to become unresponsive or go offline.]]>
Mon, 06 Jan 2025 20:06:15 GMT https://www.softaculous.com/board/index.php?tid=19971&tpg=0#p58915