Hello.
We have one server using more memory than it's suppose to do.
I have configured zfs to only use 512MB ram max.
And i have configured the Ceph OSDs to use 1GB each.
But still i am missing
A vm using 48GB and one using 8GB. 4 osd's using 1 gb each,
So roughly it should be 48+8+1+1+1+1+0.5(zfs)+2gb(system) =62GB, so i am missing 20GB
This calculation checks out on all other 3 servers.
We have one server using more memory than it's suppose to do.
I have configured zfs to only use 512MB ram max.
And i have configured the Ceph OSDs to use 1GB each.
But still i am missing
Code:
root@proxmox1:~# top -o %MEM
top - 09:08:09 up 2 days, 12:53, 2 users, load average: 5,83, 6,61, 6,33
Tasks: 575 total, 1 running, 574 sleeping, 0 stopped, 0 zombie
%Cpu(s): 17,4 us, 1,9 sy, 0,0 ni, 79,6 id, 0,3 wa, 0,0 hi, 0,7 si, 0,0 st
GiB Mem : 125,8 total, 39,6 free, 80,9 used, 5,3 buff/cache
GiB Swap: 0,0 total, 0,0 free, 0,0 used. 43,8 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5818 root 20 0 49,6g 48,1g 0,0g S 655,0 38,2 9127:09 kvm
4549 root 20 0 9,4g 8,1g 0,0g S 29,1 6,4 1785:01 kvm
3315 ceph 20 0 1,7g 0,8g 0,0g S 4,3 0,6 112:14.74 ceph-osd
2967 ceph 20 0 1,5g 0,7g 0,0g S 0,7 0,5 15:32.95 ceph-osd
2735 ceph 20 0 1,0g 0,7g 0,0g S 1,3 0,5 32:24.80 ceph-mon
3311 ceph 20 0 1,7g 0,6g 0,0g S 2,3 0,5 71:00.27 ceph-osd
2968 ceph 20 0 1,5g 0,5g 0,0g S 1,0 0,4 15:55.41 ceph-osd
2738 root rt 0 0,6g 0,2g 0,0g S 3,6 0,2 102:57.32 corosync
2736 ceph 20 0 0,5g 0,2g 0,0g S 0,0 0,1 3:14.23 ceph-mgr
3395 www-data 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:05.45 pveproxy
1955496 www-data 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:06.44 pveproxy worker
1955497 www-data 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:06.82 pveproxy worker
1955495 www-data 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:06.96 pveproxy worker
3212 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:13.47 pvedaemon worke
3210 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:14.07 pvedaemon worke
3211 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:11.74 pvedaemon worke
3209 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 0:03.90 pvedaemon
3349 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 1:21.01 pve-ha-crm
3434 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 2:21.12 pve-ha-lrm
2936 root 20 0 0,3g 0,1g 0,0g S 0,0 0,1 6:48.29 pve-firewall
2941 root 20 0 0,3g 0,1g 0,0g S 1,7 0,1 18:00.84 pvestatd
2595 root 20 0 0,7g 0,1g 0,0g S 0,7 0,0 12:42.69 pmxcfs
3435 www-data 20 0 0,1g 0,1g 0,0g S 0,0 0,0 0:03.87 spiceproxy
3804 statd 20 0 0,1g 0,0g 0,0g S 0,0 0,0 0:00.01 rpc.statd
1955494 www-data 20 0 0,1g 0,0g 0,0g S 0,0 0,0 0:04.64 spiceproxy work
1455 root 20 0 0,1g 0,0g 0,0g S 0,0 0,0 0:06.79 systemd-journal
4099739 root 20 0 0,0g 0,0g 0,0g S 0,0 0,0 0:00.06 systemd
1 root 20 0 0,2g 0,0g 0,0g S 0,0 0,0 0:23.75 systemd
1991 root 20 0 0,0g 0,0g 0,0g S 0,0 0,0 0:00.12 ceph-crash
4132723 root 20 0 0,0g 0,0g 0,0g S 0,0 0,0 0:00.02 sshd
4099730 root 20 0 0,0g 0,0g 0,0g S 0,0 0,0 0:00.07 sshd
Code:
root@proxmox1:~# arcstat
time read miss miss% dmis dm% pmis pm% mmis mm% arcsz c
09:10:46 0 0 0 0 0 0 0 0 0 277M 381M
Code:
root@proxmox1:~# free -m
total used free shared buff/cache available
Mem: 128803 82947 40431 88 5424 44735A vm using 48GB and one using 8GB. 4 osd's using 1 gb each,
So roughly it should be 48+8+1+1+1+1+0.5(zfs)+2gb(system) =62GB, so i am missing 20GB
This calculation checks out on all other 3 servers.
