Low free RAM after Plesk 12 update

[Aiden]

Hello,

Plesk recently auto-updated during my sleep time and I got the email saying it updated successfully. The forum was fine, plesk had updated and it was all performing fine.

I tend to make a backup before I go to sleep so I did and noticed that my website started becoming slower than usual. I check to see and it said there that out of 8GB, I only had 300 free. Yesterday and ever since I got this server, I've always had at least 4GB free RAM available and I haven't changed anything other than plesk auto-updating itself.

Can anyone assist me on this please?

Thank you very much!

 

[abdi]

Hello Aiden,
The command

htop

should assist you in determining which processes on the server are consuming much RAM.

 

[IgorG]

Do you mean that latest microupdate was installed on your Plesk 12 server?
BTW, Fail2ban can use a lot of RAM on the server if it monitors numerous jails with many log files.

 

[Aiden]

Hello Aiden,
The command

htop

should assist you in determining which processes on the server are consuming much RAM.

Command not found. I don't have it installed apparently.

Do you mean that latest microupdate was installed on your Plesk 12 server?
BTW, Fail2ban can use a lot of RAM on the server if it monitors numerous jails with many log files.

The recent update. I think I was already on Plesk 12, can't remember.

If I run cat /proc/meminfo, this is what it shows me:


MemTotal: 8047624 kB
MemFree: 237508 kB
Buffers: 155592 kB
Cached: 6358016 kB
SwapCached: 22408 kB
Active: 4035020 kB
Inactive: 2874748 kB
Active(anon): 120712 kB
Inactive(anon): 307528 kB
Active(file): 3914308 kB
Inactive(file): 2567220 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1048572 kB
SwapFree: 723432 kB
Dirty: 876 kB
Writeback: 0 kB
AnonPages: 378000 kB
Mapped: 22624 kB
Shmem: 32060 kB
Slab: 801028 kB
SReclaimable: 765656 kB
SUnreclaim: 35372 kB
KernelStack: 2096 kB
PageTables: 15384 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 5072384 kB
Committed_AS: 1494052 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 92480 kB
VmallocChunk: 34359635016 kB
HardwareCorrupted: 0 kB
AnonHugePages: 260096 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 6144 kB
DirectMap2M: 8374272 kB

 

[UFHH01]

Hi Aiden,

if "htop" is not installed on your system, you could choose to install it.

Ubuntu: apt-get install htop
CentOS: yum install htop​

 

[Aiden]

Hi Aiden,

if "htop" is not installed on your system, you could choose to install it.

Ubuntu: apt-get install htop
CentOS: yum install htop​

Thank you for replying!

This is what I get when I ran htop: http://i.imgur.com/4w3FJ8A.png

The highest memory usage is mysqld.

 

[IgorG]

Do you have something suspicious in mysql log?

 

[Aiden]

Do you have something suspicious in mysql log?

I think the high memory usage is caused by the backup bug.

RAM is 6GB Free now but if I run a backup, it goes back to 200mb free and spams my /tmp folder.

http://talk.plesk.com/threads/plesk-creating-lots-of-backup-dumps-in-tmp-folder.331796/