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Zimbra 8.7.11 eating all free / available memory

Posted: Thu Oct 05, 2017 1:24 pm
by marcobrandao
Hi !
I'm experiencing a major problem since installing version zcs-8.7.11_GA_1854 on UBUNTU 16 64 bit
When I start the zimbra, it already allocates 3.5 GB and during the day continues to increase the used memory. My server had 8 GB of memory and I recently upgraded to 16 GB of RAM. I currently have approximately 250 active accounts. The available memory goes down gradually, and when it finishes the load aveage arrives at very high levels and it catches the whole server.
In rare moments, free and available memory increases.

Below the output commands:


free -m
total used free shared buff / cache available
Mem: 15760 7287 3991 160 4481 8007
Swap: 1953 0 1953


ps -A --sort -rss -o comm,pmem,pcpu | head -n 20
COMMAND %MEM %CPU
java 21.6 9.2
mysqld 13.4 3.0
clamd 3.3 1.5
java 1.8 0.6
/opt/zimbra/com 0.9 1.0
/opt/zimbra/com 0.9 0.4
/opt/zimbra/com 0.8 0.3
/opt/zimbra/com 0.8 0.6
/opt/zimbra/com 0.8 0.3
/opt/zimbra/com 0.8 0.4
/opt/zimbra/com 0.8 0.3
/opt/zimbra/com 0.8 0.5
/opt/zimbra/com 0.8 0.1
/opt/zimbra/com 0.7 0.0
/opt/zimbra/com 0.7 0.0
slapd 0.3 0.3
perl 0.2 0.1
httpd 0.1 0.0
httpd 0.1 0.0

Any help is welcome to stabilize my server !

Re: Zimbra 8.7.11 eating all free / available memory

Posted: Sat Oct 07, 2017 7:02 pm
by Raun
What is Java heap size and innodb buffer pool size set in your environment?

Re: Zimbra 8.7.11 eating all free / available memory

Posted: Tue Oct 24, 2017 11:32 pm
by marcobrandao
Hi, after upgrade to 16GB RAM the problem solved !

Re: Zimbra 8.7.11 eating all free / available memory

Posted: Tue May 15, 2018 4:58 am
by DennisAyala
marcobrandao wrote:Hi, after upgrade to 16GB RAM the problem solved !


I have the same issue with 8.7.11 but I have 28 GB of RAM and about 400 users.

Regards,

Dennis

Re: Zimbra 8.7.11 eating all free / available memory

Posted: Tue May 15, 2018 8:37 am
by gabrieles
As Raun said, check your heap and innodb buffer pool size. Have you upgraded to 28 GB or 28 was the size at installation time?