CPU Consume is High process Jetty

[mtimbi@ups.edu.ec]

Good morning, my server's CPU consumes too many resources and makes access to Web Mail is too slow, I checked the server processes and the process that consumes too many resources is the jetty.

top - 09:25:07 up 21 days, 23:03, 1 user, load average: 15.17, 15.14, 15.32
Tasks: 208 total, 6 running, 200 sleeping, 0 stopped, 2 zombie
Cpu(s): 98.2%us, 0.6%sy, 0.1%ni, 0.7%id, 0.2%wa, 0.1%hi, 0.2%si, 0.0%st
Mem: 18484132k total, 12353064k used, 6131068k free, 133328k buffers
Swap: 4194296k total, 136k used, 4194160k free, 1425020k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11619 zimbra 18 0 7981m 7.5g 15m S 379.2 42.6 35582:58 java
19947 zimbra 25 0 55672 9356 2388 R 14.6 0.1 26:10.37 zmlogger
8451 zimbra 15 0 2156m 1.9g 5004 S 1.0 10.6 99:20.92 mysqld
3781 root 11 -5 0 0 0 S 0.7 0.0 32:24.11 kjournald
29434 root 15 0 12740 1148 800 R 0.7 0.0 0:00.02 top
388 root 15 0 0 0 0 S 0.3 0.0 4:17.70 pdflush
2990 dbus 16 0 21504 1184 716 S 0.3 0.0 0:09.16 dbus-daemon
3394 root 35 19 253m 18m 2192 S 0.3 0.1 0:54.46 yum-updatesd
6592 zimbra 18 0 434m 95m 22m S 0.3 0.5 35:03.18 slapd

The process 11619 is a java process

[root@zcs1 etc]# ps -ef |grep 11619
zimbra 11619 11618 99 Jun13 ? 24-17:06:16 /opt/zimbra/java/bin/java -server -XX:NewRatio=2 -Djava.awt.headless=true -XX:MaxPermSize=128m -XX:SoftRefLRUPolicyMSPerMB=1 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:+UseConcMarkSweepGC -XX:PermSize=128m -Xss256k -Xms7220m -Xmx7220m -Xmn1805m -Djava.io.tmpdir=/opt/zimbra/mailboxd/work -Djava.library.path=/opt/zimbra/lib -Djava.endorsed.dirs=/opt/zimbra/mailboxd/common/endorsed -Dzimbra.config=/opt/zimbra/conf/localconfig.xml -Djetty.home=/opt/zimbra/mailboxd -DSTART=/opt/zimbra/mailboxd/etc/start.config -jar /opt/zimbra/mailboxd/start.jar /opt/zimbra/mailboxd/etc/jetty.properties /opt/zimbra/mailboxd/etc/jetty-setuid.xml /opt/zimbra/mailboxd/etc/jetty.xml
root 29649 16288 0 09:26 pts/0 00:00:00 grep 11619

[phoenix]

You should give details of your hardware specification and how many users are on the server (and whether they're IMAP or web UI clients), you should also consider upgrading to the most recent Zimbra release.

[mtimbi@ups.edu.ec]

I have a Server IBM HS21
WITH Intel(R) Xeon(R) CPU E5335 @ 2.00GHz
18 GB RAM
Partition of 1019G 918G 50G 95% /opt/zimbra

It is my Server..

Use Web UI clients in 90% of my users..

I have 1500 Users..