Server is acting weird tonight

For some reason my server is acting very weird with high server load and it's 12 midnight. I never have this problem at this time.

00:30:16 up 29 min, 1 user, load average: 6.38, 6.56, 5.97
137 processes: 134 sleeping, 1 running, 2 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 16.9% 0.0% 5.8% 0.0% 0.4% 76.7% 0.0%
Mem: 1546620k av, 930748k used, 615872k free, 0k shrd, 41100k buff
777180k active, 114316k inactive
Swap: 2097136k av, 0k used, 2097136k free 253816k cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
1580 nobody 15 0 19684 12M 11972 S 14.1 0.8 0:26 0 /usr/local/apache/bin/httpd -DSSL
2559 root 16 0 4144 1192 3812 R 3.0 0.0 0:36 0 top
1571 nobody 15 0 20724 13M 11972 S 1.3 0.8 0:22 0 /usr/local/apache/bin/httpd -DSSL
1850 mysql 15 0 161M 35M 3756 D 1.3 2.3 0:02 0 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --us
1570 nobody 16 0 19724 12M 11972 S 0.8 0.8 0:16 0 /usr/local/apache/bin/httpd -DSSL
2386 mysql 15 0 161M 35M 3756 S 0.8 2.3 0:03 0 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --us
1579 nobody 15 0 20560 13M 11972 S 0.4 0.8 0:27 0 /usr/local/apache/bin/httpd -DSSL
1583 nobody 15 0 20788 13M 11972 S 0.4 0.8 0:27 0 /usr/local/apache/bin/httpd -DSSL
1587 nobody 15 0 20708 13M 11972 S 0.4 0.8 0:25 0 /usr/local/apache/bin/httpd -DSSL
2503 nobody 15 0 20728 13M 11972 S 0.4 0.8 0:17 0 /usr/local/apache/bin/httpd -DSSL
2511 root 16 0 7028 2160 6388 S 0.4 0.1 0:00 0 sshd: root@pts/0
2560 nobody 15 0 20516 12M 11972 S 0.4 0.8 0:19 0 /usr/local/apache/bin/httpd -DSSL
2625 mailnull 16 0 113M 109M 6120 S 0.4 7.2 0:14 0 /usr/bin/perl -I/usr/mailscanner/lib /usr/mailscanner/bin/
1 root 16 0 1504 504 1352 S 0.0 0.0 0:01 0 init [3]
2 root RT 0 0 0 0 SW 0.0 0.0 0:00 0 migration/0
3 root 34 19 0 0 0 SWN 0.0 0.0 0:00 0 ksoftirqd/0
4 root 5 -10 0 0 0 SW< 0.0 0.0 0:00 0 events/0
5 root 15 -10 0 0 0 SW< 0.0 0.0 0:00 0 khelper
6 root 14 -10 0 0 0 SW< 0.0 0.0 0:00 0 kacpid
21 root 5 -10 0 0 0 SW< 0.0 0.0 0:00 0 kblockd/0
32 root 20 0 0 0 0 SW 0.0 0.0 0:00 0 pdflush
33 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 pdflush
35 root 10 -10 0 0 0 SW< 0.0 0.0 0:00 0 aio/0
34 root 25 0 0 0 0 SW 0.0 0.0 0:00 0 kswapd0
36 root 10 -10 0 0 0 SW< 0.0 0.0 0:00 0 xfslogd/0
37 root 5 -10 0 0 0 SW< 0.0 0.0 0:00 0 xfsdatad/0
38 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 xfsbufd
131 root 6 -10 0 0 0 SW< 0.0 0.0 0:00 0 ata/0
134 root 16 0 0 0 0 SW 0.0 0.0 0:00 0 kseriod
165 root 15 0 0 0 0 DW 0.0 0.0 0:00 0 kjournald
467 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 khubd
944 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 kjournald
1344 root 15 0 1568 572 1400 S 0.0 0.0 0:00 0 syslogd -m 0
1348 root 15 0 1512 464 1348 S 0.0 0.0 0:00 0 klogd -x
1394 root 16 0 3640 1564 3420 S 0.0 0.1 0:00 0 /usr/sbin/sshd


Any ideas why?

 

 

 

 

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