One if my two Solaris servers has very high CPU load Average and the
Milter-graylist process takes high CPU usage.
We use BigBrother to monitor and report CPU Avage Load. (Each server takes
50% work load from the DNS distribution balancer)
It shows LOAD AVG on hestia is above 250 a couple of times a day (high for 5
minutes then back to around 60 to 90) while LOAD AVG on demeter is 0.66 in
the last 4 days
Each server proccesses 30 thousand emails daily and it runs spamassassin,
mine-defang software. Both servers has two 900MHZ CPUs with 4GB of RAM.
We run mimedefang version 2.51 and SpamAssassin version 3.0.3 running on
Perl version 5.8.0
I think that there is an application problem on Hestia but do not know
what's wrong. It looks like milter-greylist proccess put the a high load on
the cpu. Is there a problem here?
Any help will be very appreciated.
Thanks,
An H. Nguyen
Instant snapshots from 'top' command:
Problem host: 'hestia'
load averages: 1.20, 1.33, 1.42
hestia 15:19:09
69 processes: 66 sleeping, 1 stopped, 2 on cpu
CPU states: 41.2% idle, 55.9% user, 2.9% kernel, 0.0% iowait, 0.0% swap
Memory: 4.0G real, 3.3G free, 214M swap in use, 7.9G swap free
PID USERNAME THR PR NCE SIZE RES STATE TIME FLTS CPU COMMAND
1958 smmsp 49 48 0 46.9M 45.8M cpu00 36:48 0 22.59%
milter-greylist
776 defang 4 23 0 35.3M 34.5M sleep 0:09 0 5.99%
mimedefang.pl
965 defang 4 20 0 32.1M 31.2M sleep 0:02 0 4.09%
mimedefang.pl
701 root 1 58 0 2560K 1536K cpu01 0:01 0 0.63% top
1912 root 58 58 0 39.2M 37.6M sleep 2:10 0 0.62% ismilter
1956 defang 74 58 0 4128K 3152K sleep 1:07 0 0.49% mimedefang
22038 root 14 58 0 3128K 1832K sleep 1:43 0 0.23% syslogd
1961 root 1 43 0 2888K 1680K sleep 0:19 0 0.11% sendmail
978 root 1 48 0 3312K 2648K sleep 0:00 0 0.11% sendmail
1942 defang 3 58 0 3576K 1592K sleep 0:13 0 0.10%
mimedefang-mult
987 root 1 58 0 3328K 2648K sleep 0:00 0 0.09% sendmail
986 root 1 58 0 3336K 2656K sleep 0:00 0 0.09% sendmail
988 root 1 58 0 3336K 2664K sleep 0:00 0 0.07% sendmail
993 root 1 53 0 3304K 2512K sleep 0:00 0 0.02% sendmail
979 root 1 55 0 3312K 2528K sleep 0:00 0 0.02% sendmail
Normal host 'demeter'
load averages: 0.86, 1.18, 1.34
demeter 15:18:13
55 processes: 52 sleeping, 1 running, 1 stopped, 1 on cpu
CPU states: 27.8% idle, 69.4% user, 2.8% kernel, 0.0% iowait, 0.0% swap
Memory: 5.0G real, 4.3G free, 190M swap in use, 4.3G swap free
PID USERNAME THR PR NCE SIZE RES STATE TIME FLTS CPU COMMAND
17104 smmsp 36 58 0 44.8M 43.7M sleep 36:01 0 12.21%
milter-greylist
16025 defang 1 50 0 31.7M 31.0M run 0:10 0 6.91%
mimedefang.pl
16210 root 1 58 0 2560K 1544K cpu00 0:00 0 1.31% top
17058 root 40 59 0 37.0M 35.3M sleep 2:12 0 0.39% ismilter
17101 defang 55 58 0 3648K 2680K sleep 1:05 0 0.34% mimedefang
17107 root 1 38 0 2888K 1672K sleep 0:20 0 0.11% sendmail
16260 root 1 58 0 3336K 2656K sleep 0:00 0 0.11% sendmail
16239 root 1 58 0 3328K 2656K sleep 0:00 0 0.10% sendmail
4456 root 1 58 0 6568K 2720K sleep 0:03 0 0.10% sshd
10562 root 14 58 0 3144K 1856K sleep 1:40 0 0.09% syslogd
16052 defang 1 40 0 28.8M 28.1M sleep 0:03 0 0.07%
mimedefang.pl
16245 root 1 48 0 3336K 2664K sleep 0:00 0 0.06% sendmail
16258 root 1 48 0 3320K 2648K sleep 0:00 0 0.06% sendmail
16251 root 1 56 0 3336K 2640K sleep 0:00 0 0.05% sendmail
16265 root 1 58 0 3320K 2528K sleep 0:00 0 0.05% sendmail
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