Occasional high load on the server.

Discussion in 'General' started by kanour, Nov 14, 2006.

  1. kanour

    kanour New Member

    Hi. I have occasional very high load on my server. Do you have any ideas what could be the problem?
    The ps aux shot was taken on 2006-11-13 at 15:49:40.
    The interesting thing is that most of the postfix and procmail, perl processes hangs there from 15:38. But they dissapear after while and server load goes down again.
    At the time of high load server has big problems to serve its users.

    Code:
    USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
    www-data 15376  0.0  1.6 109256 4992 ?       S    14:12   0:01 /usr/sbin/apache2 -k start -DSSL
    www-data 15377  0.0  1.4 109012 4440 ?       S    14:12   0:01 /usr/sbin/apache2 -k start -DSSL
    www-data 15621  0.0  1.4 107948 4488 ?       S    14:13   0:02 /usr/sbin/apache2 -k start -DSSL
    www-data 16741  0.0  1.6 107212 5096 ?       S    14:38   0:00 /usr/sbin/apache2 -k start -DSSL
    web42_a  17256  0.0  0.3 24144 1120 ?        S    14:54   0:00 proftpd: web42_admin - chello217023250106.chello.sk: IDLE
    postfix  17754  0.0  0.4 16968 1300 ?        S    15:09   0:00 trivial-rewrite -n rewrite -t unix -u -c
    www-data 17824  0.0  1.6 109004 4948 ?       S    15:10   0:00 /usr/sbin/apache2 -k start -DSSL
    www-data 17850  0.3  1.8 107932 5624 ?       S    15:10   0:07 /usr/sbin/apache2 -k start -DSSL
    www-data 17892  0.1  1.6 107140 5020 ?       S    15:11   0:02 /usr/sbin/apache2 -k start -DSSL
    postfix  17998  0.0  0.3 16512 1108 ?        S    15:14   0:00 pickup -l -t fifo -u -c
    postfix  18969  0.0  0.3 16876 1092 ?        S    15:38   0:00 local -t unix
    postfix  18970  0.0  0.3 16876 1092 ?        S    15:38   0:00 local -t unix
    postfix  18971  0.0  0.3 17004 1104 ?        S    15:38   0:00 local -t unix
    postfix  18972  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    postfix  18973  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    postfix  18974  0.0  0.3 17004 1104 ?        S    15:38   0:00 local -t unix
    postfix  18975  0.0  0.4 16880 1448 ?        S    15:38   0:00 local -t unix
    postfix  18976  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    postfix  18977  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    postfix  18978  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    postfix  18979  0.0  0.4 16880 1328 ?        S    15:38   0:00 local -t unix
    web39_a  18980  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_a  18981  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_a  18983  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_j  18984  0.0  0.1  8560  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  18985  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  18986  0.0  0.1  8556  608 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  18987  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  18989  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_m  18990  0.0  0.1  8560  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_s  18998  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_t  18999  0.0  0.1  8560  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  19000  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  19001  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  19004  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_j  19005  0.1  5.4 64012 16732 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_juraj/.user_prefs
    web39_j  19012  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  19013  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  19016  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_j  19017  0.1  3.8 67928 11972 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_janko/.user_prefs
    postfix  19018  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    web39_m  19019  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_m  19023  0.0  0.0  8560  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_m  19024  0.0  5.7 65988 17796 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_mikislavik/.user_prefs
    web39_t  19025  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_t  19029  0.0  0.0  8560  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_t  19030  0.0  7.0 68356 21528 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_trash/.user_prefs
    web39_m  19031  0.0  0.1  8560  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_m  19032  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  19034  0.0  0.0  8560  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_j  19035  0.0  6.9 66596 21456 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_janko/.user_prefs
    postfix  19036  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    web39_j  19037  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_j  19038  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_j  19041  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_j  19042  0.1  3.2 68744 10004 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_janko/.user_prefs
    postfix  19043  0.0  0.3 16880 1092 ?        S    15:38   0:00 local -t unix
    web39_k  19044  0.0  0.1  8556  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_r  19045  0.0  0.1  8560  572 ?        Ss   15:38   0:00 /usr/bin/procmail -f-
    web39_k  19046  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_k  19049  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_k  19050  0.0  4.6 69308 14368 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_katka/.user_prefs
    web39_r  19051  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_r  19053  0.0  0.0  8560  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_r  19054  0.0  4.5 68556 13892 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_roman/.user_prefs
    web39_s  19055  0.0  0.0     0    0 ?        Z    15:38   0:00 [sh] <defunct>
    web39_m  19059  0.0  0.0  8560  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_m  19060  0.0  7.8 64816 24168 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_mikislavik/.user_prefs
    web39_s  19061  0.0  0.0  8556  120 ?        S    15:38   0:00 /usr/bin/procmail -f-
    web39_s  19062  0.1  4.2 68160 12912 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_sona/.user_prefs
    web39_a  19066  0.0  4.8 63912 14776 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_admin/.user_prefs
    web39_j  19070  0.1  4.4 69256 13620 ?       D    15:38   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_juraj/.user_prefs
    postfix  19349  0.0  0.7 33916 2180 ?        S    15:42   0:00 smtpd -n smtp -t inet -u -c -s 2
    www-data 19378  0.0  1.7 107332 5308 ?       S    15:43   0:00 /usr/sbin/apache2 -k start -DSSL
    www-data 19382  0.0  1.6 106236 4976 ?       S    15:43   0:00 /usr/sbin/apache2 -k start -DSSL
    www-data 19386  0.0  1.9 107160 6000 ?       S    15:43   0:00 /usr/sbin/apache2 -k start -DSSL
    www-data 19387  0.0  2.1 107644 6484 ?       S    15:43   0:00 /usr/sbin/apache2 -k start -DSSL
    postfix  19393  0.0  0.5 16868 1604 ?        S    15:43   0:00 cleanup -z -t unix -u -c
    postfix  19408  0.0  0.5 16880 1624 ?        S    15:44   0:00 local -t unix
    root     19445  0.0  0.3 38476 1180 ?        Ss   15:45   0:00 sshd: support [priv]
    support  19467  0.0  0.3 38616 1000 ?        S    15:45   0:00 sshd: support@pts/0
    support  19469  0.0  0.5 11632 1564 pts/0    Ss   15:45   0:00 -bash
    postfix  19563  0.0  0.4 16508 1300 ?        S    15:48   0:00 proxymap -t unix -u
    web39_t  19594  0.0  0.2  8556  800 ?        Ss   15:48   0:00 /usr/bin/procmail -f-
    web39_t  19599  0.0  0.0     0    0 ?        Z    15:49   0:00 [sh] <defunct>
    web39_t  19600  0.0  0.1  8556  308 ?        S    15:49   0:00 /usr/bin/procmail -f-
    web39_t  19601  2.0 12.8 68528 39444 ?       D    15:49   0:00 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/var/www/web39/user/web39_trash/.user_prefs
    postfix  19610  0.0  0.5 16876 1576 ?        S    15:49   0:00 local -t unix
    support  19640  0.0  0.4  7180 1332 pts/0    S+   15:49   0:00 /bin/bash scripts/systemload.sh
    support  19643  0.2  0.3  8904  956 pts/0    R+   15:49   0:00 ps aux
    root     19653  0.0  0.9 32756 2944 ?        D    15:50   0:00 smtpd -n smtp -t inet -u -c -s 2
    admispc  19655  0.0  0.2 30640  712 ?        S    15:50   0:00 /root/ispconfig/httpd/bin/ispconfig_httpd -DSSL
    
     
  2. till

    till Super Moderator

    Please check you mail log, do you get a high amont of mail / spam when this happens.
     
  3. xlmdxlmd

    xlmdxlmd New Member

    how to change?
     
  4. falko

    falko Super Moderator

    This thread was started by kanour. Do you have the same problem?
     
  5. hoihtah

    hoihtah New Member

    I seem to be having the same problem. :(
    Any remedy?
    I don't get that many emails. I only have less than 5 email accounts on that server. And perhaps less than 2 spams/day all together.
     
  6. till

    till Super Moderator

    Pkease check with e.g. the "top" command, which processes are causing the high load.
     

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