Server hangs out for ran out of the swap space.

Discussion in 'Server Operation' started by gral, Jun 12, 2008.

  1. gral

    gral New Member

    hello ev1;

    for five day in a row my server hangs out ( i cant enter on it, but still with ping) because is ran out of the swap space always at the same time. Is a server with 2 Gb of ram and four 4 Gb of swap and only receive http request

    Could be a memory problem, yesterday i disable the omm-killer what i saw it in the logs but with not luck, the server continue hangs every night.

    I'll ask to the DC a change of the physicals mem .

    Have anyone any idea to stop the hangs ?.

    Thanks if you need futher information please let me know.

    Regards! :D
     
  2. chipsafts

    chipsafts New Member

    how about setting a cron job to clean out the swap space and/or restart the httpd service.
     
  3. gral

    gral New Member

    hello chipsafts thanks for quickly answer but, in which way i can clean my swap memory ?

    I have a cron already controlling the httpd process ?

    Other way i was thought is limitds de httpd process in the /etc/security/limits.conf , could be good ? :confused:

    Many thanks!
     
  4. chipsafts

    chipsafts New Member

    presuming your swap is called /tmp ,
    at the command line do
    Code:
    ls -l /tmp  | head -21
    
    copy and paste the results in a reply. Seeing a subset of the files being created might help.
     
  5. gral

    gral New Member

    As far as i know my swap is a single partition; here is my /tmp output and added the df and fdisk -l output too.

    Code:
    
    root@server1 ~]# ls -la /tmp  | head -21
    total 28
    drwxrwxrwt   3 root   root   4096 Jun 12 18:05 .
    drwxr-xr-x  24 root   root   4096 Jun 12 18:03 ..
    -rw-r--r--   1 root   root     34 Jun 11 04:35 errores_sushiclean.txt
    drwxrwxrwt   2 root   root   4096 Jun 12 18:03 .ICE-unix
    srwx------   1 root   root      0 Jun 12 18:05 .racoon
    -rw-r--r--   1 nagios nagios    0 Jun 12 18:33 tables
    -rw-r--r--   1 root   root   2077 Jun  2 12:43 tcpdump
    
    [root@tserver1 ~]# df
    Filesystem           1K-blocks      Used Available Use% Mounted on
    /dev/hda3            113267944  35458020  72056248  33% /
    /dev/hda1               101086     17527     78340  19% /boot
    none                   1037476         0   1037476   0% /dev/shm
    [root@server1 ~]# fdisk -l
    
    Disk /dev/hda: 120.0 GB, 120034123776 bytes
    255 heads, 63 sectors/track, 14593 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/hda1   *           1          13      104391   83  Linux
    /dev/hda2              14         267     2040255   82  Linux swap
    /dev/hda3             268       14593   115073595   83  Linux
    
    
    Hope it help for a solution.

    Thanks
     
  6. falko

    falko Super Moderator ISPConfig Developer

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