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var memory usage increasing

 
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Top Forums UNIX for Dummies Questions & Answers var memory usage increasing
# 8  
Old 08-28-2008
this whole week /var has been going up 1% everyday
I have had this problem before were it would rocket up to 99% and bring the server down to its knees. Now one time i rebooted the server and /var went straight down to 65% but ever since its been creeping up everyday. I want to prevent it from happening again.
# 9  
Old 08-28-2008
Code:
log]# ls -lht
total 20M
-rwxrwxrwx  1 root     root     3.1M Aug 28 13:58 maillog
-rw-------  1 root     root     3.1M Aug 28 13:58 cron
-rw-rw----  1 root     mail     656K Aug 28 13:57 openwebmail.log
-rwxrwxrwx  1 root     root     2.2M Aug 28 13:57 messages
-rwxrwxrwx  1 root     root     558K Aug 28 13:56 secure
-rw-r--r--  1 root     root      14K Aug 28 13:48 dbrecover.log
drwxrwxrwx  2 root     root     4.0K Aug 28 13:13 admserv
-rw-rw-r--  1 root     utmp     1.3M Aug 28 13:10 wtmp
-rw-r--r--  1 root     root     2.5K Aug 28 13:10 xferlog
-rw-r--r--  1 root     root     7.3K Aug 28 13:01 ipacct
-rw-r-----  1 mysql    mysql    1.8M Aug 28 10:48 mysqld.log
-r--------  1 root     root     290K Aug 28 10:11 lastlog
-rw-r--r--  1 root     root      30K Aug 28 05:08 rpmpkgs
-rw-r--r--  1 root     root      33K Aug 28 05:08 prelink.log
-rwxrwxrwx  1 root     root     3.7M Aug 28 05:07 maillog.1.gz
-rw-r--r--  1 root     root     2.0K Aug 28 05:06 ipacct.1.gz
-rw-r--r--  1 root     root      14K Aug 28 05:06 xferlog.1.gz
drwxrwxrwx  2 root     root     4.0K Aug 28 04:13 httpd
-rw-------  1 root     root     1.2K Aug 27 17:58 boot.log
-rw-r--r--  1 root     root     4.1K Aug 27 05:12 dbrecover.log.1.gz
drwxr-xr-x  2 tomcat4  tomcat4   20K Aug 24 05:04 tomcat5
-rw-r--r--  1 root     root        0 Aug 24 05:04 up2date
-rw-r--r--  1 root     root       20 Aug 24 05:04 up2date.1.gz
-rw-------  1 root     root     244K Aug 24 05:03 cron.1.gz
-rw-------  1 root     root      515 Aug 24 05:03 boot.log.1.gz
-rwxrwxrwx  1 root     root     644K Aug 24 05:03 messages.1.gz
-rw-------  1 root     root        0 Aug 24 05:03 spooler
-rw-------  1 root     root       20 Aug 24 05:03 spooler.1.gz
-rw-r--r--  1 root     root     7.7K Aug 24 05:03 rpmpkgs.1.gz
drwxr-xr-x  2 clamav   clamav   4.0K Aug 24 05:02 clamav
drwxr-xr-x  2 lp       sys      4.0K Aug 24 05:02 cups
-rw-rw----  1 root     mail     924K Aug 24 04:48 openwebmail.log.1
-rw-rw----  1 root     mail     788K Aug 17 04:48 openwebmail.log.2
-rw-r--r--  1 root     root     4.0K Aug 16 05:07 dbrecover.log.2.gz
-rw-r-----  1 root     root     3.7K Aug  1 19:26 acpid
-rw-r--r--  1 root     root      16K Aug  1 19:24 dmesg
-rw-rw-r--  1 root     utmp      48K Aug  1 04:58 wtmp.1.gz
-rw-r--r--  1 root     root        0 Jul 21 21:25 error_log.1.gz
-rw-r--r--  1 root     root        0 Jul 21 21:25 error_log
-rw-r--r--  1 root     root        0 Jul 20 12:15 maillot
-rw-------  1 root     root        0 May 16 08:19 yum.log
-rw-r--r--  1 root     root     6.8K May 16 08:19 yum.log.1.gz
-rwx------  1 postgres postgres    0 May 15 22:58 pgsql
-rw-------  1 root     root        0 Apr 26 22:42 maillog.4
-rw-------  1 root     root        0 Apr 26 22:42 cron.4
-rw-------  1 root     root        0 Apr 26 22:42 cron.3
-rw-------  1 root     root        0 Apr 26 22:42 cron.2
drwxr-x---  2 squid    squid    4.0K Apr 10 08:10 squid
-rw-r--r--  1 root     root      23K Mar 26 09:01 ipacct.2
-rw-r--r--  1 root     root      16K Mar 25 08:01 ipacct.3
-rw-r--r--  1 root     root      29K Mar 24 15:01 ipacct.4
-rw-------  1 root     root     1.5K Mar 16 12:09 boot.log.2
-rw-r--r--  1 root     root      29K Mar 15 09:38 rpmpkgs.2
-rw-r--r--  1 root     root        0 Mar  9 15:29 up2date.2
-rw-------  1 root     root     3.6K Mar  9 15:27 boot.log.3
-rw-r--r--  1 root     root      29K Mar  8 08:15 rpmpkgs.3
-rw-r--r--  1 root     root        0 Mar  2 14:40 up2date.3
-rw-------  1 root     root      25K Mar  2 14:39 boot.log.4
-rw-r--r--  1 root     root      29K Mar  1 08:43 rpmpkgs.4
-rw-r--r--  1 root     root        0 Feb 24  2008 up2date.4
-rw-r--r--  1 root     root        0 Jan  8  2008 mysql.log
drwxrwxrwx  2 root     root     4.0K Dec 11  2007 samba
drwxrwxrwx  2 root     root     4.0K Nov 26  2007 audit
drwxr-xr-x  2 root     root     4.0K Jan 31  2007 mail
-rw-------  1 root     root      24K Jan 31  2007 anaconda.log
-rw-------  1 root     root      18K Jan 31  2007 anaconda.syslog
-rw-------  1 root     root      42K Jan 31  2007 anaconda.xlog
drwxrwxrwx  2 root     root     4.0K Jun 25  2006 proftpd
drwxr-xr-x  2 root     root     4.0K Feb 21  2005 vbox
drwxrwxrwx  2 root     root     4.0K Feb 21  2005 ppp

# 10  
Old 08-28-2008
Search if there are any files greater than 50M and post output here...

Code:
find /var -type f -xdev -size +50000000c

If there are none reduce the size to say 10M and try again. Obtain a list of the big files under the /var filesystem.
Do you have lsof on this system? With lsof you maybe able to narrow down your search.
# 11  
Old 08-28-2008
Check you mysql databases and logs

/var/lib/mysql/
# 12  
Old 08-29-2008
Code:
# find /var -type f -xdev -size +50000000c
/var/lib/mysql/mailscanner/maillog.MYD
/var/lib/mysql/mailscanner/mtalog.MYD
/var/lib/mysql/timmartin/page_stats.MYD
/var/lib/mysql/glenntoyota/page_stats.MYD
/var/lib/mysql/barts/page_stats.MYD
/var/lib/mysql/michianaautomall/vehicle_manager.MYD
/var/lib/mysql/mikeanderson/page_stats.MYD

looks like these mysql files are the biggest but Im not sure if its ok to reduce these or what. I know this server does alot of php database callups for the various websites we host.
# 13  
Old 08-29-2008
Quote:
Originally Posted by mcraul
Code:
# find /var -type f -xdev -size +50000000c
/var/lib/mysql/mailscanner/maillog.MYD
/var/lib/mysql/mailscanner/mtalog.MYD
/var/lib/mysql/timmartin/page_stats.MYD
/var/lib/mysql/glenntoyota/page_stats.MYD
/var/lib/mysql/barts/page_stats.MYD
/var/lib/mysql/michianaautomall/vehicle_manager.MYD
/var/lib/mysql/mikeanderson/page_stats.MYD

looks like these mysql files are the biggest but Im not sure if its ok to reduce these or what. I know this server does alot of php database callups for the various websites we host.
Never worked with MySQL but Googling it shows that each of the MYD files corresponds to a table in the database...so removing them is not a good idea. Try allocating more space to /var and setup database archiving so that partition does not fillup so fast.
# 14  
Old 08-29-2008
ok how do i go about assigning more memory to /var without totally reinstalling the OS?
btw this is a centos 4.x box
 
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