Centos /dev/sda1 partition memory issue

Hi Guys,

We have a problem with /dev/sda1 partition memory issue.

It takes about one week to be filled in 99% without reason. To fix it we just need to reboot server and memory usage back to about 35%.

Total space at this partition is 9.9G.

 /dev/sda1             9.9G  9.9G     0 100% /
 /dev/sdb              414G  199M  393G   1% /mnt
 /dev/sdf              197G   35G  153G  19% /mnt/mysql
 /dev/sdg               99G   73G   22G  78% /mnt/solr
 none                  3.8G     0  3.8G   0% /dev/shm

Please advise,

cheers

From serverfault $pageUsers[$entry.posts[0].author].name

• what's /dev/sda1 used for? If it's for /var or for '/' which holds /var, you might have logs overflowing, or mailboxes not being cleaned out

  From dyasny

• Once it has filled, can you, from /, run the command du -h --max-depth=1 This will give you a listing by directory of where the space is being used. Then can you go into the folder which is taking up the most space (/var at a guess) and then do the same. You should be able to figure out where the space is going. I presume this is going to be logs/mail- depending on what the server role is.

  From AliGibbs

• You have a file that is being deleted, but not closed by the process that created it. Before you do a reboot, do the following as root:

  lsof | grep deleted
  

  You should find some file that is being deleted, but because the process that created it hasn't closed it, the space is still being used.

  Trevor Harrison : +1: or /tmp is filling up and a init script empties it during startup.
  From Kevin M