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MyFault
Asked: 2015-11-24 00:54:01 +0800 CST

service apache2 restart leads to "Error: No space left on device"

  • 772

If I do 

me@server:/home/me# service apache2 restart

on my LXC-VPS (node-server is not under heavy load) I'm getting 

Error: No space left on device

df -h tells me that there is plenty enough space

/dev/loop1      394G     72G  303G   20% /
none            100K       0  100K    0% /dev
cgroup           12K       0   12K    0% /sys/fs/cgroup
tmpfs            63G       0   63G    0% /sys/fs/cgroup/cgmanager
tmpfs            63G       0   63G    0% /dev/shm
tmpfs            63G    903M   63G    2% /run
tmpfs           5,0M       0  5,0M    0% /run/lock
tmpfs            63G    9,0M   63G    1% /tmp
none             63G       0   63G    0% /run/shm

df -i tells me

Dateisystem      Inodes IBenutzt    IFrei IUse% Eingehängt auf
/dev/loop1     26214400  1947464 24266936    8% /
none           16488053       22 16488031    1% /dev
cgroup         16488053       16 16488037    1% /sys/fs/cgroup
tmpfs          16488053       17 16488036    1% /sys/fs/cgroup/cgmanager
tmpfs          16488053        1 16488052    1% /dev/shm
tmpfs          16488053      269 16487784    1% /run
tmpfs          16488053     1069 16486984    1% /run/lock
tmpfs          16488053      192 16487861    1% /tmp
none           16488053        1 16488052    1% /run/shm

This is the output of ipcs

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages    

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x4f3f00ec 9928704    root       600        1000       3                       
0x640109b7 9961473    root       600        1200712    3                       
0x0004e7b0 9437186    root       666        20564      0                       

------ Semaphore Arrays --------
key        semid      owner      perms      nsems     
0x002fa327 0          root       666        2         
0x00000000 9535489    www-data   600        1         
0x00000000 9568258    www-data   600        1         
0x7f9640a9 4096003    ftp_ase    644        3         
0x3780350e 4456452    ftp_sur    644        3

Any idea how to avoid this error?

linux

3 Answers

  1. You can see this where apache is using IPC semaphores, probably from a apache module.

    If it crashes it wont clean up the semaphore which remains permanently assigned to the system at least until a reboot.

    Run ipcs and you'll probably see a lot of stuff owned by apache in there.

    You can use the ipcrm command to clear it up.

    • 3

  2. You probably have a lot of small files and ran out of inodes (the structures that store a file metadata). If this is the case, you need to delete these files to free up space.

    You can check the inode use via the command df -i.

    • 0

  3. Not sure about the error but it seems you are not using root user to restart service. Have you tried restarting apache2 with root user? What is the result?

    • 0