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#1 2013-03-21 18:19:32

clovenhoof
Member
From: Bulgaria
Registered: 2010-09-16
Posts: 82

High hard disk activity caused by systemd-tmpfile

Hi

I have home server PC running pure, console Archlinux on it 24/7. It works fine for about 3 years and still do, but after systemd transition I noticed that my server periodically runs systemd-tmpfile daemon which causes intensive and continuous hard disk activity.
My /etc/tmpfiles.d is empty, but here is the content of /usr/lib/tmpfiles.d folder:

-rw-r--r--   1 root root     30 Sep 20  2012 apache.conf
-rw-r--r--   1 root root     30 Jan 13 17:58 console.conf
-rw-r--r--   1 root root     19 Jan 27 06:41 lastlog.conf
-rw-r--r--   1 root root   1146 Jan 13 17:58 legacy.conf
-rw-r--r--   1 root root     29 Feb  5 11:09 lirc.conf
-rw-r--r--   1 root root     24 Mar  5 12:57 mpd.conf
-rw-r--r--   1 root root     33 Feb 25 19:41 mysqld.conf
-rw-r--r--   1 root root     27 Jan 27 09:09 nscd.conf
-rw-r--r--   1 root root     51 Feb 25 17:32 samba.conf
-rw-r--r--   1 root root     36 Oct 13 19:30 saslauthd.conf
-rw-r--r--   1 root root     33 Dec 21 16:39 svnserve.conf
-rw-r--r--   1 root root    736 Jan 13 17:58 systemd.conf
-rw-r--r--   1 root root    449 Jan 13 17:58 tmp.conf
-rw-r--r--   1 root root     30 Dec 13 15:24 uuidd.conf
-rw-r--r--   1 root root    622 Jan 13 17:58 x11.conf


My question is how to know which *.conf file causes such a high HDD activity or how to resolve the problem at all?

Last edited by clovenhoof (2013-03-21 18:20:26)

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#2 2013-03-21 19:01:53

lucke
Member
From: Poland
Registered: 2004-11-30
Posts: 4,018

Re: High hard disk activity caused by systemd-tmpfile

Perhaps "lsof -c systemd-tmpfiles" run during that activity would show what files it is working on.

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#3 2013-03-21 19:51:05

clovenhoof
Member
From: Bulgaria
Registered: 2010-09-16
Posts: 82

Re: High hard disk activity caused by systemd-tmpfile

Ok here is what get with "lsof -c systemd-tmpfile" during this activity:

COMMAND    PID USER   FD   TYPE             DEVICE SIZE/OFF    NODE NAME
systemd-t 1069 root  cwd    DIR                8,3     4096       2 /
systemd-t 1069 root  rtd    DIR                8,3     4096       2 /
systemd-t 1069 root  txt    REG                8,3    59504  290840 /usr/bin/systemd-tmpfiles
systemd-t 1069 root  mem    REG                8,3    52144  262523 /usr/lib/libnss_files-2.17.so
systemd-t 1069 root  mem    REG                8,3   138206  262495 /usr/lib/libpthread-2.17.so
systemd-t 1069 root  mem    REG                8,3    18760  277530 /usr/lib/libattr.so.1.1.0
systemd-t 1069 root  mem    REG                8,3  2035539  262449 /usr/lib/libc-2.17.so
systemd-t 1069 root  mem    REG                8,3    31744  262453 /usr/lib/librt-2.17.so
systemd-t 1069 root  mem    REG                8,3    16776  299945 /usr/lib/libcap.so.2.22
systemd-t 1069 root  mem    REG                8,3   165436  262497 /usr/lib/ld-2.17.so
systemd-t 1069 root    0r   CHR                1,3      0t0    6461 /dev/null
systemd-t 1069 root    1u  unix 0xffff8801393df1c0      0t0   23160 socket
systemd-t 1069 root    2u  unix 0xffff8801393df1c0      0t0   23160 socket
systemd-t 1069 root    3u  unix 0xffff8801393dba80      0t0   23161 socket
systemd-t 1069 root    4r   DIR                8,3  9482240 1970431 /var/tmp
systemd-t 1069 root    5r   DIR                8,3     4096  793638 /var/tmp/systemd-private-G25Rag

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#4 2013-03-21 19:58:24

lucke
Member
From: Poland
Registered: 2004-11-30
Posts: 4,018

Re: High hard disk activity caused by systemd-tmpfile

Doesn't really reveal anything.

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#5 2013-03-21 20:07:48

clovenhoof
Member
From: Bulgaria
Registered: 2010-09-16
Posts: 82

Re: High hard disk activity caused by systemd-tmpfile

Uhaa, I have just executed " ls -1 /var/tmp/ | wc -l", the result is:
206926 (directories) !!

The names are kind of - "systemd-private-zzoypq"

I cannot understand what happened here?

PS: I cannot even delete them at once:
$ sudo rm -rf systemd-private-*
-bash: /usr/bin/sudo: Argument list too long

Last edited by clovenhoof (2013-03-21 20:40:39)

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#6 2013-03-21 20:50:00

clovenhoof
Member
From: Bulgaria
Registered: 2010-09-16
Posts: 82

Re: High hard disk activity caused by systemd-tmpfile

I just deleted all these directories, but they are slowly appearing again.
It is funny for me?!

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#7 2013-03-21 21:06:42

clovenhoof
Member
From: Bulgaria
Registered: 2010-09-16
Posts: 82

Re: High hard disk activity caused by systemd-tmpfile

I just checked size of my "journal" 4.1G with limit of 100M, so then I found that my problem is the same as https://bbs.archlinux.org/viewtopic.php?id=150052.

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