Solved: Automatically logged out

[Saim Kim]

Hello,

during some work on a backup script I suddenly got the same problem as 
described by Antonio: http://marc.info/?t=121129989300004&r=1&w=2

So, in the apache-error.log was the following error message:
[Fri Aug 08 12:37:16 2008] [error] (20014)Internal error: Cannot store 
SSL session to DBM file `/kolab/var/apache/log/ssl_scache'


I ran the strace on apache to check for errors as recommended by Alain. 
Here is an excerpt:

time(NULL)                              = 1218191836
lstat64("/kolab", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat64("/kolab/var", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat64("/kolab/var/kolab", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat64("/kolab/var/kolab/php", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
lstat64("/kolab/var/kolab/php/admin", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat64("/kolab/var/kolab/php/admin/templates_c", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat64("/kolab/var/kolab/php/admin/templates_c/%%5F^5F4^5F4F277A%%addrlistall.tpl.php", 
{st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/kolab/var/kolab/php/admin/templates_c/%%5F^5F4^5F4F277A%%addrlistall.tpl.php", 
O_RDONLY) = 16
fstat64(16, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
read(16, "", 8192)                      = 0
close(16)                               = 0
chdir("/root")                          = 0
write(15, "0\5\2\1\vB\0", 7)            = 7
shutdown(15, 2 /* send and receive */)  = 0
close(15)                               = 0
pwrite64(14, "lang|s:5:\"de_DE\";fqdnhostname|s:"..., 406, 0) = -1 
ENOSPC (No space left on device)
open("/kolab/var/apache/log/php/php-errors.log", 
O_WRONLY|O_APPEND|O_CREAT, 0644) = 15
time([1218191836])                      = 1218191836
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2295, ...}) = 0
write(15, "[08-Aug-2008 12:37:16] PHP Warni"..., 110) = -1 ENOSPC (No 
space left on device)
close(15)                               = 0
open("/kolab/var/apache/log/php/php-errors.log", 
O_WRONLY|O_APPEND|O_CREAT, 0644) = 15
time([1218191836])                      = 1218191836
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2295, ...}) = 0
write(15, "[08-Aug-2008 12:37:16] PHP Warni"..., 210) = -1 ENOSPC (No 
space left on device)
close(15)                               = 0
close(14)                               = 0
munmap(0xb4faf000, 528384)              = 0
munmap(0xb5030000, 266240)              = 0
munmap(0xb5071000, 266240)              = 0
munmap(0xb71ef000, 266240)              = 0
mmap2(NULL, 266240, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0xb71ef000
setitimer(ITIMER_PROF, {it_interval={0, 0}, it_value={0, 0}}, NULL) = 0
writev(13, 
[{"\27\3\1\1\2714.\271\2755\rw\0264\322\307!\3171`\0\360\374"..., 
3467}], 1) = 3467
write(9, "medit-134-130-26-146.una.rwth-aa"..., 118) = -1 ENOSPC (No 
space left on device)
poll([{fd=13, events=POLLIN}], 1, 15000) = 0
gettimeofday({1218191851, 879541}, NULL) = 0
writev(13, 
[{"\25\3\1\0\22\321\253\345\302{Y\302Zz\245\364\374\242\365"..., 23}], 
1) = 23
shutdown(13, 1 /* send */)              = 0
poll([{fd=13, events=POLLIN}], 1, 2000) = 0
close(13)                               = 0
read(7, 0xbfb3f537, 1)                  = -1 EAGAIN (Resource 
temporarily unavailable)
semop(229378, 0x8289f90, 1)             = 0
epoll_wait(12,

Seems to me, that it is caused when the hard drive is full? I checked 
with df and it looks indeed quite full ;-)

Dateisystem          1K-locks  Used       Available Used% Mounted to
/dev/hda1              3921404    3890332    0 100% /
tmpfs                   160952         0    160952   0% /lib/init/rw
udev                     10240        36     10204   1% /dev
tmpfs                   160952         0    160952   0% /dev/shm

And yes, after cleaning the tiny hard disk on my test system it all 
worked again :-)

Best regards,
Saim

-- 
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Dipl.-Ing. Saim Kim
Lehrstuhl fuer Medizinische Informationstechnik
Helmholtz-Institut fuer Biomedizinische Technik
RWTH Aachen
Pauwelsstr. 20, D-52074 Aachen
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Web:   http://www.medit.hia.rwth-aachen.de/
Tel:   +49-(0)241-80 23218
Fax:   +49-(0)241-80 82442
email: s.kim at hia.rwth-aachen.de
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