Bug Tracker item #2842529, was opened at 2009-08-22 12:53
Message generated for change (Comment added) made by sbajic
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Category: daemon
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Julien Valroff (valroff)
Assigned to: Nobody/Anonymous (nobody)
Summary: PID file not re-created on SIGHUP
Initial Comment:
When sending a SIGHUP to dspam daemon, the PID file is not re-created if the
ServerPID configuration option is set in dspam.conf.
When running dspam daemon as non-privileged user, dspam log shows an error when
creating the PID file:
Aug 18 16:51:53 nix dspam[5652]: Reloading configuration
Aug 18 16:51:53 nix dspam[5652]: received signal. waiting for processing
threads to exit.
Aug 18 16:51:53 nix dspam[5652]: daemon is down.
Aug 18 16:51:53 nix dspam[5652]: reloading configuration
Aug 18 16:51:53 nix dspam[5652]: Unable to open file for writing:
�"#006#010#010##006#...@##006#010: Permission denied
The file is most of the time different and it *seems* these are random portions
of the dspam.conf file.
I have been able to identify where the error comes from, it is in
dspam.c, around line 3981:
if (pidfile) {
FILE *file;
file = fopen(pidfile, "w");
if (file == NULL) {
LOG(LOG_ERR, ERR_IO_FILE_WRITE, pidfile, strerror(errno));
} else {
fprintf(file, "%ld\n", (long) getpid());
fclose(file);
}
}
Changing the value of ServerPID to something different than the default leads
to the same behaviour, but when not using the ServerPID configuration option,
everything works as expected.
I can reproduce it easily in virtual box running Debian lenny, using the latest
git code with a very basic configuration.
Cheers,
Julien
----------------------------------------------------------------------
>Comment By: Stevan Bajic (sbajic)
Date: 2009-09-25 20:43
Message:
Something strange is going on:
--------------
nyx ~ # grep -i "^Sep.*dspam.*Unable to open file for writing"
/var/log/vmail.log
Sep 25 18:48:26 nyx dspam[6617]: Unable to open file for writing:
/run/dspam/dspam.pid: No such file or directory
Sep 25 20:23:54 nyx dspam[12252]: Unable to open file for writing:
/run/dspam/dspam.pid: No such file or directory
nyx ~ # grep ^ServerPID /etc/dspam/dspam.conf
ServerPID /var/run/dspam/dspam.pid
nyx ~ # dspam --version
DSPAM Anti-Spam Suite GIT (agent/library)
Copyright (c) 2002-2009 DSPAM Project
http://dspam.sourceforge.net.
DSPAM may be copied only under the terms of the GNU General Public
License,
a copy of which can be found with the DSPAM distribution kit.
Configuration parameters: '--prefix=/usr' '--build=i686-pc-linux-gnu'
'--host=i686-pc-linux-gnu' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc'
'--localstatedir=/var/lib' '--with-storage-driver=hash_drv,mysql_drv'
'--with-dspam-home=/var/spool/dspam' '--sysconfdir=/etc/mail/dspam'
'--enable-daemon' '--disable-external-lookup' '--disable-clamav'
'--enable-large-scale' '--disable-domain-scale' '--enable-syslog'
'--disable-debug' '--disable-bnr-debug' '--disable-verbose-debug'
'--enable-long-usernames' '--with-dspam-group=dspam'
'--with-dspam-home-group=dspam' '--with-dspam-mode=2511'
'--with-logdir=/var/log/dspam' '--enable-virtual-users'
'--enable-preferences-extension' '--disable-homedir'
'--with-mysql-includes=/usr/include/mysql'
'--with-mysql-libraries=/usr/lib/mysql' 'build_alias=i686-pc-linux-gnu'
'host_alias=i686-pc-linux-gnu' 'CC=i686-pc-linux-gnu-gcc'
'CFLAGS=-march=native -O2 -pipe -fweb -frename-registers -ftree-vectorize
-floop-interchange -floop-strip-mine -floop-block -ftree-loop-optimize
-freorder-blocks-and-partition -fgcse-sm -fgcse-las
-maccumulate-outgoing-args -funswitch-loops -ftracer -fprefetch-loop-arrays
-fno-ident -fno-strict-overflow -mfpmath=sse -mmmx -msse -msse2'
'LDFLAGS=-Wl,-O1 -Wl,--add-needed -Wl,--as-needed -Wl,--hash-style=both
-Wl,--sort-common'
nyx ~ #
--------------
I have configured /var/run/dspam/dspam.pid and NOT /run/dspam/dspam.pid!
Something is ultra fishy here.
----------------------------------------------------------------------
Comment By: Julien Valroff (valroff)
Date: 2009-09-25 19:09
Message:
Sorry, I do not think I had tried SIGHUP before...
Cheers,
Julien
----------------------------------------------------------------------
Comment By: Stevan Bajic (sbajic)
Date: 2009-09-25 18:52
Message:
Really? How do you then explain this here:
----
Aug 18 16:51:53 nix dspam[5652]: Unable to open file for writing:
�"#006#010#010##006#...@##006#010: Permission denied
----
Either _ds_read_attribute is not working right and get's some garbage when
executing this here:
----
pidfile = _ds_read_attribute(agent_config, "ServerPID");
----
Or _ds_read_attribute can't read the dspam.conf.
Or something is not okay with your dspam.conf.
Okay... let me try that on my setup. OUCH! You are right. The pidfile
get's deleted but the process is still running with the old process id and
no new pidfile get's created. Hmm... I need to look into that. Did that
worked in DSPAM olde then 3.9.0?
Kind Regards from Switzerland
Stevan Bajic
----------------------------------------------------------------------
Comment By: Julien Valroff (valroff)
Date: 2009-09-25 17:47
Message:
The default one ;)
/var/run/dspam/dspam.pid
Cheers,
Julien
----------------------------------------------------------------------
Comment By: Stevan Bajic (sbajic)
Date: 2009-09-25 13:46
Message:
And what value do you have for ServerPID in your configuration?
----------------------------------------------------------------------
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