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Full Discussion: sendmail -q hangs
Top Forums UNIX for Advanced & Expert Users sendmail -q hangs Post 85277 by RTM on Tuesday 4th of October 2005 09:14:18 AM
Old 10-04-2005
Quote:
I have a system where sendmail deamon not running.
That is a good thing - sendmail shouldn't be running on most servers (security issue)

Quote:
But I have whole lot of sendmail processes started-up by cron process, eating up its CPU resources.
Probably because when sendmail isn't running, some folks have found that their email gets stuck on the server for one reason or another - so they schedule a cron job to push the email out.

Quote:
When I tried to startup the deamon as used in the cron executable like:"/usr/lib/sendmail -q" I get errors: (see below)
# /usr/lib/sendmail -q
hash map "Alias0": missing map file /etc/aliases.db: No such file or directory
dbm map "Alias0": missing map file /etc/aliases
Operating system error
Operating system error
Then your sendmail isn't set up correctly - it isn't finding all the files it should - the aliases and aliases.db should be links from /etc to /etc/mail on Solaris 8.
Try running the following to see if any other errors are present (your output will be different - this one shows no errors):
$ /usr/lib/sendmail -d0.1 -bt < /dev/null

Version 8.13.4
Compiled with: DNSMAP HESIOD HES_GETMAILHOST LDAPMAP LOG MAP_REGEX
MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6
NETUNIX NEWDB NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS
TCPWRAPPERS USERDB USE_LDAP_INIT

============ SYSTEM IDENTITY (after readcf) ============
(short domain name) $w = localhost
(canonical domain name) $j = localhost.localdomain
(subdomain name) $m = localdomain
(node name) $k = localhost.localdomain
========================================================

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>



Quote:
But If I run the command like this: "/usr/lib/sendmail -q15m", then it works fine.
I believe it doesn't run fine - it's just waiting 15 minutes and then would have the same error as the others that run immediately.

Quote:
1. How to get rid of following type of processes:
Your real problem is to fix the issues with sendmail. Then the cron jobs should start working.
 

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aliasadm(1M)						  System Administration Commands					      aliasadm(1M)

NAME
aliasadm - manipulate the NIS+ aliases map SYNOPSIS
aliasadm -a alias expansion [options comments] optional flags aliasadm -c alias expansion [ options comments] [ optional flags] aliasadm -d alias [ optional flags] aliasadm -e alias [ optional flags] aliasadm -l alias [ optional flags] aliasadm -m alias [ optional flags] aliasadm [-I] [-D domainname] [-f filename] [-M mapname] DESCRIPTION
aliasadm makes changes to the alias map. The alias map is an NIS+ table object with four columns: alias The name of the alias as a null terminated string. expansion The value of the alias as it would appear in a sendmail /etc/aliases file. options A list of options applicable to this alias. The only option currently supported is CANON. With this option, if the user has requested an inverse alias lookup, and there is more than one alias with this expansion, this alias is given prefer- ence. comments An arbitrary string containing comments about this alias. The sendmail(1M) command reads this map in addition to the NIS aliases map and the local /etc/aliases database. OPTIONS
-a Add an alias. -c Change an alias. -d Delete an alias. -e Edit the alias map. -I Initialize the NIS+ aliases database. -l List the alias map. -m Print or match an alias. -D domainname Edit the map in domain domainname instead of the current domain. -f filename When editing or listing the database, use filename instead of invoking the editor. -M mapname Edit mapname instead of mail_aliases. FILES
/etc/aliases mail aliases for the local host in ASCII format ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWnisu | +-----------------------------+-----------------------------+ SEE ALSO
sendmail(1M), attributes(5) NOTES
NIS+ might not be supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from NIS+ to LDAP are available in the Solaris 9 operating environment. For more information, visit http://www.sun.com/directory/nisplus/transition.html. SunOS 5.10 12 Dec 2001 aliasadm(1M)
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