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Stewart Dean

2007-May-30 16:46 UTC

[Dovecot] AIX mail quota plugin problems

From reading the wiki for a filesystem quota, I took my shot at
1) building my binaries using the mods in AIXPluginsSupport
2) changing dovecot.conf and
3) putting the plugins in the library
But I'm getting this error message when I invoke dovecot:

Plugin imap_quota not found from directory /usr/local/lib/dovecot
Error: imap dump-capability process returned 89

It would seem that
a) I have the syntax or the parameters wrong
b) I didn't get the changes to the AIX build environment right

I've attached the dovecot -n output.

Here are the details of what I did.

1) dovecot.conf

  =========== within the imap config section ==========   # Support for
dynamically loadable plugins. mail_plugins is a space
separated
   # list of plugins to load.
   #mail_plugins    #mail_plugin_dir = /usr/lib/dovecot/imap
   # SD 5/24/07 tryout FS quota plugin
   mail_plugins = quota imap_quota
   mail_plugin_dir = /usr/local/lib/dovecot/imap


plugin {
   # Here you can give some extra environment variables to mail processes.
   # This is mostly meant for passing parameters to plugins. %variable
   # expansion is done for all values.

   # Quota plugin. Multiple backends are supported:
   #   dirsize: Find and sum all the files found from mail directory.
   #            Extremely SLOW with Maildir. It'll eat your CPU and disk 
I/O.
   #   dict: Keep quota stored in dictionary (eg. SQL)
   #   maildir: Maildir++ quota
   #   fs: Read-only support for filesystem quota
   #quota = maildir
   # SD 5/24/07 Try FS quota support
   quota = fs

I've tried it as both

mail_plugin_dir = /usr/local/lib/dovecot/imap

and

mail_plugin_dir = /usr/local/lib/dovecot

2) Both ways I see this error message:> 4229 root at mercury:/usr/local/etc ## dovecot
> ILoading modules from directory: /usr/local/lib/dovecot
> IModule loaded: /usr/local/lib/dovecot/lib10_quota_plugin.so
> FPlugin imap_quota not found from directory /usr/local/lib/dovecot
> Error: imap dump-capability process returned 89
>
> 4272 root at mercury:/usr/local/lib/dovecot/imap ## dovecot
> ILoading modules from directory: /usr/local/lib/dovecot/imap
> IModule loaded: /usr/local/lib/dovecot/imap/lib10_quota_plugin.so
> FPlugin imap_quota not found from directory /usr/local/lib/dovecot/imap
> Error: imap dump-capability process returned 89
>   3) These directories have the following contents:

4292 root at mercury:/usr/local/lib/dovecot ## ls -al
total 1168
drwxr-xr-x   3 root     system          512 May 24 12:36 ./
drwxr-xr-x   7 root     system          512 May 21 14:31 ../
-rw-r--r--   1 root     sys          292522 May 22 15:12 
052207-1455-64bit-ssl.lib10_quota_plugin.a
-rwxr-xr-x   1 root     sys             904 May 22 15:12 
052207-1455-64bit-ssl.lib10_quota_plugin.la*
-rwxr-xr-x   1 root     sys          270499 May 22 15:12 
052207-1455-64bit-ssl.lib10_quota_plugin.so*
drwxr-xr-x   2 root     system          512 May 24 12:41 imap/
lrwxrwxrwx   1 root     system           65 May 24 12:36 
lib10_quota_plugin.a@ -> /usr/local/lib/dovecot/052207-1
455-64bit-ssl.lib10_quota_plugin.a
lrwxrwxrwx   1 root     system           66 May 24 12:36 
lib10_quota_plugin.la@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.la*
lrwxrwxrwx   1 root     system           66 May 24 12:36 
lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.so*

root at mercury:/usr/local/lib/dovecot/imap ## ls -al
total 152
drwxr-xr-x   2 root     system          512 May 24 12:41 ./
drwxr-xr-x   3 root     system          512 May 24 12:36 ../
-rw-r--r--   1 root     system        19250 May 22 15:12 
052207-1455-64bit-ssl.lib11_imap_quota_plugin.a
-rwxr-xr-x   1 root     system          944 May 22 15:12 
052207-1455-64bit-ssl.lib11_imap_quota_plugin.la*
-rwxr-xr-x   1 root     system        28645 May 22 15:12 
052207-1455-64bit-ssl.lib11_imap_quota_plugin.so*
lrwxrwxrwx   1 root     system           66 May 24 12:36 
lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.so*
lrwxrwxrwx   1 root     system           75 May 24 12:36 
lib11_imap_quota_plugin.a@ -> /usr/local/lib/dovecot/ima
p/052207-1455-64bit-ssl.lib11_imap_quota_plugin.a
lrwxrwxrwx   1 root     system           76 May 24 12:36 
lib11_imap_quota_plugin.la@ -> /usr/local/lib/dovecot/im
ap/052207-1455-64bit-ssl.lib11_imap_quota_plugin.la*
lrwxrwxrwx   1 root     system           76 May 24 12:36 
lib11_imap_quota_plugins.so@ -> /usr/local/lib/dovecot/i

Any suggestions?

-- 
===Stewart Dean, Unix System Admin, Henderson Computer Resources
Center of Bard College, Annandale-on-Hudson, New York  12504
sdean at bard.edu  voice: 845-758-7475, fax: 845-758-7035


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Timo Sirainen

2007-Jun-04 01:53 UTC

head link

[Dovecot] AIX mail quota plugin problems

On Wed, 2007-05-30 at 12:46 -0400, Stewart Dean wrote:> > 4272 root at mercury:/usr/local/lib/dovecot/imap ## dovecot
> > ILoading modules from directory: /usr/local/lib/dovecot/imap
> > IModule loaded: /usr/local/lib/dovecot/imap/lib10_quota_plugin.so
> > FPlugin imap_quota not found from directory
/usr/local/lib/dovecot/imap
> > Error: imap dump-capability process returned 89
quota is loaded OK, imap_quota isn't.
> root at mercury:/usr/local/lib/dovecot/imap ## ls -al
..> -rwxr-xr-x   1 root     system        28645 May 22 15:12 
> 052207-1455-64bit-ssl.lib11_imap_quota_plugin.so*
So it should be loading this.
> lrwxrwxrwx   1 root     system           76 May 24 12:36 
> lib11_imap_quota_plugins.so@ -> /usr/local/lib/dovecot/i
Why is it "plugins"? It should be "plugin".

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Stewart Dean

2007-Jun-05 16:15 UTC

head link

[Dovecot] AIX mail quota plugin problems + dotlock problem resolved

Duh.  Egg all over my face, for missing such a simple thing as a 
misspelled word.  OK.

Incidentally, I have found and resolved the dotlock problem.  Nothing to 
do with NFS, rather there was some legacy (something my predecessor had 
set up 10 years ago or more) instructions in the .procmailrc file that 
were trashing the locks;
 details to follow.

Anway, I corrected the misspelled filename, and Dovecot now loads 
successfully with the fs quota plugin...but that then fails...
Please again, your help...hopefully, this is not as elementary as a 
misspelled filename, but just as quickly fixable with your eagle eye.  
Again this is AIX; FWIW, what Ralf does doesn't use fs quota, so this is 
new territory.  There is a trace attached.
Here it goes:

I start DC under truss
truss -d -f -t !_poll dovecot > /tmp/dovecot.truss.out  2>&1

in maillog, I see:
=====================================Jun  5 11:31:38 mercury mail:info dovecot:
Dovecot v1.0.0 starting up

Draves does some stuff:

Jun  5 11:32:56 mercury mail:info dovecot: auth(default): client out: OK       
1       user=draves
Jun  5 11:32:56 mercury mail:info dovecot: auth(default): master in: REQUEST   
1       851978  1
Jun  5 11:32:56 mercury mail:info dovecot: auth(default):
passwd(draves,10.20.30.14): lookup
Jun  5 11:32:56 mercury mail:info dovecot: auth(default): master out: USER     
1       draves  system_user=draves      uid=220 gid=20
0       home=/home/hcrc/draves
Jun  5 11:32:56 mercury mail:info dovecot: imap-login: Login:
user=<draves>, method=PLAIN, rip=10.20.30.14, lip=192.246.229.21, TLS
Jun  5 11:32:56 mercury mail:info dovecot: IMAP(draves): Loading modules from
directory: /usr/local/lib/dovecot/imap
Jun  5 11:32:56 mercury mail:info dovecot: IMAP(draves): Module loaded:
/usr/local/lib/dovecot/imap/lib10_quota_plugin.so
Jun  5 11:32:56 mercury mail:info dovecot: IMAP(draves): Module loaded:
/usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): Effective uid=220,
gid=200, home=/home/hcrc/draves
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): mbox:
data=/home/hcrc/draves/mail:INBOX=/var/spool/mail/draves:INDEX=/var/dcn
dx/draves
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): mbox:
root=/home/hcrc/draves/mail, index=/var/dcndx/draves, inbox=/var/spool/
mail/draves
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): fs quota add storage
dir = /home/hcrc/draves/mail
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): fs quota block device =
/dev/hd4
Jun  5 11:32:57 mercury mail:info dovecot: IMAP(draves): fs quota mount point =
/
Jun  5 11:32:58 mercury mail:err|error dovecot: IMAP(draves):
quotactl(Q_GETQUOTA, /) failed: Invalid argument

This is 1:20 or 80 seconds after the start of DC and about line 11982 in the
trace file

I (sdean) do some stuff:

Jun  5 11:33:05 mercury mail:info dovecot: auth(default): client out: OK       
1       user=sdean
Jun  5 11:33:05 mercury mail:info dovecot: auth(default): master in: REQUEST   
2       1351756 1
Jun  5 11:33:05 mercury mail:info dovecot: auth(default):
passwd(sdean,10.20.10.75): lookup
Jun  5 11:33:05 mercury mail:info dovecot: auth(default): master out: USER     
2       sdean   system_user=sdean       uid=202 gid=20
0       home=/home/hcrc/sdean
Jun  5 11:33:05 mercury mail:info dovecot: imap-login: Login:
user=<sdean>, method=PLAIN, rip=10.20.10.75, lip=192.246.229.21, TLS
Jun  5 11:33:05 mercury mail:info dovecot: IMAP(sdean): Loading modules from
directory: /usr/local/lib/dovecot/imap
Jun  5 11:33:05 mercury mail:info dovecot: IMAP(sdean): Module loaded:
/usr/local/lib/dovecot/imap/lib10_quota_plugin.so
Jun  5 11:33:05 mercury mail:info dovecot: IMAP(sdean): Module loaded:
/usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): Effective uid=202,
gid=200, home=/home/hcrc/sdean
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): mbox:
data=/home/hcrc/sdean/mail:INBOX=/var/spool/mail/sdean:INDEX=/var/dcndx/
sdean
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): mbox:
root=/home/hcrc/sdean/mail, index=/var/dcndx/sdean, inbox=/var/spool/mai
l/sdean
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): fs quota add storage dir
= /home/hcrc/sdean/mail
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): fs quota block device =
/dev/hd4
Jun  5 11:33:06 mercury mail:info dovecot: IMAP(sdean): fs quota mount point = /
Jun  5 11:33:06 mercury mail:err|error dovecot: IMAP(sdean):
quotactl(Q_GETQUOTA, /) failed: Invalid argument

This is 1:28 or 88 seconds after the start of DC and about line 23478 in the
trace file

=====================================
In syslog, the same stuff:

4220 root at mercury:/var/log ## tail -f syslog | grep dovecot
Jun  5 11:32:58 mercury mail:err|error dovecot: IMAP(draves):
quotactl(Q_GETQUOTA, /) failed: Invalid argument
Jun  5 11:33:06 mercury mail:err|error dovecot: IMAP(sdean):
quotactl(Q_GETQUOTA, /) failed: Invalid argument
=====================================

Compressed trace file attached.........

Thanks in advance.

Timo Sirainen wrote:>
> Why is it "plugins"? It should be "plugin".
>   
-- 
===Stewart Dean, Unix System Admin, Henderson Computer Resources 
Center of Bard College, Annandale-on-Hudson, New York  12504  
sdean at bard.edu  voice: 845-758-7475, fax: 845-758-7035

Timo Sirainen

2007-Jun-05 18:06 UTC

head link

[Dovecot] AIX mail quota plugin problems + dotlock problem resolved

On Tue, 2007-06-05 at 12:30 -0400, Stewart Dean wrote:> quotactl(Q_GETQUOTA, /) failed: Invalid argument
So apparently this quotactl() call is wrong with AIX:

	if (quotactl(root->mount->mount_path, QCMD(Q_GETQUOTA, USRQUOTA),
		     root->uid, (void *)&dqblk) < 0) {

I don't know why though. You could try changing
root->mount->mount_path
to some actual mbox file path to see if it returns errors then.

Except weren't your mailboxes NFS mounted? quotactl() doesn't work for
NFS mounts at all. For NFS you could try this instead
http://dovecot.org/patches/quota-rquotad.c

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Stewart Dean

2007-Jun-05 18:29 UTC

head link

[Dovecot] AIX mail quota plugin problems + dotlock problem resolved

1) The AIX quotactl subroutine is defined here....(put it in the search box)
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp
Partial cut and paste of it:> *#include <jfs/quota.h>*
>
> *int quotactl (*/Path/*,*/ Cmd/*,*/ ID/*,*/ Addr/*)*
> *int*  /Cmd/ 
>
<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.basetechref/doc/basetrf2/quotactl.htm#a2qk21b0bob>*,*
/ID/
>
<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.basetechref/doc/basetrf2/quotactl.htm#bqk2d0bob>*;*
> *char ** /Addr/ 
>
<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.basetechref/doc/basetrf2/quotactl.htm#oqk2310bob>*,
> ** /Path/ 
>
<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.basetechref/doc/basetrf2/quotactl.htm#xpk2250bob>*;*
>
>
>       Description
>
> The *quotactl* subroutine enables, disables, and manipulates disk 
> quotas for file systems on which quotas have been enabled.
>
> On AIX, disk quotas are supported by the legacy Journaled File System 
> (JFS) and the enhanced Journaled File System (JFS2).
>
> The /Cmd/ parameter is constructed through use of the 
> *QCMD(*/Qcmd/*,*/ type/*)* macro contained within the 
> *sys/fs/quota_common.h* file. The /Qcmd/ parameter specifies the quota 
> control command. The /type/ parameter specifies either user 
> (*USRQUOTA*) or group (*GRPQUOTA*) quota type.
>
> The valid values for the /Cmd/ parameter in all supported file system 
> types sare:
>
> *Q_QUOTAON*
>     Enables disk quotas for the file system specified by the /Path/
>     parameter. The /Addr/ parameter specifies a file from which to
>     take the quotas. The quota file must exist; it is normally created
>     with the *quotacheck*
>    
<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.cmds/doc/aixcmds4/quotacheck.htm#a84c12e>
>     command. The /ID/ parameter is unused. Root user authority is
>     required to enable quotas. By specifying the new quota file path
>     in the /Addr/ parameter, the *quotactl* command can also be used
>     to change the quota file that is being used without first
>     disabling disk quotas. 
> *Q_QUOTAOFF*
>     Disables disk quotas for the file system specified by the /Path/
>     parameter. The /Addr/ and /ID/ arguments are unused. Root user
>     authority is required to disable quotas. 
>
> Additional JFS specific values for the /Cmd/ parameter are as follows:
>
> *Q_GETQUOTA*
>     Gets disk quota limits and current usage for a user or group
>     specified by the /ID/ parameter. The /Addr/ parameter points to a
>     *dqblk* buffer to hold the returned information. The *dqblk*
>     structure is defined in the *jfs/quota.h* file. Root user
>     authority is required if the /ID/ value is not the current ID of
>     the caller.
>Did the trace hold any more information?  Note that I didn't attach it 
the first time I sent it to you, the second time I did.  I also resent 
the note with the trace attached to mailing list, but the mailman 
software said it was too big, so I canceled the second post.

2) No, nothing is remote here:
1) dovecot is running here on mercury
2) mercury is where all the inboxes and home/folder dirs physically reside
3) These /are/ exported to other machines by mercury.
4) The quotaing is running on here mercury itself as part of O/S and 
FSes; it is enabled during boot
5) rquotad runs to provide quota info to the remote machines where the 
inboxes and home/folder dirs are NFS client imported and mounted


Timo Sirainen wrote:> On Tue, 2007-06-05 at 12:30 -0400, Stewart Dean wrote:
>   
>> quotactl(Q_GETQUOTA, /) failed: Invalid argument
>>     
>
> So apparently this quotactl() call is wrong with AIX:
>
> 	if (quotactl(root->mount->mount_path, QCMD(Q_GETQUOTA, USRQUOTA),
> 		     root->uid, (void *)&dqblk) < 0) {
>
> I don't know why though. You could try changing
root->mount->mount_path
> to some actual mbox file path to see if it returns errors then.
>
> Except weren't your mailboxes NFS mounted? quotactl() doesn't work
for
> NFS mounts at all. For NFS you could try this instead
> http://dovecot.org/patches/quota-rquotad.c
>
>   
-- 
===Stewart Dean, Unix System Admin, Henderson Computer Resources 
Center of Bard College, Annandale-on-Hudson, New York  12504  
sdean at bard.edu  voice: 845-758-7475, fax: 845-758-7035

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