General discussion of the Xmail mailserver

Rittikorn L | 8 Sep 2011 10:43

Mailbox on NAS

Hello,

I would like to move XMail mailbox data to storage.
I mount nfs only domains folder to storage and copy all user folders to 
storage.
mail client can connect to server and got old Email normally

after that I check send Email to local users but no any Email receive, 
Email still remain in spool folder,
but if I send Email to outside it can send normally,

Help me please...

Regards,
Rittikorn L.
_______________________________________________
xmail mailing list
xmail <at> xmailserver.org
http://xmailserver.org/mailman/listinfo/xmail

headers

Rittikorn L | 8 Sep 2011 13:26

Re: Mailbox on NAS

Update.

If I mount MailRoot folder to storage it can work normally.
but it include spool folder, I don't want process spool folder at storage
because storage it low performance, May be if run in real environment 
will lose connection.

someone has any idea?

Regards,
Rittikorn L.

On 08/09/11 15:43, Rittikorn L wrote:
> Hello,
>
>
> I would like to move XMail mailbox data to storage.
> I mount nfs only domains folder to storage and copy all user folders 
> to storage.
> mail client can connect to server and got old Email normally
>
> after that I check send Email to local users but no any Email receive, 
> Email still remain in spool folder,
> but if I send Email to outside it can send normally,
>
> Help me please...
>
> Regards,
> Rittikorn L.
> _______________________________________________

(Continue reading)

headers

Bart Mortelmans | 8 Sep 2011 13:49

Re: Mailbox on NAS

Hi,

I'm not sure why this doesn't work, but for the performance, It might
also not be a good idea to have the domains folder and the spool folder
in different locations. I do think XMail does "move" files between those
folders, which isn't the same as copying a file and then deleting the
original  file. If both folders are on the same partition, moving a file
doesn't require actually copying its contents, it simply is linked to a
different location. If you're moving a file from one partition to an
other, this however does result in making a copy and then deleting the
original. So if most mails on your mailserver end up in a mailbox, then
it would be better to have spool and domains folder on the same partition.

In the light of this: I would be interested to know when XMail "moves"
files and when it makes a copy. I have for example read that setting the
temp-folder in memory would be a good thing to do. But if files are
"moved" in and out of the temp folder instead of being copied there,
this might not be such a good idea. Does anybody have an insight on this?

Sincerely,
Bart Mortelmans

Op 08/09/11 13:26, Rittikorn L schreef:
> Update.
>
> If I mount MailRoot folder to storage it can work normally.
> but it include spool folder, I don't want process spool folder at storage
> because storage it low performance, May be if run in real environment
> will lose connection.
>

(Continue reading)

headers

Chris Franklin | 8 Sep 2011 14:19

Re: Mailbox on NAS

I've got my temp folder in a ram drive 2.5 gigs ramdrive. And it helps a lot (we have 17 filters that each needs to view and possibly alter each message).

And while your right a slight decrease in speed due to having to copy a file. It would will be dwarfed by the speed of both the lan and nfs in he's/her's case. As it going to a nas device which in and of it self is going to be a bottleneck (poor back plans, nics, os, caching systems, etc)..

Ps. Also for anyone running dovecot moving your indexes to a ramdrive, also does wonders. And having it rebuilt the indexing on a reboot for us is a plus.

On Sep 8, 2011 8:00 AM, "Bart Mortelmans" <bart <at> bim.be> wrote:
> Hi,
>
> I'm not sure why this doesn't work, but for the performance, It might
> also not be a good idea to have the domains folder and the spool folder
> in different locations. I do think XMail does "move" files between those
> folders, which isn't the same as copying a file and then deleting the
> original file. If both folders are on the same partition, moving a file
> doesn't require actually copying its contents, it simply is linked to a
> different location. If you're moving a file from one partition to an
> other, this however does result in making a copy and then deleting the
> original. So if most mails on your mailserver end up in a mailbox, then
> it would be better to have spool and domains folder on the same partition.
>
> In the light of this: I would be interested to know when XMail "moves"
> files and when it makes a copy. I have for example read that setting the
> temp-folder in memory would be a good thing to do. But if files are
> "moved" in and out of the temp folder instead of being copied there,
> this might not be such a good idea. Does anybody have an insight on this?
>
> Sincerely,
> Bart Mortelmans
>
>
>
> Op 08/09/11 13:26, Rittikorn L schreef:
>> Update.
>>
>> If I mount MailRoot folder to storage it can work normally.
>> but it include spool folder, I don't want process spool folder at storage
>> because storage it low performance, May be if run in real environment
>> will lose connection.
>>
>> someone has any idea?
>>
>>
>> Regards,
>> Rittikorn L.
>>
>>
>> On 08/09/11 15:43, Rittikorn L wrote:
>>> Hello,
>>>
>>>
>>> I would like to move XMail mailbox data to storage.
>>> I mount nfs only domains folder to storage and copy all user folders
>>> to storage.
>>> mail client can connect to server and got old Email normally
>>>
>>> after that I check send Email to local users but no any Email
>>> receive, Email still remain in spool folder,
>>> but if I send Email to outside it can send normally,
>>>
>>> Help me please...
>>>
>>> Regards,
>>> Rittikorn L.
>>> _______________________________________________
>>> xmail mailing list
>>> xmail <at> xmailserver.org
>>> http://xmailserver.org/mailman/listinfo/xmail
>>>
>>
>> _______________________________________________
>> xmail mailing list
>> xmail <at> xmailserver.org
>> http://xmailserver.org/mailman/listinfo/xmail
>>
>
> _______________________________________________
> xmail mailing list
> xmail <at> xmailserver.org
> http://xmailserver.org/mailman/listinfo/xmail

_______________________________________________
xmail mailing list
xmail <at> xmailserver.org
http://xmailserver.org/mailman/listinfo/xmail

headers

Rittikorn L | 9 Sep 2011 04:57

Re: Mailbox on NAS

As my understanding for folder domains will use when send to local Email only, it mean for outside Email,
no need to care about domains folder. It correct?

for testing update
I try to debug XMail logs and found error when move file from

/var/MailRoot/tmp/<files name> /var/MailRoot/domains/<domain>/<user>/Maildir/new/<files name>

after more check /var/MailRoot/tmp/<files name> never receive local Email <Outside mail it Ok>, It mean from spool folder cannot move to tmp folder it correct?

Please help me to explain XMail flow for sending Email.

PS: I very sure on permission on NAS, because if I move all MailRoot to NAS everything work.

Regards,
Rittikorn L.

On 08/09/11 19:19, Chris Franklin wrote:

I've got my temp folder in a ram drive 2.5 gigs ramdrive. And it helps a lot (we have 17 filters that each needs to view and possibly alter each message).

And while your right a slight decrease in speed due to having to copy a file. It would will be dwarfed by the speed of both the lan and nfs in he's/her's case. As it going to a nas device which in and of it self is going to be a bottleneck (poor back plans, nics, os, caching systems, etc)...

Ps. Also for anyone running dovecot moving your indexes to a ramdrive, also does wonders. And having it rebuilt the indexing on a reboot for us is a plus.

On Sep 8, 2011 8:00 AM, "Bart Mortelmans" <bart <at> bim.be> wrote:
> Hi,
>
> I'm not sure why this doesn't work, but for the performance, It might
> also not be a good idea to have the domains folder and the spool folder
> in different locations. I do think XMail does "move" files between those
> folders, which isn't the same as copying a file and then deleting the
> original file. If both folders are on the same partition, moving a file
> doesn't require actually copying its contents, it simply is linked to a
> different location. If you're moving a file from one partition to an
> other, this however does result in making a copy and then deleting the
> original. So if most mails on your mailserver end up in a mailbox, then
> it would be better to have spool and domains folder on the same partition.
>
> In the light of this: I would be interested to know when XMail "moves"
> files and when it makes a copy. I have for example read that setting the
> temp-folder in memory would be a good thing to do. But if files are
> "moved" in and out of the temp folder instead of being copied there,
> this might not be such a good idea. Does anybody have an insight on this?
>
> Sincerely,
> Bart Mortelmans
>
>
>
> Op 08/09/11 13:26, Rittikorn L schreef:
>> Update.
>>
>> If I mount MailRoot folder to storage it can work normally.
>> but it include spool folder, I don't want process spool folder at storage
>> because storage it low performance, May be if run in real environment
>> will lose connection.
>>
>> someone has any idea?
>>
>>
>> Regards,
>> Rittikorn L.
>>
>>
>> On 08/09/11 15:43, Rittikorn L wrote:
>>> Hello,
>>>
>>>
>>> I would like to move XMail mailbox data to storage.
>>> I mount nfs only domains folder to storage and copy all user folders
>>> to storage.
>>> mail client can connect to server and got old Email normally
>>>
>>> after that I check send Email to local users but no any Email
>>> receive, Email still remain in spool folder,
>>> but if I send Email to outside it can send normally,
>>>
>>> Help me please...
>>>
>>> Regards,
>>> Rittikorn L.
>>> _______________________________________________
>>> xmail mailing list
>>> xmail <at> xmailserver.org
>>> http://xmailserver.org/mailman/listinfo/xmail
>>>
>>
>> _______________________________________________
>> xmail mailing list
>> xmail <at> xmailserver.org
>> http://xmailserver.org/mailman/listinfo/xmail
>>
>
> _______________________________________________
> xmail mailing list
> xmail <at> xmailserver.org
> http://xmailserver.org/mailman/listinfo/xmail

_______________________________________________ xmail mailing list xmail <at> xmailserver.org http://xmailserver.org/mailman/listinfo/xmail

_______________________________________________
xmail mailing list
xmail <at> xmailserver.org
http://xmailserver.org/mailman/listinfo/xmail

headers

fcxmail | 9 Sep 2011 09:46

Re: Mailbox on NAS

This is a know 'move' issue with mounts to/from logical high level networking file systems

The reason why this works for ramdisk mounts is because the ramdisk is a local low io dev to the system

You could try to mount from an iSCSI drive (if your nas/san support it) as the target is considered as a local harddisk ressource even if finally hosted on a different system

And Iscsi is very 'performent' compared to 'high level' network file systems like nfs, ...

Francis

-----Message d'origine-----
De : xmail-bounces <at> xmailserver.org [mailto:xmail-bounces <at> xmailserver.org]De la part de Rittikorn L
Envoyé : vendredi 9 septembre 2011 04:57
À : xmail <at> xmailserver.org
Objet : Re: [xmail] Mailbox on NAS

As my understanding for folder domains will use when send to local Email only, it mean for outside Email,
no need to care about domains folder. It correct?

for testing update
I try to debug XMail logs and found error when move file from

/var/MailRoot/tmp/<files name> /var/MailRoot/domains/<domain>/<user>/Maildir/new/<files name>

after more check /var/MailRoot/tmp/<files name> never receive local Email <Outside mail it Ok>, It mean from spool folder cannot move to tmp folder it correct?

Please help me to explain XMail flow for sending Email.

PS: I very sure on permission on NAS, because if I move all MailRoot to NAS everything work.

Regards,
Rittikorn L.

On 08/09/11 19:19, Chris Franklin wrote:

I've got my temp folder in a ram drive 2.5 gigs ramdrive. And it helps a lot (we have 17 filters that each needs to view and possibly alter each message).

And while your right a slight decrease in speed due to having to copy a file. It would will be dwarfed by the speed of both the lan and nfs in he's/her's case. As it going to a nas device which in and of it self is going to be a bottleneck (poor back plans, nics, os, caching systems, etc)...

Ps. Also for anyone running dovecot moving your indexes to a ramdrive, also does wonders. And having it rebuilt the indexing on a reboot for us is a plus.

On Sep 8, 2011 8:00 AM, "Bart Mortelmans" <bart <at> bim.be> wrote:
> Hi,
>
> I'm not sure why this doesn't work, but for the performance, It might
> also not be a good idea to have the domains folder and the spool folder
> in different locations. I do think XMail does "move" files between those
> folders, which isn't the same as copying a file and then deleting the
> original file. If both folders are on the same partition, moving a file
> doesn't require actually copying its contents, it simply is linked to a
> different location. If you're moving a file from one partition to an
> other, this however does result in making a copy and then deleting the
> original. So if most mails on your mailserver end up in a mailbox, then
> it would be better to have spool and domains folder on the same partition.
>
> In the light of this: I would be interested to know when XMail "moves"
> files and when it makes a copy. I have for example read that setting the
> temp-folder in memory would be a good thing to do. But if files are
> "moved" in and out of the temp folder instead of being copied there,
> this might not be such a good idea. Does anybody have an insight on this?
>
> Sincerely,
> Bart Mortelmans
>
>
>
> Op 08/09/11 13:26, Rittikorn L schreef:
>> Update.
>>
>> If I mount MailRoot folder to storage it can work normally.
>> but it include spool folder, I don't want process spool folder at storage
>> because storage it low performance, May be if run in real environment
>> will lose connection.
>>
>> someone has any idea?
>>
>>
>> Regards,
>> Rittikorn L.
>>
>>
>> On 08/09/11 15:43, Rittikorn L wrote:
>>> Hello,
>>>
>>>
>>> I would like to move XMail mailbox data to storage.
>>> I mount nfs only domains folder to storage and copy all user folders
>>> to storage.
>>> mail client can connect to server and got old Email normally
>>>
>>> after that I check send Email to local users but no any Email
>>> receive, Email still remain in spool folder,
>>> but if I send Email to outside it can send normally,
>>>
>>> Help me please...
>>>
>>> Regards,
>>> Rittikorn L.
>>> _______________________________________________
>>> xmail mailing list
>>> xmail <at> xmailserver.org
>>> http://xmailserver.org/mailman/listinfo/xmail
>>>
>>
>> _______________________________________________
>> xmail mailing list
>> xmail <at> xmailserver.org
>> http://xmailserver.org/mailman/listinfo/xmail
>>
>
> _______________________________________________
> xmail mailing list
> xmail <at> xmailserver.org
> http://xmailserver.org/mailman/listinfo/xmail

_______________________________________________ xmail mailing list xmail <at> xmailserver.org http://xmailserver..org/mailman/listinfo/xmail

_______________________________________________
xmail mailing list
xmail <at> xmailserver.org
http://xmailserver.org/mailman/listinfo/xmail

headers

Chris Franklin | 8 Sep 2011 13:35

Re: Mailbox on NAS

You probably have root squash turned on. Meaning no root access over nfs..

Ps. NFS is really not a good way to fix your low storage needs. Email systems has too high a reads and writes count NFS to stay stable very lonh with out a at least a nfs restart twice a day. And durning that time you'll need to stop xmail and restart it only after you confirm NFS and its mouts come backup clean.

Oh and ever forget to write your self a stale mount checker. As when NFS go stale you'll need to stop incoming mail and fix the mounts and restart mail.

On Sep 8, 2011 7:28 AM, "Rittikorn L" <rittikorn <at> ttni.co.th> wrote:
> Update.
>
> If I mount MailRoot folder to storage it can work normally.
> but it include spool folder, I don't want process spool folder at storage
> because storage it low performance, May be if run in real environment
> will lose connection.
>
> someone has any idea?
>
>
> Regards,
> Rittikorn L.
>
>
> On 08/09/11 15:43, Rittikorn L wrote:
>> Hello,
>>
>>
>> I would like to move XMail mailbox data to storage.
>> I mount nfs only domains folder to storage and copy all user folders
>> to storage.
>> mail client can connect to server and got old Email normally
>>
>> after that I check send Email to local users but no any Email receive,
>> Email still remain in spool folder,
>> but if I send Email to outside it can send normally,
>>
>> Help me please....
>>
>> Regards,
>> Rittikorn L.
>> _______________________________________________
>> xmail mailing list
>> xmail <at> xmailserver.org
>> http://xmailserver.org/mailman/listinfo/xmail
>>
>
> _______________________________________________
> xmail mailing list
> xmail <at> xmailserver.org
> http://xmailserver.org/mailman/listinfo/xmail

_______________________________________________
xmail mailing list
xmail <at> xmailserver.org
http://xmailserver.org/mailman/listinfo/xmail