mqueue.in and mqueue

[Peter Bonivart]

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Chris Conn wrote:
> Hello,
>
> I would like to get around this error:
>
> MailScanner[11532]: /var/spool/mqueue.in & /var/spool/mqueue
>  must be on the same filesystem/partition!
>
> I would like to run the mqueue.in partition in a tmpfs, in order to
> reduce IO slowdowns.

Wouldn't that be very risky? Using tmpfs for
/var/spool/MailScanner/incoming is risk free though.

> Can someone educate me as to why the two must reside on the same
> partition or filesystem?  What is the reasoning behind this (I don't
> want to generalize it as a limitation, but in my case it certainly feels
> that way)?

When MailScanner moves the message from the incoming queue to the
outgoing it's a much lighter operation if it's the same file system.

--
/Peter Bonivart

--Unix lovers do it in the Sun

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