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couple of load/dump functions to convert to and from a human readable fmt.
while at it kill struct delivery and merge back its fields to the envelope.
this basically means we shouldn't require users to flush their queues every
time we make a change to struct envelope.
work is not done, but we're at a better state than the binary fsqueue so
we'll improve it in-tree.
has been running on my own box for the last 12 hours or so
ok eric@, chl@
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bring a shitload of unnecessary information everywhere. this required many
parts of smtpd to be refactored and more specifically envelope expansion.
in the process lots of code got simplified, and the envelope expansion code
has been isolated to lka_session.c with some longstanding bugs fixed.
Diff has been tested by many with no major regression reported.
armani@ spotted a bug in a setup where a domain is listed a both primary
and virtual, I will fix that in-tree as it's becoming painful to maintain
this diff out.
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discussed with and ok gilles@
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struct message ...
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smtpd now has an evpid associated to each delivery message, the evpid is an
u_int64_t where the upper 32 bits are the msgid, and the 32 bits are the
envelope unique identifier for that message. this results in lots of space
saved in both disk-based and ram-based queues, but also simplifies a lot of
code.
change has been stressed on my desktop, and has ran on my MX for the entire
afternoon without a regression.
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fsqueue_envelope_create(), fsqueue_message_purge()
- kill deprecated functions in queue_shared.c
At this point fsqueue backend is almost complete, all that is left to do is
to move the qwalk() API inside the queue_backend API, then make sure smtpd
is no longer calling anything queue related directly.
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- fsqueue->setup() performs the queue initialization;
- fsqueue->message() controls messages;
- fsqueue->envelope() controls envelopes;
This commit brings the following to fsbackend:
fsqueue_setup(), fsqueue_message_delete(), fsqueue_envelope_load(),
fsqueue_envelope_update(), fsqueue_envelope_delete().
It also makes smtpd use the queue_backend API for these operations.
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disk-based queue, it makes it near impossible to make changes to it without
editing twenty files... how am i going to implement mongodb support ? :-)
bring a new queue_backend API which hides the details of the disk-based
queue to smtpd. it is not "plugged in" yet and I'm filling the holes.
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be done before we can write queue backends anyway ...
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Major goals:
1) Fix bad performance caused by the runner process doing full queue
read in 1s intervals. My Soekris can now happily accept >50 msg/s
while having multi-thousand queue; before, one hundred queue would
bring the system to its knees.
2) Introduce Qmail-like scheduler that doesn't write as much to the
disk so that it needs less code for servicing error conditions,
which in some places can be tricky to get right.
3) Introduce separation between the scheduler and the backend; these
two queue aspects shouldn't be too tied too each other. This means
that eg. storing queue in SQL requires rewrite of just queue_backend.c.
4) Make on-disk queue format architecture independent, and more
easily extensible, to reduce number of flag days in the future.
Minor goals:
ENOSPC no longer prevents delivery attempts, fixed session limiting
for relayed mail, improved batching of "relay via" mails, human-readable
mailq output, "show queue raw" command, clearer logging, sending
of single bounce about multiple recipients, exact delay= computation,
zero delay between deliveries while within session limit (currently
1s delay between re-scheduling is enforced), mta no longer requests
content fd, corrected session limit for bounce submissions, tiny
<100B queue files instead of multi-KB, detect loops before accepting
mail, reduce traffic on imsg channels by killing enormous struct
submit_status.
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gilles
eric
jacekm