[Raw Msg Headers][Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: persistent connection problem
Thank you very much.
I will try it in our lab tomorrow and will write you if there any
developments.
If i'de like to add the code that closes the SMTP stream, what do i need
to do or get? i'm not a programmer (just a sys admin)
Thanks,
Mike
Matti Aarnio wrote:
>On Sun, Aug 22, 2004 at 09:39:01PM +0000, Mike Almogy wrote:
>
>
>>Hello all
>>
>>I'm new to Zmailer and have some questions.
>>Here is my situation: I have a customer who has zmailer as mail relay
>>with some anti virus/anti spam software that works only on zmailer.
>>The mail relay sends it's received mails to a F5 load balance system
>>that supposed to distribute the load among 4 other mail server.
>>The problem, as they told me, was that the F5 keeps TCP connections, and
>>since the zmailer keeps it's tcp connection and keeps persistent
>>connection to the mail server,then only one of the mail servers is
>>actually working.
>>
>>Is there a way to disable this ?
>>
>>
>
>Or side-step it.
>
>There is a way to run parallel streams.
>
>Current setup has a capability to route thru a parallel
>delivery setup.
>
>E.g. into routes file add:
>
> target.dom smtp-par![1.2.3.4]
>
>and delivery will run in parallel streams.
>The smtp-par is defined in the scheduler.conf file, and in
>there you can add more parallel streams, if need be:
>
>#
># In some cases we definitely want to run parallel smtp sessions
># to given destination:
>#
>smtp-par/*
> maxchannel=999
> maxring=50
> maxthr=10
> overfeed=2
> interval=1m
> retries="1 1"
> skew=1
> command="smtp -c smtp-par -s" #- l ${LOGDIR}/smtp-par"
>
>
>The "maxthr=10" in there sets the system to run up to 10 streams
>in parallel. Now if there are maxthr * overfeed number of
>messages to be sent, then all allocated streams will be feeding
>simultaneously.
>
>If that isn't enough, make a new -- "smtp-par-20/*" clause, or
>some such, and set in there "maxthr=20" (or however much you
>feel necessary).
>
>There is no way to limit the number of messages per connection.
> ...
>Hmm... There is a possibility to add code to send only one message
>per connection ( = close SMTP stream after each message )
>That might help a bit, too.
>
>
>
>
>>Thanks,
>>
>>Mike
>>
>>
-
To unsubscribe from this list: send the line "unsubscribe zmailer" in
the body of a message to majordomo@nic.funet.fi