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Re: zmailer scheduler problem
> I am running zmailer-2.99.15 and quite satisfied with the robustness and
> performance. However, it has a problem in scheduler when delivering multiple
> mails on a single SMTP session to a host.
No, not on scheduler, but on SMTP reports.
> Scheduler seems group all the mails that addressed to same destination and
> deliver on a single SMTP session to that host. Whenever there's a SMTP
> error response in one mail, it causes all other undelivered mail returned
> with the same error response.
>
> Followings is the scheduler logfile:
>
> poalanng@usthk.ust.hk is unknown user but ccsamuel@usthk.ust.hk,
> ccsyau@usthk.ust.hk and ccwilson@usthk.ust.hk are all valid users in our
> host. And I don't know why the SMTP session for those valid users contain
> some unrelated SMTP transaction.
Quite elementary..
> +--------------------------------------------------------------------------+
Multiple messages are being worked on by the smtp-transporter.
This is propably the FIRST message, and it returns an error:
> /usr/lib/zmailer/bin/ta/smtp: 26535/135/poalanng@usthk.ust.hkfailed553 ( unknown or illegal user: poalanng@usthk.ust.hk)/error
<<- RCPT To:<poalanng@usthk.ust.hk>
->> 553 unknown or illegal user: poalanng@usthk.ust.hk
A message to ccsamuel@usthk.hk was sent ok, but info about it is
not replaced by the error report system triggered by bad recipient:
> /usr/lib/zmailer/bin/ta/smtp: 26468/133/ccsamuel@usthk.ust.hkfailed553 ( unknown or illegal user: poalanng@usthk.ust.hk)/error
<<- RCPT To:<poalanng@usthk.ust.hk>
->> 553 unknown or illegal user: poalanng@usthk.ust.hk
<<- RSET
->> 250 Ok.
Another success in between -- or before a failure.
> /usr/lib/zmailer/bin/ta/smtp: 26471/124/CCSYAU@usthk.ust.hkfailed553 ( unknown or illegal user: poalanng@usthk.ust.hk)/error
<<- RCPT To:<poalanng@usthk.ust.hk>
->> 553 unknown or illegal user: poalanng@usthk.ust.hk
<<- RSET
->> 250 Ok.
> /usr/lib/zmailer/bin/ta/smtp: 26517/640/ccwilson@usthk.ust.hkfailed553 ( unknown or illegal user: poalanng@usthk.ust.hk)/error
<<- RCPT To:<poalanng@usthk.ust.hk>
->> 553 unknown or illegal user: poalanng@usthk.ust.hk
<<- RSET
->> 250 Ok.
> +----------------------------------------------------------------------------+
>
> I think the scheduler is messed up for this case. It will happen most
> frequent when our host usthk.ust.hk is down and then up afterward, all
> the mails that can't deliver to it will gang schedule to deliver to a
> single SMTP session.
>
> Does anyone has the same error in your site? Does it help if I removed
> the option "gangschedule" in our scheduler.conf "smtp/usthk.ust.hk" ?
I have seen it for ages, but it is less frequent, than several
other errors, that I have also seen -- now that those others
are gone, this is the largest error spike around.
I will grind it down ;-)
It is hidden, if you run one message on each transport, but
such loads the machine unnecesserily.
> =======================================================================
> Lai Yiu Fai | Tel.: (852) 2358-6202
> Centre of Computing Services | Fax.: (852) 2358-0967
> & Telecommunications | E-mail: ccyflai@uxmail.ust.hk
> |
> The Hong Kong University of | Clear Water Bay,
> Science & Technology | Kowloon, Hong Kong.
/Matti Aarnio <mea@nic.funet.fi>