Hi there,

the mailinglist strips of attachments. Please create a jira issue and
attach it there.

Thanks,
Norman


2011/12/2 Thomas Eichmann <t.eichm...@eggsist.com>

>  Hi Norman
>
> I added the jstack output as attachment. I hope it will be helpful.
>
> Best,
> Thomas
>
>
>
> On Donnerstag, 1. Dezember 2011 at 21:11, Norman Maurer wrote:
>
> Hi there,
>
> could you please also show us the thread stacktrace.
>
> Bye,
> Norman
>
>
> 2011/11/30 Thomas Eichmann <t.eichm...@eggsist.com>
>
> Hi James users,
>
> First a short background info, what our company would like to achieve
> using James. We have several clients that need mass-mailing capability,
> thus we want to create a system that allows us to track these mails and
> especially store errors from bounces (also by using VERP), so we can block
> unreachable addresses. I created a few custom mailets to handle those
> requirements and a custom RemoteDelivery implementation for creating VERP
> style sender addresses. The storage is all done in a MySQL database via
> JPA. Currently we use it for one client which is not sending huge amounts
> of mails, around 80,000 per month.
>
> The system works well, but it happens after a bigger batch of mails
> (around 4,000 mails) that the mail queueing system gets somehow "stuck".
> The SMTP server is able to retrieve new mails, but somehow they don't get
> send out, until I restart the server. Sometimes a flush() on queue/spool
> helps, but most of the times a restart is necessary.
>
> I added logging to my mailets when they start and finish to see if there
> is a problem, but they seem to run fine (no exceptions). It seems that the
> mails that arrive after James gets stuck get processed normally by the
> mailets, but somehow are not dequeued and sent out.
>
> Server info
> James 3.0 Beta3
> linux 2.6.24-23-xen #1 SMP Mon Jan 26 03:09:12 UTC 2009 x86_64 GNU/Linux
>
> Frankly I'm not sure what is the best way to debug this kind of problem
> with James. I could find a few other threads with people describing similar
> problems, but I couldn't get closer to the problem.
>
> Here some data from JMX that I took while the server was in "stuck" status.
>
> =======================================================
> INFO org.apache.james:type=component,name=queue,queue=outgoing
> =======================================================
> Size == 80
> =======================================================
> INFO org.apache.james:type=component,name=queue,queue=spool
> =======================================================
> Size == 0
> =======================================================
> INFO
> org.apache.james:type=component,component=mailetcontainer,name=mailspooler
> =======================================================
> CurrentSpoolCount == 0
> ThreadCount == 20
> =======================================================
> INFO
>
> org.apache.james:type=component,component=mailetcontainer,name=mailspooler,sub-type=threadpool,threadpool=dequeuer
> =======================================================
> TotalTasks == 0
> AverageTaskTime == 0.0
> ActiveThreads == 2
> ActiveTasks == 2
> QueuedTasks == 0
> MaximalThreads == 2
> =======================================================
> INFO
>
> org.apache.james:type=component,component=mailetcontainer,name=mailspooler,sub-type=threadpool,threadpool=spooler
> =======================================================
> TotalTasks == 4653
> AverageTaskTime == 145.0
> ActiveThreads == 20
> ActiveTasks == 0
> QueuedTasks == 0
> MaximalThreads == 20
>
>
> I also created a jstack output, as it was suggested in one of the threads
> I found. I can post it here as well if it could be helpful (I didn't do it
> now, because the file is quite large).
>
> This is the logging output when a new mail is sent while the queue is
> stuck (IgnoreBlockedMailet and SendAttemptLogMailet are my custom mailets):
>
> DEBUG 03:54:46,819 | james.mailspooler | ==== Begin processing mail
> Mail1322625286815-aa8034cb-4d50-4044-926f-10bbe8b637e5====
> DEBUG 03:54:46,819 | james.mailprocessor | Call MailProcessor root
> INFO 03:54:46,827 | james.mailetcontext | IgnoreBlockedMailet called -
> recipients=[t.eichm...@eggsist.com 
> (mailto:t.eichm...@eggsist.com<t.eichm...@eggsist.com>
> )]
> INFO 03:54:46,847 | james.mailetcontext | IgnoreBlockedMailet finished -
> recipients=[t.eichm...@eggsist.com 
> (mailto:t.eichm...@eggsist.com<t.eichm...@eggsist.com>
> )]
> DEBUG 03:54:46,847 | james.mailprocessor | Call MailProcessor transport
> INFO 03:54:46,863 | james.mailetcontext | SendAttemptLogMailet called -
> recipients=[t.eichm...@eggsist.com 
> (mailto:t.eichm...@eggsist.com<t.eichm...@eggsist.com>
> )]
> INFO 03:54:46,927 | james.mailetcontext | SendAttemptLogMailet finished -
> recipients=[t.eichm...@eggsist.com 
> (mailto:t.eichm...@eggsist.com<t.eichm...@eggsist.com>
> )]
> DEBUG 03:54:46,931 | james.mailprocessor | End of mailetprocessor for
> state root reached
>
> What is missing is this part, which usually follows when the server is
> functioning (at least follows after a few minutes if the server is busy).
>
> INFO 03:54:46,943 | james.mailetcontext | Attempting delivery of
> Mail1322620955282-2b903c2d-8378-4a10-848b-6ebd489182bf-to-eggsist.com to
> host ASPMX.L.GOOGLE.com. at 209.85.225.26 from
> bounce+t.eichmann=eggsist.com@???.com for addresses [
> t.eichm...@eggsist.com (mailto:t.eichm...@eggsist.com<t.eichm...@eggsist.com>
> )]
> INFO 03:54:47,671 | james.mailetcontext | Mail
> (Mail1322620955282-2b903c2d-8378-4a10-848b-6ebd489182bf-to-eggsist.com)
> sent successfully to ASPMX.L.GOOGLE.com. at 209.85.225.26 from
> bounce+t.eichmann=eggsist.com@???.com for [t.eichm...@eggsist.com (mailto:
> t.eichm...@eggsist.com)]
>
>
> There are a couple of mails that get re-queued 25 times (default limit for
> attempts) due to DNS issues (like no MX entry for a domain etc.) until they
> are bounced in the system. But I assume James should be able to handle such
> mails and new ones in the queue without problems.
>
> Is there a way to examine mails that are queued and their status? Like how
> many times are they already being re-queued, why are they still in the
> queue etc.? I'm really not sure how I can debug this issue as I'm new to
> James. Any help is very appreciated.
>
> Regards,
> Thomas
>
>
> --
> Thomas Eichmann
>
> EGGsist limited
> suite 27a, tower b, oriental kenzo
> dongzhimen, beijing, china
> +86 (010) 84477066
>
>
>
>
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