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Re: Inconsistent Double Notifications

Subject: Re: Inconsistent Double Notifications
From: "[WRX]Raven"
Date: Fri, 14 Oct 2005 07:35:12 -0700
Newsgroups: microsoft.public.sqlserver.notificationsvcs
I even added a DISTINCT on the call just in the off chance it might help a 
while back!

There is a single event...and the rule only matches to one record.  I am not 
using a chronicle table.

This works, had worked without issue for a couple of months...and then poof 
just went flakey.  I am starting today to architect our own version of if you can help any it would head of some development work there!  
My thinking is that the DLL used by SQL Server is causing issues and the 
server needs a reboot...but I am not clear what it does, or why it is there.


                                                SELECT  DISTINCT 
cs.DeviceName, cs.SubscriberLocale, ce.CaseId, ce.ExternalCaseNumber, ce.BIN, 
ti.TransactionAmount, ce.CaseState)
                                                FROM    dbo.CaseEvent ce
                                                                INNER JOIN 
dbo.CaseSubscription cs
                                                                ON ce.CaseId = 
                                                                INNER JOIN 
CaseManagement.dbo.[Case] c
                                                                ON c.CaseId = 
                                                                INNER JOIN 
CaseManagement.dbo.CaseTransactionInfo cti
                                                                ON c.CaseId = 
                                                                INNER JOIN 
CaseManagement.dbo.TransactionInfo ti
ti.TransactionId = cti.TransactionId AND
ti.TransactionCode IN ('05', '06', '07') AND
= 1

"Joe Webb" wrote:

> Hi Simon - 
> Are there duplicate rows in the notification table? If so there's
> probably some issue with the matching rule and/or the data it's using
> to match on.  Can you post your matching rule? 
> Your post seems to indicate that you've eliminated the possibility of
> duplicate rows in the event table. Are you using a chron table? 
> HTH...
> -- 
> Joe Webb
> SQL Server MVP
> ~~~
> Get up to speed quickly with SQLNS
> I support PASS, the Professional Association for SQL Server.
> (
> On Thu, 13 Oct 2005 21:11:01 -0700, "[WRX]Raven"
> <[email protected]> wrote:
> >I have had an NS application running for a while now in a beta mode.  In the 
> >past two weeks the end users are getting events twice in their notification 
> >emails.  The event table has one entry, the rule will generate just one 
> >notification.
> >
> >I have been through the debug steps in Shyam's book from SAMS and it shows 
> >everything working as expected.  One day I bounced the NS service and the 
> >next day the notifications were back to normal.  I setup a job to bounce the 
> >service each night and that eventually didn't fix the problem.  I did a 
> >similar thing with DBCC FREE on the NS dll installed on the SQL Server, 
> >again 
> >I got a good set of notifications before it failed to fix the issue.  This 
> >is 
> >a production SQL Server that simply cannot be rebooted without extensive 
> >client notifications and consequences so if it is a memory/system issue I 
> >might be stuck.
> >
> >Has anyone run into anything similiar or have any ideas where to look or 
> >poke around?  We are pretty close to scrapping the whole NS application and 
> >writing our own that would be easier to maintain and troubleshoot.
> >
> >TIA
> >Simon

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