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Old 08-20-2008, 12:57 AM   #1 (permalink)
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Default Slow Message delivery, very high bandwidth use and a few others!

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Good morning

I'm having several issues with a BES, but not really sure where to go from here to be honest. First things first;

BES 4.1.4 for Lotus Domino
Domino 7.0.3 Mail Servers

1 x Local mail server (11 Blackberry users)
3 x Remote mail servers (2 / 3 / 4 Blackberry users)

I know that it isn't ideal to have mail servers on a remote network, but for the number of users involved it is not possible to justify a BES.

The problems we are seeing include;
  • The users on one of the remote mail servers are seeing severe delays at times for messages to be delivered to handhelds (sometimes up to 6 - 12 hours)
  • Same users not able to do remote lookups
  • Bandwidth utilisation is high between the BES and this particular mail server (maxing out their 512k MPLS connection)
  • OTAFM not working properly (putting messages in folders on the Blackberry doesn't get reflected in the Lotus Notes mailbox) - this happens to most users, even the ones on the local mail server to the BES. Wireless Reconciliation is switched on and deletions seem to work fine

Apart from that, everything is working great!!

Anyone with any idea where I can start to get this sorted? Any help would be very gratefully received!!

Kind regards

Richard
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Old 08-20-2008, 01:24 AM   #2 (permalink)
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Richard, firstly majulah Singapura Sounds like your BES is not in a healthy state. Are you seeing hung threads in the MAGT logs? Keyword to lookup is "No Response".

Hung thread could cause lookup timeout. They can also be a result of slow network between BES and the mail servers. Look at the MAGT logs, they will tell.
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Old 08-20-2008, 01:38 AM   #3 (permalink)
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Quote:
Originally Posted by noname View Post
Richard, firstly majulah Singapura Sounds like your BES is not in a healthy state. Are you seeing hung threads in the MAGT logs? Keyword to lookup is "No Response".

Hung thread could cause lookup timeout. They can also be a result of slow network between BES and the mail servers. Look at the MAGT logs, they will tell.
Terima kasih for that! I am seeing quite a few No Response entries, and mostly to this one remote site. I've had a look at the thread issues, but can;t really see a way around it.

I've found the following technote, and can change the threading model to the "old" one, but not 100% sure what that would mean.

Doc ID : KB04909 in BlackBerry Technical Solution Center
(sorry couldn't post URLs!)

What other ways can we combat this? Surely by adding more available threads we would simply be giving it more opportunity to generate the newtork traffic. Is there anything that we can do to reduce the traffic being generated which would in turn help the no responses?

Many thanks

Richard

EDIT!!

Also seeing this in the log if its relevant...
FolderManager::ScanFolders: slicing User/OU/O at folder xxxx

Last edited by ffridd : 08-20-2008 at 01:47 AM. Reason: More info!!
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Old 08-20-2008, 01:51 AM   #4 (permalink)
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I would not advise you to action yourself on KB04909 without consulting RIM. KB03124 will be your best information on why hung threads are formed.

BlackBerry Search Results

Contact Singtel and have them set you up with RIM for a log review.
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Old 08-20-2008, 01:53 AM   #5 (permalink)
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Also one more thing, RIM advises BES to be as close to the mail servers as possible. By doing so actually reduces your BES from generating hung threads. FYI.
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