Microsoft KB Archive/100454

= Mac Srv: Definition of Mail Server Threads =

Article ID: 100454

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Mail for Appletalk Networks 3.0
 * Microsoft Mail for Appletalk Networks 3.1

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This article was previously published under Q100454



SUMMARY
Versions 3.0 and 3.1 of Microsoft Mail for AppleTalk Networks' server processes requests via internal "threads." Depending on the version of Mail and memory allocation to the mail server, the number of threads available to the mail server can vary. Below is a detailed summary of the types and numbers of threads that are available to the server.  1     System Thread - Used during initial Startup to initialize database, etc.

4-16  User Threads - User threads receive, process and respond to        requests from workstations. The number of threads is dependent upon the amount of memory allocated to the server under Server Settings and what processes are being handled by the server.

At a minimum there will be 4 user threads dedicated to       responding to user requests. If there is 2 MB or more of memory allocated to the server and the Mail version is 3.1 or higher, 8 user threads will be initialized.

In version 3.1, the following applies:

If a user has a request regarding an attachment being processed by       the server, a secondary thread will be spawned. The user is then transferred to the new thread while the enclosure information is       processed. At the completion of the enclosure processing, the secondary thread is removed.

It is possible for the server to have a maximum of 16 user requests being processed at any given time. This would indicate that 8 clients were processing standard read/send message requests and 8 additional users were sending/receiving attachments.

1     Misc. Thread - Notify, Auto Logoff after 15 minutes, Database Compression, and Empty Wastebasket.

Database Compression will only occur when System Activity is low. Therefore, if a large amount of attachments/messages are deleted from the server, then the Microsoft Mail Data File may not reduce in size immediately.

When a Server is busy sending and receiving messages from users, it is possible that users will not be instantly notified that new messages have arrived.

1-2   Server Threads - Server Thread for communications to other servers.

With ALL mail versions earlier than 3.1a, there is one server-server thread. This thread handles all messaging between servers. With 3.1a, when working across site names (routing), a secondary thread may be spawned for processing of messages from a different site.

Additional query words: 3.00 3.10

Keywords: KB100454

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