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Scenario 3: Sizing the Tracking Database for Messages Sent Out to Distribution Lists

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In the following figure, you have a message that proceeds through an orchestration, is changed within the orchestration, and is then sent out to several different send ports through a distribution list.

Message through an orchestration to multiple ports

BizTalk Server message that proceeds through an orchestration and is sent out to several different ports

Here are some of the facts concerning this scenario:

  • The message size is 10K.

  • You are not promoting any properties.

  • The number of messages you receive in a year is 3.5 million.

  • Tracking is turned on for all events. There are five events in this scenario:

    • Receipt of message M0

    • Output of message M1 from the receive port

    • Output of message M3 by the send port

    • Output of message M4 by the send port

    • Output of message M5 by the send port

    Applying this information to the equation gives the following:

[(5*252 bytes) + (10*182 bytes) + (0*5(40 bytes + 0) * 3,500,000]/1024/1024  
[(1620 + 1820 + 0) * 3,500,000]/1024/1024 = 10280.61 MB ~ 10.04 GB per year

Messages in an orchestration that are sent out to a distribution list with a single promoted property

In this example, let's promote a single property, approximately 10 bytes in size, as we did in an earlier scenario. The equation now looks like this:

[((5*150 bytes) + (10*230 bytes) + (1*5(52 bytes + 10 bytes)) * 3,500,000]/1024/1024  
[(750 + 2300 + 260) * 3,500,000]/1024/1024 = 11048 MB ~ 10.79 GB per year

If we promote an additional property that is 20 bytes in size the equation now looks like this:

[((5*150 bytes) + (10*230 bytes) + ((1*5(52 bytes + 10 bytes) + (1*5(52 bytes + 20 bytes)) * 3,500,000]/1024/1024  
[(750 + 2300 + 670) * 3,500,000]/1024/1024 = 12417 MB ~ 12.13 GB per year

Messages in an orchestration that are sent out to a distribution list with message body tracking activated

If you want to accommodate message tracking, the equation will look like the following for this example:

[3,500,000 * 6 * 5KB]/1024 = 102539.06 MB ~ 100.14 GB per year

See Also

Using Message Variables to Size the Tracking Database
Sizing the Tracking Database to Track Message Bodies
Scenario 1: Sizing the Tracking Database for Simple BizTalk Messages
Scenario 2: Sizing the Tracking Database for Messages in Orchestrations
Scenario 4: Sizing the Tracking Database for all Messages