Do You Have Any Tips About Load Balancing, Failover and Clustering for ActiveADAPTER?

Active Directory Send Adapter

If you create multiple host instances for the host that acts as the send handler for ActiveADAPTER, BizTalk will generally take care of failover for you with send ports.  BizTalk will distribute messages to the host instances in a round robin fashion, and if one is down it will try the next. See your BizTalk documentation for more information.

Active Directory Receive Adapter

The best way to think about ActiveADAPTER receive locations and failover is to treat them like FTP receive locations. Microsoft has a number of documents dealing with failover and clustering solutions for FTP receive locations and these architectures will typically apply to ActiveADAPTER receive locations. See your BizTalk documentation for more information.

The use of Host load balancing in NOT recommended for receive locations. The queries performed by your ActiveADAPTER receive locations do not lock Active Directory results and if run on different host instances as part of load balancing may result in duplicate messages into your receive ports.

Clustering

As mentioned above, the best way to think about ActiveADAPTER in terms of clustering architecture is like the FTP adapter. There are a couple of useful resources about adapters and clustering at:

http://msdn.microsoft.com/en-us/library/aa561801(v=bts.20).aspx

http://kentweare.blogspot.com/2009/04/clustering-biztalk-hosts.html

In the second article Kent Weare discusses Active/Passive clustering that can offer redundancy with just the one BizTalk host – “host clustering”.

FAQs
Can I use the ActiveADAPTER Send Adapter with dynamic send ports?

Yes. The Send Adapter is fully compatible with dynamic ports.

A sample orchestration showing the use of ActiveADAPTER with dynamic send ports is included in the ActiveADAPTER\Samples folder.

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Can ActiveADAPTER help me retrieve information from Active Directory?

Yes. The Active Directory Receive Adapter can be used to create a Receive Location that queries Active Directory at regular intervals and submit the results to your BizTalk application. A message can be submitted to BizTalk at every polling interval, or only when a change occurs in the query results (this is the "On Change Only" option on the Active Directory Receive Adapter property configuration).

In addition, the Active Directory Send Adapter can be used with a Solicit-Response Send Port to perform an on-demand query. You just send your query parameters to the send port in a message that conforms to the supplied schema, and receive your results back in a new message.

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Is there a WCF version of ActiveADAPTER?

Yes. ActiveADAPTER is available as a Windows Communication Foundation (WCF) service. So with or without BizTalk Server, you can query and update Active Directory with ActiveADAPTER

ActiveADAPTER WCF exposes essentially the same functionality as our Active Directory Send and Receive Adapters.

ActiveADAPTER WCF services can be consumed by BizTalk Server, but BizTalk Server is not required.

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