Data Warehousing - What is DTM session

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What is DTM session

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Last Update: April 11, 2007 Asked by: mallik.mongolla

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March 28, 2006 03:17:10

sithu

Member Since: March 2006 Contribution: 46

RE: What is DTM session

• The DTM process - Creates threads to initialize the session, read, write, and transform data, and handle pre- and post-session operations

• DTM process is the second process associated with a session run

• The primary purpose of the DTM process is to create and manage threads that carry out the session tasks

• The DTM allocates process memory for the session and divides it into buffers. This is also known as buffer memory

• It creates the main thread, which is called the master thread

• The master thread creates and manages all other threads

• If you partition a session, the DTM creates a set of threads for each partition to allow concurrent processing

• When the Informatica Server writes messages to the session log, it includes the thread type and thread ID

Cheers,

Sithu

www.sithu.s5.com, sithusithu@hotmail.com

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April 11, 2007 02:26:33

anilkumar.inf

Member Since: April 2007 Contribution: 1

RE: What is DTM session

DTM Stands fo data transformation manager

it is a process which runs secondly with every session run

it creates main thread for running the session and the main thread creates seperate threads for each session process for reading a session and writng session and transform the data and to run pre and paost session errors

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