Regarding Datastore?

Hi All,
I can see the following line in the server.log file.
[TNS.0000.2073I] Inserting doc XXXXX into datastore
I would like to know which service writes the above message into the server.log file.

Thanks
Devi

The documents processed in TN are saved to its database using wm.tn.doc:persist service.

-Ambrish-