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The process could not execute 'sp_replcmds' on



Today I ran in to a bit of a bizarre error message when setting up replication.  After initializing the subscription I tried starting the log reader agent, but it never wanted to start. It kept on telling me that “The process could not execute 'sp_replcmds'” could not be executed.
I opened replication monitor for a closer look at the error message, after going through the details of the log reader agent i was surprised to find three messages. Following are the messages as they were listed on the agent history.

·          The process could not execute 'sp_replcmds' on 'SQL\LAB01'. (Source: MSSQL_REPL, Error number: MSSQL_REPL20011)
Get help: http://help/MSSQL_REPL20011
·          Cannot execute as the database principal because the principal "dbo" does not exist, this type of principal cannot be impersonated, or you do not have permission. (Source: MSSQLServer, Error number: 15517)
Get help: http://help/15517
·          The process could not execute 'sp_replcmds' on 'SQL\LAB01'. (Source: MSSQL_REPL, Error number: MSSQL_REPL22037)
Get help: http://help/MSSQL_REPL22037


Following are some of the articles that described the same error and their workarounds. It seems there are few things to consider and weigh in before cominting on a precise fix.

http://support.microsoft.com/kb/811030
http://social.msdn.microsoft.com/Forums/en-US/sqlreplication/thread/c4f889b2-0f02-4822-81af-0a726606649d

http://blogs.msdn.com/sqlserverfaq/archive/2008/12/30/log-reader-agent-fails-with-the-error-the-log-reader-agent-failed-to-construct-a-replicated-command-from-log-sequence-number-lsn.aspx


All I had to do was to make “SA” the DB owner on the publisher end.  

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