Is there a comprehensive document that will explain all error/warning/information messages generated in the event log?
General information.
There is no comprehensive or complete document that will explain all error/warning/information messages generated in the event log. This is due to the sheer number of such type of messages combined with numerous situations that can cause each of such messages. The KnowledgeBase on Supportlink and Shareplex manuals (Shareplex Administrator Guide and Shareplex Reference Guide) do cover most of these though.