The Endeca Server is responsible for keeping each Endeca data domain up and running, and therefore constantly monitors each data domain.
If an Endeca data domain crashes, the Endeca Server attempts to re-start it three times. If the re-start attempts are unsuccessful, the Endeca Server does not try to re-start it again.
By default, these logs are stored in the $DOMAIN_HOME/EndecaServer/logs directory.