Logging for cache activity on the Terracotta Server Array is controlled by Ehcache. Ehcache logging has a default configuration, but you can change it by modifying the .tc.dev.log4j.properties file. This file is located in the Integration Server_directory . Ehcache creates additional log files on Integration Server when Integration Server connects to a Terracotta Server Array. You can specify where you want Ehcache to put the log files by setting the watt.server.cachemanager.logsDirectory property on Integration Server. The default value for this property is Integration Server_directory /instances/instance_name/logs/tc-client-logs directory. For information about how Ehcache logs cache manager activity when Integration Server connects to a Terracotta Server Array, see