By default, the log files for an Edge component are written to the
  /opt/apigee/var/log/component_name directory, where
  component_name can be one of the following:
  
- apigee-cassandra(Cassandra)
- apigee-openldap(OpenLDAP)
- apigee-postgresql(PostgreSQL database)
- apigee-qpidd(Qpidd)
- apigee-sso(Edge SSO)
- apigee-zookeeper(ZooKeeper)
- edge-management-server(Management Server)
- edge-management-ui(new Edge UI)
- edge-message-processor(Message Processor)
- edge-postgres-server(Postgres Server)
- edge-qpid-server(Qpid Server)
- edge-router(Edge Router)
- edge-ui(Classic UI)
In addition to this list, Edge also logs the setup process in the
  /opt/apigee/var/log/apigee-setup directory.
Use the following procedure to change the default log file location for all Edge components except the Edge UI:
- Create the following file:
      /opt/apigee/etc/component_name.d/APIGEE_APP_LOGDIR.sh 
- Add the following property to the file:
      APIGEE_APP_LOGDIR=/directory/path Where /directory/path specifies the directory for the log files. 
- Make sure the directory is accessible by the "apigee" user:
      chown apigee:apigee /directory/path 
- Restart the component:
      /opt/apigee/apigee-service/bin/apigee-service component_name restart 
For more information about the name and location of the component configuration files, see Location of properties files.