Setup log_file in odoo config file

1、build file name via the dictionary： /var/log/openerp/openerp-server.log

2、run the command to issue the file via write:  chown odoo  /var/log/openerp/openerp-server.log

3、edit the odoo configuration file at:  /etc/odoo/openerp-server.conf， add the following line to define the path route of the log file.

logfile=/var/log/odoo/openerp-server.log
log_handler=["[':INFO']"]
log_level=info

4、after this restart the odoo service via "systemctl restart odoo", the odoo error log file will start record the odoo system action and diary.