[opencms-dev] meaning of database parameters in opencms.properties

[Salvador Santander Gutierrez]

What's the meaning of this parameters in opencms.properties?
And ...What unit is used in each parameter?
pool.mysql.minConn=10
pool.mysql.maxConn=20
pool.mysql.increaseRate=5
pool.mysql.timeout=120
pool.mysql.maxage=360

Tahnks very much