We have a JDBC connection pool on a weblogic 12c. When the backend database goes to offline, the pool goes into suspended state, and when the db is back online after a short period of time (say 5 min), the pool goes into running state. That's normal and what I expected weblogic will behavior.
But a couple of days ago the DB is crashed for about 30 min, and when the db is back online, the pool always keeps in suspended state, never return to running state. We have to re-start the pool manually. Is there any settings we can tune this behavior? Our test frequency is 600 sec and connection creation retry frequency is 0.