Have you seen unexpected session cleanup due to network latency? Or do you combine expire_time with DCD on the listener? Share your experience below!
The SQLNET.EXPIRE_TIME parameter in the sqlnet.ora file is the primary configuration for in Oracle Database 19c. Its core purpose is to ensure that database server resources—such as memory, locks, and CPU—are not held indefinitely by client connections that have terminated abnormally without a proper logout. How SQLNET.EXPIRE_TIME Works in 19c
Simulate a dead connection:
Actually, sqlnet.ora changes take effect for . Existing sessions will not inherit the new setting.
grep expire_time $ORACLE_HOME/network/admin/sqlnet.ora
The server-side process sends a small probe packet (roughly 10 bytes) to the client.
Combine expire_time with inbound timeouts to protect against both idle zombies and hung network I/O.
