Question

Is there any way to guarantee that an application won’t fail to release row locks in Oracle? If I make sure to put commit statements in finally blocks, that handles the case of unexpected errors, but what if the app process just suddenly dies before it commits (or someone kicks the power cord / lan cable out).

Is there a way to have Oracle automatically roll back idle sessions after X amount of time? Or roll back when I somehow detects that the connection was lost?

From the experiments I’ve done, if I terminate an app process before it commits, the rows locks stay forever until I log into the database and manually kill the session.

Thanks.

Answer 1

Try setting SQLNET.EXPIRE_TIME in your sqlnet.ora.

SQLNET.EXPIRE_TIME=10

From the documentation:

Purpose
To specify a time interval, in minutes, to send a check to verify that client/server connections are active.