Npgsql connection idle lifetime. Specifies the host name - and optionally port - on which PostgreSQL is running. We don't have another way to know if you might want to keep using it otherwise. Apr 29, 2025 · Npgsql's connection pooling system maintains collections of idle connections organized by connection string. So once ConnectionIdleLifetime has passed (10 seconds), Npgsql closes a single idle connection. May 18, 2020 · You are effectively telling Npgsql to close idle connections in the pool after 2 seconds - any reason you are setting this to such a short value? The default, which is 300 (5 minutes) is probably more appropriate. When a new connection is requested, Npgsql first checks if an idle connection exists in the pool. Multiple hosts may be specified, see the docs for more info. Oct 8, 2019 · Your connections aren't getting closed, for the Npgsql connection pool to work correctly you really have to return the connection (either Close or Dispose does this) before it is available as 'idle' in the pool again. . If available, this connection is returned immediately instead of creating a new one. Jun 12, 2020 · In your case, since your application is almost doing nothing, the sampling consistently shows 1 idle connection. In version 3, only as many connections as are needed are kept open, while in version 4, once a connection is opened the connection is kept alive indefinitely in normal circumstances. Below are the connection string parameters which Npgsql understands, as well as some standard PostgreSQL environment variables. In this scenario, how can the client know the connection is still up, and hasn't been broken by a server or network outage? For this purpose, Npgsql has a keepalive feature, which makes it initiate periodic ping roundtrips. wgl jha bon taj xzu uyr ebt mno jdx njz lyb tke qwi pjm oat