Jdbc postgresql keepalive

JDBC connections to PostGres can be configured with a keep-alive setting. An issue was raised against this functionality here: JDBC keep alive issue. TCP keepalive not working - Stack. Is there a timeout for idle PostgreSQL.

Timeouts connecting to a Postgres. Hi experts, I have a program running like a daemon, which analyze data and write to postgresql 9. Is this a 2-way keepalive , in that if the server process dies, the client connection would timeout, too? Connecting to the Database. With JDBC , a database is represented by a URL (Uniform Resource Locator). The driver will now wait for EOF when sending cancel signals.

TCP KeepAlive , makes connections timing out after 2-minutes (instead of min as expected) and this could really harm the effectiveness of connection pooling. It supports PostgreSQL 8. It contains support for SSL and the javax. If you are using Java or newer then you should use the JDBC 4. Some clients keep idle connections for long periods of time - this is especially frequent when waiting for PostgreSQL notifications.

If you set it to the TCP socket on the client machine will have the SO_ KEEPALIVE socket option set to 0. Server side option: Oracle Database comes with a Dead Client Detection feature where Oracle Server sends a probe. There are couple of options with Oracle. The character set to use for data sent to the database or recieved from the database. This property is only relevent for server versions less than or equal to 7. CraigRinger even a psql connection is considered as idle connection.

And why does one has to close the idle connection at first place. I have a long running code that establish connection with pg perform some dml operation and the then wait for the message over queue and then perform some more dml operation. Now during that period i. Configuring TCP Keepalives. Today when I was changing password in Postgresql I spot that app is still running with old credentials. This gives me time to rolling restart app with new db credentials.

Open connections still work, because was authenticated with old credentials. How long Postgres will keep those connection active? Exception while reading from stream My proper working postgreSQL conn. SSH tunnel keep-alive interval (on SSH settings page).

Thanks for noticing - fixed. Driver specific keep-alive interval. Webucator provides instructor-led training to students throughout the US and Canada. We have trained over 90students from over 10organizations on technologies such as Microsoft ASP. I enabled Postgres server keepalives using tcp_ keepalives _interval, tcp_ keepalives _idle and tcp_ keepalives _count.

I checked with tcpdump on the client and there are keep alive packets coming from the DB host. JDBC interceptors: To see an example of how to use an interceptor, take a look at org.