Thread: connection timeout?

connection timeout?

From
Antonini Roberto
Date:

Hi all,

I executed following test in a classical scenario involving an application on a PC connected to a DB Server where postgres is running:

  • I disconnected network cable between PC and DB server
  • I started the application on PC

 

The application remains blocked on

            DriverManager::getConnection

method invocation.

Is it a timeout issue?

If so, how can I set this timeout?

 

Thanks in advance,

Roberto.

 

 

Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia S.p.A.

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Re: connection timeout?

From
Oliver Jowett
Date:
Antonini Roberto wrote:

>     * I disconnected network cable between PC and DB server

> The application remains blocked on
>             DriverManager::getConnection

I'd expect this to eventually time out, but it might take several
minutes. It depends on your TCP stack.

> Is it a timeout issue?

Yes.

> If so, how can I set this timeout?

Currently you can't, mostly because it hasn't been a big enough issue
for anyone to step forward and implement.

When implemented I'd expect it would be set via a URL parameter.

The Java socket primitives makes it quite hard to do timeouts on connect
anyway. Either you have to use NIO (doesn't exist until 1.4, would be an
invasive change) or Socket.connect() (doesn't exist until 1.4). So
you're out of luck under 1.3, and the driver will have to do conditional
compilation to use 1.4-specific code as it needs to build under 1.3.

-O