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Re: Problem
- From: Oliver Jowett <oliver(at)opencloud(dot)com>
- To: Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at>
- Cc: mauricio(dot)solis(dot)h(at)gmail(dot)com, pgsql-jdbc(at)postgresql(dot)org
- Subject: Re: Problem
- Date: Tue, 31 Mar 2009 21:31:34 +1300
- Message-id: <49D1D4E6.8000709@opencloud.com> <text/plain>
Albe Laurenz wrote: > Mauricio Solis wrote: >> I have a problem wiht de driver. >> >> If the IP address of the postgresql server is wrong, then the aplication >> take a lot of time in finish, iven I try to set >> DriverManager.setLoginTimeout(3), but the problem still. >> >> I used a sniffer (tcpdump) and I realiced that my java aplication insist >> in try to connect to the wrong IP. How I can finish the aplication when >> the IP server is wrong ??? > > I don't think that you run into the login timeout here, you rather encounter > a TCP timeout. Before JDBC can connect, a TCP connection must be established. > Since the destination IP address does not exist, your computer is sending > SYN requests that do not receive an answer until the TCP layer "gives up". Yes, but if you set a login timeout the driver will do the connect in a separate thread, so while that thread is indeed blocked waiting for a TCP-level timeout, the main application thread should not remain blocked. Mauricio, do you have a testcase that shows the problem? -O
- References:
- Problem
- From: Mauricio Solis
- Re: Problem
- From: Albe Laurenz
- Problem
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