Hi Tom I installed CentOS 4.4 final late last year. The kernel version was the latest about a year back. I have been running yum updates and applying patches regularly. Can you give me any ideas on how to troubleshoot (and establish that this issue is due to a kernel bug) the kernel packet drops? I am beginning to think it is a firewall related issue. But I have been unable to replicate the issue! I have been monitoring the firewall logs (could not find much there). Maybe I will also sifting through the messages log on the servers. Will post if I find anything! Thanks Srini -----Original Message----- From: Tom Lane [mailto:tgl@xxxxxxxxxxxxx] Sent: Tuesday, May 01, 2007 6:52 PM To: ksrinivas@xxxxxxxxxxxx Cc: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: [ADMIN] Intermittent Postgres Connection refused Errors (JDBC) "Srinivas Kotapally" <ksrinivas@xxxxxxxxxxxx> writes: > I am managing an application that uses the Postgres backend. Of late > we have started getting connection refused errors every now and then. > We have not been able to identify the cause of this. Any hints or > known bugs that I should be aware of? Thanks for any help extended! "Connection refused" means it was refused at the kernel level; if the postmaster had rejected the connection the message would be different. So you need to be looking for OS-level issues. Given that you seem to be running a rather hoary kernel (2.6.9 is a ways back no?), maybe an update there is indicated. Firewall problems are a possibility too. regards, tom lane
