Re: Questions about connection clean-up and "invalid page header"

[Herouth Maoz <herouth@xxxxxxxxxxxxx>]

Scott Marlowe wrote:

You can shorten the tcp_keepalive settings so that dead connections
get detected faster.
  

Thanks, I'll ask my sysadmin to do that.

Might be, but not very likely.  I and many others run pgsql in
production environments where it handles thousands of updates /
inserts per minute with no corruption.  We run on server class
hardware with ECC memory and large RAID arrays with no corruption.
  

Someone pointed out to me, though, that comparing data warehouse systems to production systems is like Apples and Oranges - we also have a production system that, as you say, makes millions of inserts and updates per hour. It works very well with PostgreSQL - a lot better than with Sybase with which we worked previously. But the reports system on which I work makes bulk inserts using calculations based on complicated joins and each transaction is long and memory-consuming, as opposed to the production system, where each transaction takes a few milliseconds and is cleared immediately.

So far this only happened to me in the development server, and if it really is a matter of hardware, I'm not worried. What I am worried is if there really is some sort of bug that may carry to our production reports system.

Have you run something as simple as memtest86+ on your machine to see
if it's got bad memory?
  

I'll tell my sysadmin to do that. Thank you.

We are currently using PostgreSQL v. 8.3.1 on the server side.
    

You should really update to the latest 8.3.x version (around 8.3.8 or
so).  It's simple and easy, and it's possible you've hit a bug in an
older version of 8.3.
  

OK, I'll also try to get that done.

Thanks for your help,
Herouth