Re: "Cannot prepare error statement" error

["David A. Bandel" <..hidden..>]

On Thu, Oct 16, 2008 at 10:16 AM, Chris Travers <..hidden..> wrote:
> On Thu, Oct 16, 2008 at 3:14 AM, ..hidden.. <..hidden..> wrote:
>> I'm getting the same issue.
>> *
>> menu.pl:88: Cannot prepare empty statement at /usr/lib/perl5/DBD/Pg.pm
>> line 249.
>>
>> *I increased the timeout and that doesn't appear help. I can't reliably
>> reproduce the error but it doesn't seem to be limited by inactivity. If
>> I randomly click pages then shortly I will get the error, and a relog is
>> required.
>>
>> The database is logging lines like:
>> 2008-10-15 20:12:49 BST LOG:  could not receive data from client:
>> Connection reset by peer
>> 2008-10-15 20:12:49 BST LOG:  unexpected EOF on client connection
>>
>> This is a fresh install from a Debian package.
>> Package: ledgersmb
>> Version: 1.2.16-1
>
> I have never seen this problem before.  However, this looks like a
> hardware or a libpq or a DBD::Pg library issue.  I.e. what is
> evidently happening is that the connection from the CGI script to the
> db is dropping for some reason.  This could be caused by a network
> issue between the web and database servers if they are on separate
> boxes, a kernel issue (involving networking support), or a library
> which sits between the systems (these are, in order, DBI, DBD::Pg, and
> libpq).  As I have never had issues of this sort from the Linux kernel
> in the absence of hardware failures, I am inclined to look to other
> causes first.
>
> Typically everything we do is quite a bit higher on the stack than
> resetting network connections, so this is unlikely to be an issue with
> LSMB.
>

I've seen this with a client.  They _insist_ on double-clicking on everything.

<rant>
(I hate the Windoze way -- I sit waiting and waiting after clicking
once on an icon and NOTHING HAPPENS! -- after about 15 minutes I wake
up and realize I have to double-click the stupid thing).
</rant>

Anyway, bang on their fingers when they double-click until they stop
the double-click nonsense.  They'll get this error EVERY TIME they
insist on double clicking.  Click once and wait.

Ciao,

David A. Bandel
-- 
Focus on the dream, not the competition.
            - Nemesis Air Racing Team motto