Hi,
I have had a site working for the last 2 years and have had no problems
until at the weekend I replace my database server with a newer one. The
database migration went like a dream and I had the whole db changed over
in 1 hour.
Since the upgrade I have been getting the following error message
sporadically.
ERROR: current transaction is aborted, queries ignored until end of
transaction block
I have the following setup
Webserver:
Apache 1.3.27 (Redhat 7.2)
PHP 4.1.2
Database server (old): Postgres 7.1.3
Database server (new): Postgres 7.3.4
The PHP scripts have not changed. I am using PEAR::DB for database
access. I think it is the PEAR::DB that is actually making the
transactions because some times the error message some times gets
generated when I don't even have a transaction. Not too sure about that
though.
The funny thing is, when I first start up the web-server I don't get any
error messages and the site carries on working fine just as it did when
using the old database server.
However, after about an hour. I suddenly get 10 errors a minute from my
site (average of course) with the majority of pages still accessing
fine. After a bit more time, this doubles to 20 errors a minute. If I
carry on leaving the site, I eventually get error messages every second.
The error message seem to be generated from completely unrelated bits of
my code.
When I restart Apache the error messages go away and the site functions
as normal.
My theory is, since I am using persistent connections in PHP, a
connection is some how becoming...unstable...for the want of a better
word. That connection then returns an error on every single request.
To put my theory to test, I have turned off the persistent connections
on my site and everything appears to be working fine now. I now need to
work out where to go from here as my server load is high and I would
prefer to use persistent connections.
Has anyone experienced any similar problems with changing Postgres
versions? Do I need to upgrade my PHP on the web-server as the RedHat
postgres the PHP was built against was Postgres 7.1.3? Anyone have any
suggestions on how I can fix this?
Regards,
--
Abdul-Wahid Paterson
Lintrix Networking & Comms. ltd. Web: http://www.lintrix.net/
Tel: +44 (0) 870 285 4703 Mobile: +44 (0)7971 506177
Fax: 0870 133 0433 Email/Jabber: aw@lintrix.net
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