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Confirm persistent db connection?

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Contributed by Athalia on Sep 21, 2000 at 03:01 UTC
Q&A  > database programming


Description:

I have a web resource served by Apache with a Perl interface to a MySQL database. In order to speed things up, I am using mod_perl/Apache::DBI to create a persistent database connection in a script that is run when Apache is started.

I want to make sure that I actually have a persistent connection. The scripts that query the db were not originally written with mod_perl in mind and each one contains a db connection statement. The mod_perl guide says these will be ignored if a persistent connection exists.

The obvious way to test would be to remove these statements and see if the queries fail but I'm sure there must be a more elegant and explicit test.

Does anyone know how to do this? Is there a connection id or environment variable that I can get?

Specs:
  • MySQL 3.22.21
  • Apache 1.3.9
  • Perl 5.004_04
  • Apache::DBI 0.87
  • DBI 1.14

Thanks in advance...

[formatted by editor]

Answer: Confirm persistent db connection?
contributed by btrott

Turn on Apache::DBI debugging. From the docs:

To enable debugging the variable $Apache::AuthDBI::DEBUG must be set. This can either be done in startup.pl or in the user script. Setting the variable to 1, just reports about a new connect. Setting the variable to 2 enables full debug output.

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