LP #1103155: Percona-Server-shared-compat required for pt-deadlock-logger

**Reported in Launchpad by Keith Murphy last update 30-10-2013 23:48:16

We recently upgraded from Percona-Server 5.1 to 5.5. I noticed today that pt-deadlock-logger was not running. We have it deployed/daemonized to run every 30 seconds. On every server it was not running. Trying to restart it produce the following:

1. pt-deadlock-logger --create-dest-table --dest D=admin,t=deadlocks h=127.0.0.1
   Had to create DBD::mysql::dr::imp_data_size unexpectedly at /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi/DBI.pm line 1190.
   Had to create DBD::mysql::db::imp_data_size unexpectedly at /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi/DBI.pm line 1190.
   Undefined subroutine &DBD::mysql::db::_login called at /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi/DBD/mysql.pm line 140.
   #

This error seemed to indicate that authentication was failing however the users on the systems didn't change.

After a bit of thought i realized that previously I had the shared-compat package installed with Percona Server 5.1 and only installed the shared package with 5.5. Installing the shared-package resolved the issue.

Apparently something in the shared-compatability package (a libmysqlclient i assume) is required for pt-deadlock-logger. If this is true, then the shared-compatability package should be a requirement for installation of the toolkit.