DBIx::Roles::AutoReconnect - restart DBI calls after reconnecting on failure
The role wraps all calls to DBI methods call so that any operation with DB connection handle that fails due to connection break ( server shutdown, tcp reset etc etc), is automatically reconnected.
The role is useful when a little more robustness is desired for a cheap price; the proper DB failure resistance should of course be inherent to the program logic.
use DBIx::Roles qw(AutoReconnect); my $dbh = DBI-> connect( "dbi:Pg:dbname=template1", "postgres", "password", { PrintError => 0, ReconnectTimeout => 5, ReconnectFailure => sub { warn "oops!" }, }, );
Called when a DBI method fails.
Seconds to sleep after reconnection attempt fails.
Default: 60
Max number of tries before giving up. The connections are tried indefinitely if undef.
undef
Default: 5
Transactions are not restarted if connection breaks or AutoCommit is not set.
AutoCommit
RaiseError is not called when a connection is restarted, but rather when ReconnectMaxTries tries are exhausted, and depending on RaiseError, the code dies or returns undef from the connect call. All other error-related attributes (PrintError, HandleError) are not affected.
RaiseError
ReconnectMaxTries
connect
PrintError
HandleError
DBI, DBIx::Roles, DBIx::AutoReconnect.
Copyright (c) 2005 catpipe Systems ApS. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Dmitry Karasik <dk@catpipe.net>
To install DBIx::Roles, copy and paste the appropriate command in to your terminal.
cpanm
cpanm DBIx::Roles
CPAN shell
perl -MCPAN -e shell install DBIx::Roles
For more information on module installation, please visit the detailed CPAN module installation guide.