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package DBD::MySQL::Server::Instance::Replication;
use strict;
our @ISA = qw(DBD::MySQL::Server::Instance);
my %ERRORS=( OK => 0, WARNING => 1, CRITICAL => 2, UNKNOWN => 3 );
my %ERRORCODES=( 0 => 'OK', 1 => 'WARNING', 2 => 'CRITICAL', 3 => 'UNKNOWN' );
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
internals => undef,
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::instance::replication/) {
$self->{internals} =
DBD::MySQL::Server::Instance::Replication::Internals->new(%params);
}
}
sub nagios {
my $self = shift;
my %params = @_;
if ($params{mode} =~ /server::instance::replication/) {
$self->{internals}->nagios(%params);
$self->merge_nagios($self->{internals});
}
}
package DBD::MySQL::Server::Instance::Replication::Internals;
use strict;
our @ISA = qw(DBD::MySQL::Server::Instance::Replication);
our $internals; # singleton, nur ein einziges mal instantiierbar
sub new {
my $class = shift;
my %params = @_;
unless ($internals) {
$internals = {
handle => $params{handle},
seconds_behind_master => undef,
slave_io_running => undef,
slave_sql_running => undef,
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
};
bless($internals, $class);
$internals->init(%params);
}
return($internals);
}
sub init {
my $self = shift;
my %params = @_;
$self->debug("enter init");
$self->init_nagios();
if ($params{mode} =~ /server::instance::replication::slavelag/) {
# "show slave status", "Seconds_Behind_Master"
my $slavehash = $self->{handle}->selectrow_hashref(q{
SHOW SLAVE STATUS
});
if ((! defined $slavehash->{Seconds_Behind_Master}) &&
(lc $slavehash->{Slave_IO_Running} eq 'no')) {
$self->add_nagios_critical(
"unable to get slave lag, because io thread is not running");
} elsif (! defined $slavehash->{Seconds_Behind_Master}) {
$self->add_nagios_critical(sprintf "unable to get replication info%s",
$self->{handle}->{errstr} ? $self->{handle}->{errstr} : "");
} else {
$self->{seconds_behind_master} = $slavehash->{Seconds_Behind_Master};
}
} elsif ($params{mode} =~ /server::instance::replication::slaveiorunning/) {
# "show slave status", "Slave_IO_Running"
my $slavehash = $self->{handle}->selectrow_hashref(q{
SHOW SLAVE STATUS
});
if (! defined $slavehash->{Slave_IO_Running}) {
$self->add_nagios_critical(sprintf "unable to get replication info%s",
$self->{handle}->{errstr} ? $self->{handle}->{errstr} : "");
} else {
$self->{slave_io_running} = $slavehash->{Slave_IO_Running};
}
} elsif ($params{mode} =~ /server::instance::replication::slavesqlrunning/) {
# "show slave status", "Slave_SQL_Running"
my $slavehash = $self->{handle}->selectrow_hashref(q{
SHOW SLAVE STATUS
});
if (! defined $slavehash->{Slave_SQL_Running}) {
$self->add_nagios_critical(sprintf "unable to get replication info%s",
$self->{handle}->{errstr} ? $self->{handle}->{errstr} : "");
} else {
$self->{slave_sql_running} = $slavehash->{Slave_SQL_Running};
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /server::instance::replication::slavelag/) {
$self->add_nagios(
$self->check_thresholds($self->{seconds_behind_master}, "10", "20"),
sprintf "Slave is %d seconds behind master",
$self->{seconds_behind_master});
$self->add_perfdata(sprintf "slave_lag=%d;%s;%s",
$self->{seconds_behind_master},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /server::instance::replication::slaveiorunning/) {
if (lc $self->{slave_io_running} eq "yes") {
$self->add_nagios_ok("Slave io is running");
} else {
$self->add_nagios_critical("Slave io is not running");
}
} elsif ($params{mode} =~ /server::instance::replication::slavesqlrunning/) {
if (lc $self->{slave_sql_running} eq "yes") {
$self->add_nagios_ok("Slave sql is running");
} else {
$self->add_nagios_critical("Slave sql is not running");
}
}
}
}
1;
|
