01-25-2017
I recommend these options:
- Keep track at the Tomcat memory usage. E. g. with the nagios or any other plugin:
check_tomcat.pl - Nagios Exchange
- Check the web-site the tomcat is providing(if it is a website) or use simple application requests to your tomcat whatever that maybe. If the tomcat does not respond it's obviously dead.
- Check for a running java-process meeting the criteria of you tomcat process
Maybe one want not only to know when an application is dead, but also how healthy that application is(memory usage, response time,...)
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LEARN ABOUT DEBIAN
netsds::app::smtpd
NetSDS::App::SMTPD(3pm) User Contributed Perl Documentation NetSDS::App::SMTPD(3pm)
NAME
NetSDS::App::SMTPD
SYNOPSIS
use NetSDS::App::SMTPD
Packages
NetSDS::App::SMTPD::Socket
Needs for work with socket. This module is a parent for NetSDS::App::SMTPD and NetSDS::App::SMTPD::Client and a child of a NetSDS::APP
ITEMS
create_socket
Creating a simple socket which could be transformed into a listening in NetSDS::App::SMTPD and could be used in
NetSDS::App::SMTPD::Client for accept connection
can_read
This method uses for making a timeout before connections to the server: if there is no connections to accept, program would be just
waiting in select while the connection appeared.
close_socket
Close socket
NetSDS::App::SMTPD::Client
Provides the smtp protocol bu using Net::Server::Mail::SMTP. Had attributes: smtp - an object of Net::Server::Mail::SMTP, ip - ip of the
remote host, headers - ref hash with headers of a message, msg - a body of a message.
ITEMS
set_callback and process
All that subs do - its only call the methods of a Net::Server::Mail::SMTP with the same name.
get_mail
In this sub we parse message and set headers of the object and message body. This sub is call as a callback on event DATA
get_header and get_msg
Get methods that make you access to a header of a msg and message body. Example: $client->get_header('FROM') or
$client->get_header('to');
NetSDS::App::SMTPD
This module init a smtp-server.
ITEMS
create_socket
Init a listening socket by creating a simple socket Super::create_socket and make it listening.
data Takes - a message that has been received, parses them and prepare the structure of headers, body for next actions
accept Waiting for an smtp connection and that accept it.
data
process
Example
#!/usr/bin/env perl
use strict;
use warnings;
Receiver->run(
infinite => 1,
debug => 1,
verbose => 1,
conf_file => '../conf/mts-receiver.conf',
);
1;
package Receiver;
use base 'NetSDS::App::SMTPD';
sub process {
my $self = shift;
my $client = $self->SUPER::process;
#do something with msg;
my $from = $client->get_header('from');
my $msg = $client->get_msg;
.....
return $self;
};
or you could reinit process like this:
sub process {
my $self = shift;
my $client = $self->accept;
return unless $client;
$client->process;
#do something
......
$client->close;
return $self;
};
AUTHOR
Yana Kornienko <yana@netstyle.com.ua>
perl v5.10.1 2010-04-28 NetSDS::App::SMTPD(3pm)