Sponsored Content
Special Forums UNIX and Linux Applications Infrastructure Monitoring Using Node-RED and MQTT to Monitor Server and Application Stats Post 303043726 by Neo on Wednesday 5th of February 2020 05:52:01 AM
Old 02-05-2020
Expanded the dashboard a bit, and found the time series data helpful in tracking down some nagging performance issues.

The time series charts in these screen shots illustrate two brief performance hits. Since these hits happen at the top of the hours, I looked carefully a the application scheduled tasks and found a number of "clean up" tasks which were not an issue with the DB was small, but with a large DB these "clean up" hourly scheduled tasks can slow the site down.

So, I moved around five clean-up tasks to Saturday and Sunday, since moving these batch jobs to the weekend will not effect the application very much, but does improve performance quite a bit.

Using Node-RED and MQTT to Monitor Server and Application Stats-screen-shot-2020-02-05-54437-pmjpg


Using Node-RED and MQTT to Monitor Server and Application Stats-screen-shot-2020-02-05-54333-pmjpg
 

7 More Discussions You Might Find Interesting

1. AIX

How to add node to the cluster with stoping the application?

In the production hacmp 5.3 is running with three nodes but i want to add new node to cluster with out stopping the application ie with same resource group if any bady know pls help me. (1 Reply)
Discussion started by: manjunath.m
1 Replies

2. AIX

powerha application monitor restart counter?

I have configured a custom application monitor with restart count = 3. say the application has restarted 2 times, if the application fail 2 more times within restart interval, it will failover. Is there any counter to tell me the recent restart count? Thanks!! (1 Reply)
Discussion started by: skeyeung
1 Replies

3. Homework & Coursework Questions

Accessing one UNIX node from another node of the same server

Hi Experts, I am in need of running a script from one node say node 1 via node 2. My scheduling tool dont have access to node2 , so i need to invoke the list file from node1 but the script needs to run from node2. because the server to which i am hitting, is having access only for the node... (5 Replies)
Discussion started by: arun1377
5 Replies

4. Red Hat

Red Hat application server ssl keystore problem

A client is accessing our JBoss server. In the past, we set up a keystore and everything worked fine. That certificat expired and we've installed the new one. Now the client is getting the following error - HTTP/1.1 500 Internal Server Error Date: Mon, 14 Apr 2014 13:25:44 GMT Server:... (1 Reply)
Discussion started by: kkinney
1 Replies

5. Programming

ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages

Here we go.... Preface: ..... so in a galaxy far, far, far away from commercial, data sharing corporations..... For this project, I used the ESP-WROOM-32 as an MQTT (publish / subscribe) client which receives Linux server "load averages" as messages published as MQTT pub/sub messages.... (6 Replies)
Discussion started by: Neo
6 Replies

6. Programming

Publish and Subscribe to AES-256 Encrypted MQTT Messages to Node-RED from PHP Scripts

Various Node-Red crypto modules do not work with PHP, so to send an encrypted message from a PHP script (in this case from a Ubuntu server) to Node-RED we need our own code. After a few hours of searching, testing various libs, more testing and debugging, I got this PHP to Node-RED code... (0 Replies)
Discussion started by: Neo
0 Replies

7. Programming

Node-RED: Writing MQTT Messages to MySQL DB with UNIX timestamp

First, I want to thank Neo (LOL) for this post from 2018, Node.js and mysql - ER_ACCESS_DENIED_ERROR I could not get the Node-RED mysql module to work and searched Google until all my links were purple! I kept getting ER_ACCESS_DENIED_ERROR with the right credentials. Nothing on the web was... (0 Replies)
Discussion started by: Neo
0 Replies
Server::Client(3pm)					User Contributed Perl Documentation				       Server::Client(3pm)

NAME
Net::SMTP::Server::Client - Client session handling for Net::SMTP::Server. SYNOPSIS
use Carp; use Net::SMTP::Server; use Net::SMTP::Server::Client; use Net::SMTP::Server::Relay; $server = new Net::SMTP::Server('localhost', 25) || croak("Unable to handle client connection: $! "); while($conn = $server->accept()) { # We can perform all sorts of checks here for spammers, ACLs, # and other useful stuff to check on a connection. # Handle the client's connection and spawn off a new parser. # This can/should be a fork() or a new thread, # but for simplicity... my $client = new Net::SMTP::Server::Client($conn) || croak("Unable to handle client connection: $! "); # Process the client. This command will block until # the connecting client completes the SMTP transaction. $client->process || next; # In this simple server, we're just relaying everything # to a server. If a real server were implemented, you # could save email to a file, or perform various other # actions on it here. my $relay = new Net::SMTP::Server::Relay($client->{FROM}, $client->{TO}, $client->{MSG}); } DESCRIPTION
The Net::SMTP::Server::Client module implements all the session handling required for a Net::SMTP::Server::Client connection. The above example demonstrates how to use Net::SMTP::Server::Client with Net::SMTP::Server to handle SMTP connections. $client = new Net::SMTP::Server::Client($conn) Net::SMTP::Server::Client accepts one argument that must be a handle to a connection that will be used for communication. Once you have a new client session, simply call: $client->process This processes an SMTP transaction. THIS MAY APPEAR TO HANG -- ESPECIALLY IF THERE IS A LARGE AMOUNT OF DATA BEING SENT. Once this method returns, the server will have processed an entire SMTP transaction, and is ready to continue. Once $client->process returns, various fields have been filled in. Those are: $client->{TO} -- This is an array containing the intended recipients for this message. There may be multiple recipients for any given message. $client->{FROM} -- This is the sender of the given message. $client->{MSG} -- The actual message data. :) AUTHOR AND COPYRIGHT Net::SMTP::Server / SMTP::Server is Copyright(C) 1999, MacGyver (aka Habeeb J. Dihu) <macgyver@tos.net>. ALL RIGHTS RESERVED. You may distribute this package under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file. SEE ALSO
Net::SMTP::Server::Server, Net::SMTP::Server::Relay perl v5.10.1 1999-12-28 Server::Client(3pm)
All times are GMT -4. The time now is 10:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy