Monitoring

Table of contents

• Review
• One month later
• Size of the tables
• Process list
• Global variables
• Metadata Lock and InnoDB Transaction Lock
• Global status

Review

After we introduced dbstat for MariaDB (and MySQL) a good 5 weeks ago, we naturally also rolled it out on our systems to test the behaviour in daily use (eat your own dog food).

This went quite well until we came up with the idea of activating dbstat on the passive dbstat node on our MariaDB active/passive master/master replication cluster (a similar …

Table of contents

• Functionality of dbstat
• How does dbstat work
• How to install dbstat
• Query dbstat
  • table_size
  • processlist
  • trx_and_lck
  • metadata_lock
  • global_variables
  • global_status
• Testing
• Sources

An idea that I have been thinking about for a long time and have now, thanks to a customer, finally tackled is dbstat for MariaDB/MySQL. The idea is based on sar/sysstat by Sebastien Godard:

sar - Collect, report, or save system activity information.

and Oracle Statspack:

Statspack is a performance tuning …

FromDual has the pleasure to announce the release of the new version 2.1.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

The FromDual Performance Monitor for MariaDB (fpmmm) enables DBAs and System Administrators to monitor and understand what is going on inside their MariaDB database instances and on the machines where the databases reside.

More detailed information you can find in the fpmmm Installation Guide.

Download

The new FromDual Performance Monitor for MariaDB ( …

FromDual has the pleasure to announce the release of the new version 2.0.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

The FromDual Performance Monitor for MariaDB (fpmmm) enables DBAs and System Administrators to monitor and understand what is going on inside their MariaDB database instances and on the machines where the databases reside.

More detailed information you can find in the fpmmm Installation Guide.

Download

The new FromDual Performance Monitor for MariaDB ( …

Nearly everybody does backups. But nobody needs backups! What everybody wants and needs is a working restore not a working backup…

So how to make sure that your backup is working for the restore? There are a few things you can do already during your backup:

• Check that your backup was running fine. For example by checking the return code of your backup.
• Check the runtime of your backup. If the runtime of your backup significantly changed, it is worth to have a closer look at the backup.
• Check the …

Table of Contents

• What is SNMP?
• SNMP Agent (snmptrap)
• SNMP Manager (snmptrapd)
• Test the SNMP Agent
• Creating your own MIB
• Sending MariaDB SNMP traps from PHP
• Literature

What is SNMP?

A customer recently had the question if an how his MariaDB database can be easily monitored with SNMP?

SNMP means Simple Network Management Protocol. It is a widely used and standardized protocol for monitoring the health of network and other devices (including services). In principle you can monitor nearly everything with …

FromDual has the pleasure to announce the release of the new version 1.2.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

The FromDual Performance Monitor for MariaDB (fpmmm) enables DBAs and System Administrators to monitor and understand what is going on inside their MariaDB database instances and on the machines where the databases reside.

More detailed information you can find in the fpmmm Installation Guide.

Download

The new FromDual Performance Monitor for MariaDB ( …

FromDual has the pleasure to announce the release of the new version 1.2.0 of its popular Database Performance Monitor for MySQL fpmmm.

The FromDual Performance Monitor for MySQL (fpmmm) enables DBAs and System Administrators to monitor and understand what is going on inside their MySQL database instances and on the machines where the databases reside.

More detailed information you can find in the fpmmm Installation Guide.

Download

The new FromDual Performance Monitor for MySQL (fpmmm) can be downloaded …

FromDual hat die Version 1.1.0 des Performance Monitors für MariaDB, MySQL und Galera Cluster (fpmmm) freigegeben.

Dieser Performance Monitor ermöglicht es DBAs und Systemadministratoren einen tiefen Einblick in das Innenleben der Datenbank und des Servers, auf dem sich die Datenbank befindet, zu erhalten.

Die neue Version steht hier zum Download bereit.

Falls Sie sich die Mühe sparen wollen, eine eigene Monitoring-Infrastruktur aufzubauen, nutzen Sie doch einfach unsere kostengünstige …

FromDual has the pleasure to announce the release of the new version 1.1.0 of its popular Database Performance Monitor for MariaDB, MySQL and Galera Cluster fpmmm.

The FromDual Performance Monitor for MariaDB and MySQL (fpmmm) enables DBAs and System Administrators to monitor what is going on inside their MariaDB and MySQL databases and on their machines where the databases reside.

More detailed information your can find in the fpmmm Installation Guide.

Download

The new FromDual Performance Monitor for …

FromDual has the pleasure to announce the release of the new version 1.0.2 of its popular Database Performance Monitor for MariaDB, MySQL, Galera Cluster and Percona Server fpmmm.

The new FromDual Performance Monitor for MariaDB and MySQL (fpmmm) can be downloaded from here. How to install and use fpmmm is documented in the fpmmm Installation Guide.

In the inconceivable case that you find a bug in the FromDual Performance Manager for MariaDB and MySQL please report it the FromDual Bugtracker or just send us …

FromDual has the pleasure to announce the release of the new version 1.0.1 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in the fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various bug fixes.

Changes in fpmmm v1.0.1

fpmmm agent

• Fpmmm suppresses …

FromDual has the pleasure to announce the release of the new version 1.0.0 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various bug fixes and improvements. Further significant functionality has …

FromDual has the pleasure to announce the release of the new version 0.10.6 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various bug fixes and improvements. The previous release had some major bugs …

FromDual has the pleasure to announce the release of the new version 1.0.1 of the FromDual Nagios and Icinga plugins for MySQL, Galera Cluster and MariaDB.

Download

The new FromDual Nagios plugins can be downloaded here.

In the inconceivable case that you find a bug in the FromDual Nagios plugins please report it to our bug tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to [feedback@fromdual.com](mailto:feedback@fromdual.com?Subject=Feedback for Nagios plugins). …

FromDual has the pleasure to announce the release of the new version 0.10.5 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various bug fixes and improvements. The previous release had some major bugs …

FromDual has the pleasure to announce the release of the new version 0.10.4 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various minor bug fixes and improvements.

New installation of fpmmm v0.10.4 …

FromDual has the pleasure to announce the release of the new version 0.10.1 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various minor bug fixes and improvements. Mainly it was a rewrite from Perl …

MySQL Enterprise Monitor (MEM) has by default no Event Handlers created and activated. These Event Handlers you have to define yourself according to your needs.

In this article we discuss how to create MySQL Enterprise Monitor Event Handlers with MEM v.3.0.18. For other (older) versions the steps may vary…

Task: Event Handler for maximum Connections reached

We would like to be notified by MySQL Enterprise Monitor when the number of connections is near to max_connections.

For this we search first …

FromDual tools provide valuable additional functionality which facilitate and optimize daily operations of your MySQL databases. Since our last newsletter a lot of things have changed in the FromDual tools.

To the MySQL Environment (MyEnv) numerous improvements and suggestions of our customers were added. The most important changes were introduced to the MySQL Backup Manager (mysql_bman).

With the MySQL Ops Center we meet the wishes of our numerous customers, which desire a graphical user interface for …

FromDual has the pleasure to announce the release of the new version 0.9.3 of its popular Database Performance Monitor for MySQL, Galera Cluster, MariaDB and Percona Server fpmmm.

This release contains various minor bug fixes and improvements.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bugtracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

New installation of fpmmm v0.9.3 …

FromDual has the pleasure to announce the release of the new version 0.9.2 of its popular Database Performance Monitor for MySQL, MariaDB and Percona Server mpm.

This release makes mpm compatible with Zabbix v2.2 and contains various minor bug fixes and improvements.

You can download mpm from here.

In the inconceivable case that you find a bug in mpm please report it to our Bugtracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

New installation …

Based on customer feedback we have decided to add a plugin Galera Cluster for MySQL to our MySQL Nagios/Icinga Plugins.

The module checks, if the node is in status Primary and if the expected amount of Galera Cluster nodes is available. If not, a warning or an alarm is returned.

The script is written in Perl and is Nagios Plugin API v3.0 compatible.

You can download it from our download page.

If you have suggestions for improvements, please contact us. Bugs can be reported at our bugs database.

The …

On April 2^nd 2012 FromDual released the new version v0.9 of its Performance Monitor for MySQL (mpm). The new version can be downloaded from here.

The Performance Monitor for MySQL (mpm) is an agent which is hooked into Zabbix. Zabbix is an integrated Enterprise Monitoring solution which can produce performance graphs and alerting.

The changes in the new release are:

New functionality

• A new server module gathers MySQL database specific server informations. This is especially interesting for the Monitoring …

Many of you may monitor their databases for different purposes. Beside alerting it is often good to also make some graphs from MySQL performance counters to see what is actually happening on your database.

The following graphs where made with our FromDual Performance Monitor for MySQL as a Service (MaaS) set-up. If you do not have the time to install a performance monitoring yourself please feel free to contact us for our MaaS solution.

Overview

First of all it is a good idea to have an overview of all the …

How to test MySQL Monitoring as Service (MaaS) for free?

To get MaaS for MySQL follow these steps:

• Request a MaaS trial service key. It will take up to 48 hours until you receive it. We only hand out trial service keys if your data are filled in correctly.
• Download the Performance Monitor for MySQL.
• Install the Performance Monitor for MySQL. The installation documentation is here.
• Run the Performance Monitor for MySQL with the configuration file we provide you by e-mail.

What is Monitoring as a Service …

On January 9^th FromDual launched its Monitoring as a Service (MaaS) solution for MySQL. This service is based on the Performance Monitor for MySQL (mpm) v0.8 and Zabbix.

The installation on customer side of the so called monitoring agent takes about 5 minutes (for installation, configuration and scheduling).

The collected performance data are sent to our service where you can view them with your web browser. Some examples you can find here.

You can download the Performance Monitor for MySQL from our …