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Displaying posts with tag: MySQL monitoring (reset)
The wish list for secure and effective monitoring of MySQL servers

 All you need for monitoring MySQL servers

Data security is paramount for individuals and corporations alike. Today, it is inevitable not to notice the importance levied on hosted MySQL like RDS, Aurora, etc. Managing MySQL servers is becoming a daunting task, given the exponential growth in data and the number of users with each working days.

Below are the key aspects that need to be part of your wishlist.

1) Leveraging Performance Schema(P_S) and SYS Schema

Performance Schema was introduced in MySQL 5.5.3 and further upgraded through version 5.7. It has its own storage engine, provides access to low-level server execution information while minimizing the impact on server performance. There is a trade-off between the time you can save by using Performance Schema and the load it adds to the server. It can optimize server performance and save time when used in an efficient manner.

You can also target …

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The wish list for secure and effective monitoring of MySQL servers

All you need for monitoring MySQL servers. Data security is paramount for individuals and corporations alike. Today, it is inevitable not to notice the importance levied on hosted MySQL like RDS, Aurora, etc. Managing MySQL servers is becoming a daunting task, given the exponential growth in data and the number of users with each working days.

Below are the key aspects that need to be part of your wishlist.

1) Leveraging Performance Schema(P_S) and SYS Schema

Performance Schema was introduced in MySQL 5.5.3 and further upgraded through version 5.7. It has its own storage engine, provides access to low-level server execution information while minimizing the impact on server performance. There is a trade-off between the time you can save by using Performance Schema and the load it adds to the server. It can optimize server performance and save time when used in an efficient manner.

You can also target queries that …

[Read more]
Data loss after MySQL restart

Not so long ago I had a customer who experienced data loss after MySQL restart. It was really puzzling. MySQL was up & running for many months, but after the customer restarted MySQL server all tables have gone. The tables were still visible in SHOW TABLES output, but they were not readable:

mysql> show tables like 'actor';
+--------------------------+
| Tables_in_sakila (actor) |
+--------------------------+
| actor                    |
+--------------------------+
1 row in set (0.00 sec)

mysql> select * from actor;
ERROR 1146 (42S02): Table 'sakila.actor' doesn't exist
mysql>


To understand what’s happened let make some experiments (WARNING: Don’t do it on production or with valuable data).

Let’s take a healthy MySQL instance with installed sakila database.

While MySQL …

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7 quick MySQL performance tips for the small business

We’ve heard lots in recent years about Big Data and the alternative models of data management and processing, like Hadoop and NoSQL. But truth be told, relational databases are still the workhorses of most of today’s small and medium sized businesses. Relational DBs date back over 40 years and SQL skills are fairly common, and they’re known to be highly secure.

 

MySQL is the world’s second most popular relational database management system (RDMS) and is the most popular open-source version of the database. It’s easily accessible and is often known to be part of the LAMP web development stack, standing for the ‘M’ in the acronym of popular tools, along with Linux, Apache, and PHP/Perl/Python. The fact that MySQL is free, easy to setup and scales fast are some of the main reasons why it’s the best match for many SMBs.

 

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From zero to full visibility of MySQL in 3 minutes with Percona Cloud Tools

First, I would like to invite you to my webinar, “Monitoring All (Yes, All!) MySQL Metrics with Percona Cloud Tools,” on Wednesday, June 25 at 10 a.m. Pacific Daylight Time, where I will talk on the
new features in Percona Cloud Tools, including monitoring capabilities.

In this post I’d like to show the cool and interesting things we’ve implemented in Percona Cloud Tools, including the recently released agent that Daniel also talks about here in this post.

Basically our agent allows users to collect ALL MySQL metrics plus important …

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E-commerce – Uptime and Web apps are the keys

Since 2011 e-commerce has grown from $856,000,000.00 to closing out 2013 at more than $1,248,000,000,000.00 in global revenues, a nearly 41% growth rate over a two year span. The forecast for 2014  is targeted at $1,500,000,000,000.00, another 20% increase is gross revenues (see chart below). With trillions of dollars in play year on year now, and astounding revenue growth rates still ahead, it is critical that any e-commerce site be diligently monitoring not just their website uptime, but more importantly their Web applications. Obviously it is critical that your customers be able to get to your website, but if it doesn’t build fast and complete client requests and transactions even faster then you will be losing clients and revenue at an alarming rate. The latest figures show that if your site doesn’t do a full page load in 3 seconds or less, …

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About Nagios monitoring in real example

Now it’s time to setup proper monitoring to avoid unpleasant surprises in future.

There are two major problems the monitoring solves: alerting and trending. Alerting is to notify a responsible person about some major event like service stopped working. Trending is to track the change of something over time – disk or memory usage over time, replication lag etc.

This post will be about alerting with Nagios.

The major problem with most of Nagios setups I’ve seen is excessive amount of false positives. This kills whole idea of monitoring. The matter is when an admin gets a false alert they tend to mute it, explicitly or implicitly. They either filter alerts out or don’t treat them seriously. In general case the alert must be worth to wake up the admin in the middle of the night. If the alert isn’t worth as much the real problem will be ignored sooner or …

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Missed Any of our Changes Over The Last Three Months?

Here at Monitis, we’re on a mission to not only build the best product but also, at the same time, make it more user-friendly. We listen to your feedback and suggestions and take various steps to improve our services, tools and features to make YOUR life easier. In any given week, you can see a new feature or update in your Monitis dashboard. Here’s some of the stuff we’ve added since our last newsletter, three months ago. Stay-up-to-date and see all that we have to offer by reading about all our changes below:

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The InnoDB Quick Reference Guide is now available

I’m pleased to announce that my first book, the InnoDB Quick Reference Guide, is now available from Packt Publishing and you can download it by clicking here. It covers the most common topics of InnoDB usage in the enterprise, including: general overview of its use and benefits, detailed explanation of seventeen static variables and seven dynamic variables, load testing methodology, maintenance and monitoring, as well as troubleshooting and useful analytics for the engine. The current version of MySQL ships with InnoDB as the default table engine, so whether you program your MySQL enabled applications with PHP, Python, Perl or otherwise, you’ll likely benefit from this concise but comprehensive reference guide for InnoDB databases.

Here are the chapter overviews …

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Bash scripting: ElasticSearch and Kibana init.d scripts

As a follow up to the previous post about logstash, here are a couple of related init scripts for anyone implementing the OpenSource Log Analytics setup that is explained over at divisionbyzero. These have been tested on CentOS 6.3 and are based on generic RC functions from Redhat so they will work with Redhat, CentOS, Fedora, Scientific Linux, etc.

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