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MariaDB 10.0.32 and Connectors now available

The MariaDB project is pleased to announce the immediate availability of MariaDB 10.0.32, as well as the recent releases of as MariaDB Connector/ODBC 3.0.1 (beta), MariaDB Connector/J 2.1.0 and MariaDB Connector/J 1.6.3. See the release notes and changelog for details. Download MariaDB 10.0.32 Release Notes Changelog What is MariaDB 10.0? MariaDB APT and YUM Repository […]

The post MariaDB 10.0.32 and Connectors now available appeared first on MariaDB.org.

How to Install MySQL Server with phpMyAdmin on FreeBSD 11

In this tutorial, we will install MySQL with phpMyAdmin along with Apache web server with PHP 5.6. MySQL is a free and open source relational management system. It stores data in tabular format. It is the most popular way of storing the data into the database. phpMyAdmin is also a free and open source application used to administrate a MySQL server instance through a rich graphical user interface.

An Adventure in InnoDB Table Compression (for read-only tables)

In my last post about big MySQL deployments, I am quickly mentioning that InnoDB compression is allowing dividing disk usage by about 4.3 on a 200+ TiB dataset.  In this post, I will give more information about this specific use case of InnoDB table compression and I will share some statistics and learnings on this system and subject.  Note that I am not covering InnoDB page compression which is

MySQL Group Replication: read your own write across the group

Today is my last day in Asia (China and Taiwan), and between the sessions I had the time to code a small proof-of-concept for people that are asking how they could read their writes on all nodes and ensure the read consistency with their last write ?

The usual (and easier) answer to this particular question is to read on the same host you just wrote. But currently MySQL provides you all the elements to force a consistent read across all the nodes of a group.

Since MySQL 5.7.5, we introduced session_track_gtidsand in 5.7.6 we also introduced  GTIDs context to the OK packet (session tracker) (WL#6128 and WL#6972). So we can use this implementation in …

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Saturation Metrics in PMM 1.2.0

One of the new graphs added to Percona Monitoring and Management (PMM) is saturation metrics. This blog post explains how to use the information provided by these graphs.

You might have heard about Brendan Gregg’s USE Method  (Utilization-Saturation-Errors) as a way to analyze the performance of any system. Our goal in PMM is to support this method fully over time, and these graphs take us one step forward.

When it comes to utilization, there are many graphs available in PMM. There is the CPU Usage graph: …

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ProxySQL and MySQL 8.0.2 (la suite)

Recently I wrote a blog post on how to use ProxySQL with 8.0.2 dmr

This blog post was related to the change we implemented in the Group Replication’s monitoring (performance_schema tables) and how sys schema should be changed to modify the view used by ProxySQL according.

However, I used my labs machines that I was using for different purposes too and some changes I made hid a problem that avoid ProxySQL to work with the new defaults in MySQL 8.0.2. Thank you Andy for discovering this.

In fact the new collation default (utf8mb4_0900_ai_ci) is not yet supported by ProxySQL

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PHP jquery datatables with mysql database example from scratch

Today i am going to share with you how to use jQuery datatable plugin in php mysql project i will also describe small example of data table with server side scripting here i will use PHP and MySQL to get data from server side So you have to simple follow few step and will get small quick example

PHP jquery datatables with mysql database example from scratch

Today i am going to share with you how to use jQuery datatable plugin in php mysql project i will also describe small example of data table with server side scripting here i will use PHP and MySQL to get data from server side So you have to simple follow few step and will get small quick example

Comment on MySQL High Available with MHA by pankaj

Is it possible for two mysql server one is master and second is slave ?

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Recovering MySQL replication after error 1236

Error 1236 looks like this from SHOW SLAVE STATUS:

Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: ‘Client requested master to start replication from position > file size’

In other words, the replica is requesting data at a certain point in the log (its current position), but the master’s log file doesn’t reach that point (so there are missing entries). Replication stops because because this is a logic error: if a replica is caught up to X, then the master must have been at at least X, but it’s not! One reason why this may happen is if MySQL hasn’t flushed all of the data in the binlog to disk.

When might MySQL do that? When sync_binlog = 0. Read more about that variable in the MySQL docs.

Diagnosis

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