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Displaying posts with tag: mysql (reset)

Second MySQL User Group Korea meeting
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We are pleased to announce the second MySQL User Group meeting in Seoul, South Korea.

This time Daesang Information & Technology sponsors venue and snack. Please find more information below.

Date & Time: 29th Aug, 2014, 7pm to 9 pm

VenueTOZ Kangnam tower, 2nd floor

Agenda:

1. MySQL Fabric intro

2. MySQL Cluster intro & demo

3. Select MUG Staff

See more details

We are looking forward to talking to you! 

OpenStack Trove Day 2014 Recap: MySQL and DBaaS
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OpenStack Trove Day

I just returned from a week in Cambridge, Massachusetts where I was attending the OpenStack Trove Day and the Trove mid-cycle meetup, both sponsored by the great folks at Tesora.

I am relatively new to the OpenStack and Trove arenas so this was a fantastic opportunity for me to learn more about the communities, the various components within OpenStack, and what part Trove plays. I found the entire event very worthwhile – I met a lot of key people in the community, learned more about Trove and its potential, and in general felt a great energy and

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OpenStack Trove Day 2014 Recap: MySQL and DBaaS
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OpenStack Trove Day

I just returned from a week in Cambridge, Massachusetts where I was attending the OpenStack Trove Day and the Trove mid-cycle meetup, both sponsored by the great folks at Tesora.

I am relatively new to the OpenStack and Trove arenas so this was a fantastic opportunity for me to learn more about the communities, the various components within OpenStack, and what part Trove plays. I found the entire event very worthwhile – I met a lot of key people in the community, learned more about Trove and its potential, and in general felt a great energy and excitement surrounding

  [Read more...]
Resources for Database Clusters: Performance Tuning for HAProxy, Support for MariaDB 10, Technical Blogs & More
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August 28, 2014 By Severalnines

Check Out Our Latest Resources for MySQL, MariaDB & MongoDB Clusters

 

Here is a summary of resources & tools that we’ve made available to you in the past weeks. If you have any questions on these, feel free to contact us!

 

New Technical Webinars

 

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Trawling the binlog with FlexCDC and new FlexCDC plugins for MySQL
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Swanhart-Tools includes FlexCDC, a change data capture tool for MySQL. FlexCDC follows a server’s binary log and usually writes “changelogs” that track the changes to tables in the database. I say usually because the latest version of Swanhart-Tools (only in github for now) supports FlexCDC plugins, which allow you to send the updates to a remote data source, or to any other place of your liking.  You can find out more about FlexCDC basics in a previous blog post.

Please note that FlexCDC still needs to have source and destination

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Trawling the binlog with FlexCDC and new FlexCDC plugins for MySQL
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Swanhart-Tools includes FlexCDC, a change data capture tool for MySQL. FlexCDC follows a server’s binary log and usually writes “changelogs” that track the changes to tables in the database. I say usually because the latest version of Swanhart-Tools (only in github for now) supports FlexCDC plugins, which allow you to send the updates to a remote data source, or to any other place of your liking.  You can find out more about FlexCDC basics in a previous blog post.

Please note that FlexCDC still needs to have source and destination instances defined in

  [Read more...]
Changes in Configuration of Global Variables between MySQL 5.6.20 and MySQL 5.7.4 “Milestone 14″
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While doing some testing (that I have pending to show you) on the still-in-development MySQL 5.7 I wanted to do some analysis on the configuration to see if the changes in performance were due to the code changes or just to the new MySQL defaults (something that is very common in the migration from 5.5 to 5.6 due to the default transaction log size and other InnoDB parameters). This is a quick post aiming to identify the global variables changed between these two versions.

You could tell me that you could just read the release notes, but my experience (and this is not an exception,

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The InnoDB mutex
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InnoDB provides a custom mutex and rw-lock implementation. I wondered how the InnoDB mutex performance compares to a pthread mutex on modern hardware and finally had time to test it. My test client is innotsim and includes code copied from InnoDB in MySQL 5.6. There is a lot of work-in-progress for InnoDB mutexes in 5.7 and I have yet to catch up to that work. 

Summary

Generally, the performance is more constant for pthread mutex and more a function of the number of threads for the InnoDB mutex. The interesting result is the point (number of threads in the test) at which the lines cross and the InnoDB mutex changes from being faster to slower than
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mysqld_multi: How to run multiple instances of MySQL
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The need to have multiple instances of MySQL (the well-known mysqld process) running in the same server concurrently in a transparent way, instead of having them executed in separate containers/virtual machines, is not very common. Yet from time to time the Percona Support team receives a request from a customer to assist in the configuration of such an environment. MySQL provides a tool to facilitate the execution of multiple instances called mysqld_multi:

“mysqld_multi is designed to manage several mysqld processes that listen for connections on different Unix socket files and TCP/IP ports. It can start or stop servers, or report their current

  [Read more...]
mysqld_multi: How to run multiple instances of MySQL
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The need to have multiple instances of MySQL (the well-known mysqld process) running in the same server concurrently in a transparent way, instead of having them executed in separate containers/virtual machines, is not very common. Yet from time to time the Percona Support team receives a request from a customer to assist in the configuration of such an environment. MySQL provides a tool to facilitate the execution of multiple instances called mysqld_multi:

“mysqld_multi is designed to manage several mysqld processes that listen for connections on different Unix socket files and TCP/IP ports. It can start or stop servers, or report their current

  [Read more...]
10 Newer Entries Showing entries 61 to 70 of 16301 10 Older Entries

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