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10 Newer Entries Showing entries 121 to 130 of 33116 10 Older Entries
The InnoDB Mutex, part 2
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I updated the innotsim client to include a new custom mutex from InnoDB in MySQL 5.7. This is called TTASFutexMutex in the source. I also fixed a bug in innotsim - the benchmark timer was started too soon so these results are more accurate than the original post.

The original post has much more detail on the tests. In the graphs below, TTASFutexMutex has the label inno futex and the old-style custom mutex that uses a sync array has the label inno syncarray. My updated conclusions are:
  • TTASFutexMutex is worse than pthread default when the lock



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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 excitement surrounding

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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

  [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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Baron Schwartz to Speak on the Power of Regressions
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Baron Schwartz, our CEO and founder, is speaking at the Performance and Capacity Conference by CMG on November 6th. CMG, the Computer Measurement Group is a not-for-profit organization that focuses on the efficiency and scalability of IT service delivery through measurement, quantitative analysis and forecasting. It has been a reputable, worldwide resource for best practices in the IT profession since 1974.

Baron will be contributing to these efforts when he presents on “Using Regressions to Estimate Query Resource Consumption.” VividCortex uses regression to generate metrics for many things that cannot be measured directly, allowing us to provide robust sets of data while reducing the measurement intrusion effect on systems. In particular, our customers are

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Baron Schwartz to Speak on the Power of Regressions
+0 Vote Up -0Vote Down

Baron Schwartz, our CEO and founder, is speaking at the Performance and Capacity Conference by CMG on November 6th. CMG, the Computer Measurement Group is a not-for-profit organization that focuses on the efficiency and scalability of IT service delivery through measurement, quantitative analysis and forecasting. It has been a reputable, worldwide resource for best practices in the IT profession since 1974.

Baron will be contributing to these efforts when he presents on “Using Regressions to Estimate Query Resource Consumption.” VividCortex uses regression to generate metrics for many things that cannot be measured directly, allowing us to provide robust sets of data while reducing the measurement intrusion effect on systems. In particular, our customers are

  [Read more...]
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

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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

  [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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10 Newer Entries Showing entries 121 to 130 of 33116 10 Older Entries

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