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Previous 30 Newer Entries Showing entries 91 to 120 of 366 Next 30 Older Entries

Displaying posts with tag: Technology (reset)

Tracing changes in MySQL Connector/Net 6.2 – Part 2
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In our last installment we found our hero investigating the tracing changes found in Connector/Net 6.2.  This time we’ll take a closer look at the format of the trace data and how developers can use that information to write new and interesting trace listeners.

Understanding the plumbing

The first thing we need to understand is a little about how the trace messages are routed.  The main method we are interested in is TraceSource.TraceEvent.  Here is the signature.

public void TraceEvent(
    TraceEventType eventType,
    int id,
    string format,
    params Object[] args
)

All the other TraceSource methods like TraceInformation

  [Read more...]
Tracing changes in MySQL Connector/Net 6.2 – Part 1
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For years, Connector/Net has been a key part of any MySQL & .NET developer’s toolbox.  Tracing is also a key part of a developer’s life and Connector/Net has always output trace messages. 

This first post is a review of .NET tracing systems and how we changed our trace output.  The second post will cover how developers can use the new tracing format to develop new applications.

Tracing in .NET 1.x

.NET shipped with a very simple tracing system.  You have a static class named Trace that has static methods such as Write and WriteLine.  An application can use code like the following to output a message to the trace log. 

Now that we have output our message, how do we direct it somewhere?  You do that with listeners.  There are a few standard listeners included in the framework

  [Read more...]
Tracing changes in MySQL Connector/Net 6.2 – Part 2
Employee +0 Vote Up -0Vote Down

In our last installment we found our hero investigating the tracing changes found in Connector/Net 6.2.  This time we’ll take a closer look at the format of the trace data and how developers can use that information to write new and interesting trace listeners.

Understanding the plumbing

The first thing we need to understand is a little about how the trace messages are routed.  The main method we are interested in is TraceSource.TraceEvent.  Here is the signature.

public void TraceEvent(
    TraceEventType eventType,
    int id,
    string format,
    params Object[] args)

All the other

  [Read more...]
Tracing changes in MySQL Connector/Net 6.2 – Part 1
Employee +0 Vote Up -0Vote Down

For years, Connector/Net has been a key part of any MySQL & .NET developer’s toolbox.  Tracing is also a key part of a developer’s life and Connector/Net has always output trace messages.

This first post is a review of .NET tracing systems and how we changed our trace output.  The second post will cover how developers can use the new tracing format to develop new applications.

Tracing in .NET 1.x

.NET shipped with a very simple tracing system.  You have a static class named Trace that has static methods such as Write and WriteLine.  An application can use code like the following to output a message to the trace log.

Now that we have output our message, how do we direct it somewhere?  You do that with listeners.  There are a few standard listeners

  [Read more...]
VMware,”Hey what ya’ building over there?”
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Today I caught a tweet from Kara Swisher referencing some exclusive news she posted on Boomtown about VMware’s upcoming deal to buy Zimbra from Yahoo! This is would be VMware’s second acquisition of an open source ISV in under a

  [Read more...]
MySQL Connector/Net 6.2.2 GA has been released
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MySQL Connector/Net 6.2.2, a new version of the all-managed .NET driver for MySQL has been released.This is our latest GA release and is suitable for use in all scenarios against servers ranging from version 4.1 to 5.4!

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.2.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time - if you can't find this version on some mirror, please try again later or choose another download site.)

The new features or changes in this release are:

  • Connection pool cleanup timer.  We now utilize a timer that cleans idle connections that are no longer connected every 3 minutes
  • We are now using stream and TCP-based timeouts to

  [Read more...]
MySQL Connector/Net 6.2.2 GA has been released
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MySQL Connector/Net 6.2.2, a new version of the all-managed .NET driver for MySQL has been released.This is our latest GA release and is suitable for use in all scenarios against servers ranging from version 4.1 to 5.4!

It is now available in source and binary here and mirror sites (note that not all mirror sites may be up to date at this point of time – if you can’t find this version on some mirror, please try again later or choose another download site.)

The new features or changes in this release are:

  • Connection pool cleanup timer.  We now utilize a timer that cleans idle connections that are no longer connected every 3 minutes
  • We are now using stream and TCP-based timeouts to handle command
  [Read more...]
How Open Source boosts the performance of MySQL & InnoDB
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On the 24th of November I attended a talk given by one of of Sun's benchmark specialists , Dimitri Kravtchuk, at the Sun Solution Center of Paris.

The talk was simply called MySQL performance, and I was expecting, as many I suppose (the auditorium was packed !) tips and tricks on how to optimize a MySQL database. However I was quite positively surprised since the 3 hours session wasn't just a long list of tricks and “how to's” but was actually a journey through one and a half year of improvement of the InnoDB engine.

InnoDB could easily scale horizontally but not vertically. Horizontal scaling is the fact to put many small servers with each running a MySQL server (typically in a Master-Slave mode) where vertical scaling would be to put a unique MySQL server on a bigger server, expecting to get better performances. The latter is more and more needed given

  [Read more...]
How Open Source boosts the performance of MySQL & InnoDB
Employee +0 Vote Up -0Vote Down

On the 24th of November I attended a talk given by one of of Sun's benchmark specialists , Dimitri Kravtchuk, at the Sun Solution Center of Paris.

The talk was simply called MySQL performance, and I was expecting, as many I suppose (the auditorium was packed !) tips and tricks on how to optimize a MySQL database. However I was quite positively surprised since the 3 hours session wasn't just a long list of tricks and “how to's” but was actually a journey through one and a half year of improvement of the InnoDB engine.

InnoDB could easily scale horizontally but not vertically. Horizontal scaling is the fact to put many small servers with each running a MySQL server (typically in a Master-Slave mode) where vertical scaling would be to put a unique MySQL server on a bigger server, expecting to get better performances. The latter is more and more needed given

  [Read more...]
Webinar on migrating SQL Server to MySQL
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We have an exciting webinar coming up tomorrow (12/15) on migrating from SQL Server to MySQL.  LiveTime Software is a leader in ITIL service management and help desk products.  They have started offering a free migration service and this webinar will go over everything from toolsets used to character sets. 

You can read more about it and register for this webinar here (http://mysql.com/news-and-events/web-seminars/display-466.html).  So I know you have an hour you can spare and when it comes time to renew that SQL Server license you’ll be glad you did.

Webinar on migrating SQL Server to MySQL
Employee +0 Vote Up -0Vote Down

We have an exciting webinar coming up tomorrow (12/15) on migrating from SQL Server to MySQL.  LiveTime Software is a leader in ITIL service management and help desk products.  They have started offering a free migration service and this webinar will go over everything from toolsets used to character sets. 

You can read more about it and register for this webinar here (http://mysql.com/news-and-events/web-seminars/display-466.html).  So I know you have an hour you can spare and when it comes time to renew that SQL Server license you’ll be glad you did.



  [Read more...]
Whatever Happened to "Do No Evil?"
+1 Vote Up -3Vote Down

 

A buddy of mine, Doug Marks, recently opened my eyes to some sites that are putting out misleading product reviews fueled by Google Ad Words.  I wrote about this on my InfoWorld blog with a story entitled "FTC and Google need to crack down on scam review

  [Read more...]
Digg Moved from MySQL to Cassandra?
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At today's Web 2.0 Expo keynote with Kevin Rose and Jay Adelson they mentioned they'd done a lot of architecture work on Digg including moving things from MySQL to Cassandra.

I guess something like this was on the table in 2006, mentioned in this O'Reilly article, but the comments clear it up as more of a "we've thought about it and are sticking with MySQL."

This whole idea of NoSQL, and that developers would rank performance over normalization and ability to use joins is interesting. At today's NoSQL talk there was a good

  [Read more...]
MySQL Connector/Net 6.1.3 has been released
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MySQL Connector/Net 6.1.3, a new version of the all-managed .NET driver for MySQL has been released. This is our latest GA release and is suitable for use in all scenarios against servers ranging from version 4.1 to 5.4!

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.1.html] and mirror sites (note that not all mirror sites may be up to date at this point of time - if you can't find this version on some mirror, please try again later or choose another download site.)

This release builds on the cool new features introduced with 6.1.2 and adds the following changes/bugfixes.

  • fixed session state provider table definition to allow more than 64K per-session data (bug#47339)
  • fixed compilation problem in
  [Read more...]
MySQL Connector/Net 6.2.1 beta has been released
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MySQL Connector/Net 6.2.1, a new version of the all-managed .NET driver
for MySQL has been released. This is a beta release and is intended to
introduce you to the new features and enhancements we are planning. This
release should not be used in a production environment.

It is now available in source and binary form from
[http://dev.mysql.com/downloads/connector/net/6.2.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time
- if you can't find this version on some mirror, please try again later
or choose another download site.)

The new features or changes in this release are:

  • fixed SessionProvider to be compatible with 4.x MySQL, replaced TIMESTAMPDIFF with







  [Read more...]
MySQL Connector/Net 6.1.3 has been released
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MySQL Connector/Net 6.1.3, a new version of the all-managed .NET driver for MySQL has been released. This is our latest GA release and is suitable for use in all scenarios against servers ranging from version 4.1 to 5.4!

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.1.html] and mirror sites (note that not all mirror sites may be up to date at this point of time – if you can’t find this version on some mirror, please try again later or choose another download site.)

This release builds on the cool new features introduced with 6.1.2 and adds the following changes/bugfixes.

  • fixed session state provider table definition to allow more than 64K per-session data (bug#47339)
  [Read more...]
MySQL Connector/Net 6.2.1 beta has been released
Employee +0 Vote Up -0Vote Down

MySQL Connector/Net 6.2.1, a new version of the all-managed .NET driver
for MySQL has been released. This is a beta release and is intended to
introduce you to the new features and enhancements we are planning. This
release should not be used in a production environment.

It is now available in source and binary form from
[http://dev.mysql.com/downloads/connector/net/6.2.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time
- if you can’t find this version on some mirror, please try again later
or choose another download site.)

The new features or changes in this release are:

  • fixed SessionProvider to be compatible with 4.x







  [Read more...]
MySQL Connector/Net 6.0.5 has been released
Employee +0 Vote Up -0Vote Down

MySQL Connector/Net 6.0.5, a new version of the all-managed .NET driver
for MySQL has been released. This is a maintenance release and is approved for use
in all situations.

It is now available in source and binary form from
[http://dev.mysql.com/downloads/connector/net/6.0.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time
- if you can't find this version on some mirror, please try again later
or choose another download site.)

There are lots of bug fixes in this release so please review the change log.

Thank you!

MySQL Connector/Net 6.0.5 has been released
Employee +0 Vote Up -0Vote Down

MySQL Connector/Net 6.0.5, a new version of the all-managed .NET driver
for MySQL has been released. This is a maintenance release and is approved for use
in all situations.

It is now available in source and binary form from
[http://dev.mysql.com/downloads/connector/net/6.0.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time
- if you can’t find this version on some mirror, please try again later
or choose another download site.)

There are lots of bug fixes in this release so please review the change log.

Thank you!







  [Read more...]
MySql Connector/Net 6.2.0 Alpha has been released
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MySQL Connector/Net 6.2.0, a new version of the all-managed .NET driver for MySQL has been released. This is an alpha release and is intended to introduce you to the new features and enhancements we are planning. This release should not be used in a production environment.

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.2.html] and mirror sites (note that not all mirror sites may be up to date at this point of time - if you can't find this version on some mirror, please try again later or choose another download site.)

The new features or changes in this release are

  • Connection pool cleanup timer. We now utilize a timer that cleans idle connections that are no longer connected every 3 minutes
  [Read more...]
MySql Connector/Net 6.2.0 Alpha has been released
Employee +0 Vote Up -0Vote Down

MySQL Connector/Net 6.2.0, a new version of the all-managed .NET driver for MySQL has been released. This is an alpha release and is intended to introduce you to the new features and enhancements we are planning. This release should not be used in a production environment.

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.2.html] and mirror sites (note that not all mirror sites may be up to date at this point of time – if you can’t find this version on some mirror, please try again later or choose another download site.)

The new features or changes in this release are

  • Connection pool cleanup timer. We now utilize a timer that cleans idle connections that are no longer connected every 3 minutes
  • We
  [Read more...]
AWS Management Console is nice
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If you want to play with Amazon cloud computing stuff, I think using AWS Management Console web interface is the best, easiest, and most intuitive approach, based on my experience so far.

My usage with Amazon Web Services has been only with EC2 up to this point. Prior to AWS Management Console, I had to set up Java, EC2 API tools, various path and environmental variables, certificates, keys, etc., etc.. It is a fairly convoluted process.

AWS Management Console is much easier, except for downloading PuTTY and PuTTYgen on Windows and tsclient on Linux, and a private key pair, everything else is handled inside the browser. Here are a few things I learned:

  • Once you are in, create a Key Pair. The web interface will prompt you to save it. Do so, because you will need it to start
  [Read more...]
YouTube – Improving Performance by Running MySQL Multiple Times
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Feels like a long time ago, but my talk at the MySQL User’s Conference back in April 09 on running MySQL Multiple Times to get better performance is now available online at YouTube. The original PDF of the presentation is available here.View it here: YouTube – Improving Performance by Running MySQL Multiple Times


YouTube – Improving Performance by Running MySQL Multiple Times
+0 Vote Up -0Vote Down

Feels like a long time ago, but my talk at the MySQL User’s Conference back in April 09 on running MySQL Multiple Times to get better performance is now available online at YouTube. The original PDF of the presentation is available here.

View it here: YouTube – Improving Performance by Running MySQL Multiple Times

MySQL Connector/Net 6.1.2 GA has been released
Employee +1 Vote Up -0Vote Down

MySQL Connector/Net 6.1.2, a new version of the all-managed .NET driver for MySQL has been released. This is our latest GA release and is suitable for use in all scenarios against servers ranging from version 4.1 to 5.4!

It is now available in source and binary form from [http://dev.mysql.com/downloads/connector/net/6.1.html] and mirror sites (note that not all mirror sites may be up to date at this point of time - if you can't find this version on some mirror, please try again later or choose another download site.)

This release introduces a couple of exciting new features.

Website Configuration Dialog -- This is a new wizard that is activated by clicking a button on the toolbar at the top of the solution explorer. It is meant to work in conjunction with the ASP.Net

  [Read more...]
MySQL Webinars in the upcoming weeks...
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After the slow down due to vacation and warm weather we are ready for a series of educative Italian webinars on MySQL. Here is the list:

Semptember 10@10am CET - "Top 5 Tuning tips for MySQL (http://www.mysql.it/news-and-events/web-seminars/display-390.html)"
Are your applications slow during peak times? Is the database running slowly? Do you find difficult to pinpoint performance problems? Then this webinar is for you!I will cover the top 5 tips to speed up your MySQL databases from a developer as well as DBA point of view.

October 8@10am CET - "Introduction to MySQL for Windows (http://www.mysql.it/news-and-events/web-seminars/display-421.html)"
Do you know that MySQL is used extensively on Windows? Would you like to learn the tools that we provide?
Join this webinar! We will discuss the






  [Read more...]
MySql Connector/Net 6.1.1 beta has been released
Employee +0 Vote Up -0Vote Down

MySQL Connector/Net 6.1.1, a new version of the all-managed .NET driver
for MySQL has been released. This is a beta release and is intended to
introduce you to the new features and enhancements we are planning. This
release should not be used in a production environment.

It is now available in source and binary form from
[http://dev.mysql.com/downloads/connector/net/6.1.html] and mirror sites
(note that not all mirror sites may be up to date at this point of time
- if you can't find this version on some mirror, please try again later
or choose another download site.)

This release introduces a couple of exciting new features.

  • Website Configuration Dialog -- This is a new wizard that is activated







  [Read more...]
Advancing MySQL Open Development One Important Step Forward
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Giuseppe Maxia writes about the availability of the active development/test ("pushbuild") MySQL binaries for users—on multiple platforms.

This is a wonderful step forward in bringing greater openness to current MySQL development and in bringing greater value to the MySQL user community!  

Advancing MySQL Open Development One Important Step Forward
Employee +0 Vote Up -0Vote Down

Giuseppe Maxia writes about the availability of the active development/test ("pushbuild") MySQL binaries for users—on multiple platforms.

This is a wonderful step forward in bringing greater openness to current MySQL development and in bringing greater value to the MySQL user community!  

Advancing MySQL Open Development One Important Step Forward
Employee +0 Vote Up -0Vote Down

Giuseppe Maxia writes about the availability of the active development/test ("pushbuild") MySQL binaries for users—on multiple platforms.

This is a wonderful step forward in bringing greater openness to current MySQL development and in bringing greater value to the MySQL user community!  

Previous 30 Newer Entries Showing entries 91 to 120 of 366 Next 30 Older Entries

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