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10 Newer Entries Showing entries 31 to 40 of 259 10 Older Entries

Displaying posts with tag: Python (reset)

Tips to Build a Fault-tolerant Database Application
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Applications should be written taking into account that errors will eventually happen and, in particular, database application developers usually consider this while writing their applications.

Although the concepts required to write such applications are commonly taught in database courses and to some extent are widely spread, building a reliable and fault-tolerant database application is still not an easy task and hides some pitfalls that we intend to highlight in this post with a set of suggestions or tips.

In what follows, we consider that the execution flow in a database application is characterized by two distinct phases: connection and business logic. In the connection phase, the application connects to a database, sets up the environment and passes the control to the business logic phases. In this phase, it gets inputs



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MySQL Connector/Python v1.1.1 alpha: With Pooling and Django!
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Connector/Python v1.1.1 is available for testing. It’s the second of a series of alpha releases which will bring some new features. Check out the Change History if you want to keep up with what is being added and changed.

Notable changes for v1.1.1:

Connector/Python v1.1.1 is alpha and although in good shape, it’s advised not to use it

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MySQL Connector/Python v1.0.12 released
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A few weeks ago we released MySQL (http://www.mysql.com) Connector/Python v1.0.12. Bugs were fixed, and LOAD DATA LOCAL INFILE should now work correctly. The announcement can be read on the MySQL forums.

Some useful links:

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ConFoo: The conference for web developers is looking for speakers.
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ConFoo is currently looking for web professionals with deep understanding of PHP, Java, Ruby, Python, DotNet, HTML5, Databases, Cloud Computing, Security and Mobile development to share their skills and experience at the next ConFoo. Submit your proposals between August 26th and September 22nd.

ConFoo is a conference for developers that has built a reputation as a prime destination for exploring new technologies, diving deeper into familiar topics, and experiencing the best of community and culture.

  • ConFoo 2014 will be hosted on February 26-28 in Montreal, at the Hilton Bonaventure Hotel.
  • We take good care of our speakers by covering most expenses
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Announcing MySQL Utilities release-1.3.4 GA
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The MySQL Utilities Team is pleased to announce the latest GA release of
MySQL Utilities. This release marks a milestone of concentrated effort to
expand the use of utilities in more diverse installations through improved
robustness, error handling, and quality.

Many Improvements


There are number such enhancements in this release. In this post we will
highlight a few of the more significant improvements.
  • (new utility) MySQL .frm Reader (mysqlfrm) - read .frm files and generate CREATE statements with or without a server connection.
  • (revised) improved documentation including a section on example administrative tasks - see http://dev.mysql.com/doc/workbench/en/mysql-utilities.html
  • MySQL Utilities is packaged for








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Public DNS resolve for VM instances hosted at OpenStack nova compute grizzly edition
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Issue – the OpenStack instances hostnames are not resolved at the moment by their floating IPs.

Fast solution – use PowerDNS
Short story:
1. Boot an instance , assign it a floating IP, open tcp ports 22 8001 and udp port 53.
2. Install PowerDNS, the particular yum package is named pdns.
3. install the mysql backend for PowerDNS, its available as yum package as well.
4. Install MariaDB , set the proper configuration, the initialize it at the default location.
5. Set the pdns user, create the pdns database and create the tables needed.
6. Configure the pdns service to use the gmysql backend.
7. Create and user at the OpenStack MySQL able to connect from the floating IP subnet.
8. Grant that user select permissions on all nova.* tables.
9. At the PowerDNS









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Poll: What programming languages and platforms do you use?
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What programming languages and platforms do you use for large-scale projects in your organization?

If something is missing from the list please leave a comment and share your story. Thanks!

Note: There is a poll embedded within this post, please visit the site to participate in this post's poll.

The post Poll: What programming languages and platforms do you use? appeared first on MySQL Performance Blog.

MySQL Connector/Python v1.1.0 alpha
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Finally, Connector/Python v1.1.0 is out. It’s the first of a series of alpha releases which will bring some new features. Check out the Change History if you want to keep up with what is being added and changed.

Notable changes for v1.1.0:

  • Connector/Python v1.0 was known to work with Python v2.4 and 2.5. We now break compatibility with these older Python versions.
  • MySQL Prepared Statements are supported using cursor.MySQLCursorPrepared.
  • You can find out whether there is an ongoing transaction by checking
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MySQL Connector Python 1.0.11 has been released!
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Dear MySQL users,

MySQL Connector/Python v1.0.11 is a new version of the 1.0 production release of the pure Python database driver for MySQL.

MySQL Connector/Python version 1.0 is compatible with MySQL Server versions 5.5 and greater, but should work with earlier versions (greater than v4.1). Python v2.6 and greater as well as Python v3.1 and greater are supported. Python v2.4 and v2.5 are known to work, but are not officially supported.

MySQL Connector/Python v1.0.11 is available for download from
http://dev.mysql.com/downloads/connector/python/#downloads

A brief summary of changes in MySQL Connector/Python v1.0 is listed below. Please check the change log file inside the distribution for a more complete list of changes or online at:








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Scalability Happiness – A Quiet Query Log
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Join 7500 others and follow Sean Hull on twitter @hullsean.

There’s a lot of talk on the web about scalability. Making web applications scale is not easy. The modern web architecture has so many moving parts. How can we grapple with the underlying problem?

Also: Why Are MySQL DBAs So Hard to Find?

The LAMP stack scales well

The truth that is half right. True there are a lot of moving parts, and a lot to setup. The internet stack made up of Linux, Apache, MySQL & PHP. LAMP as it’s called, was built to be resilient, dynamic, and scalable.

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10 Newer Entries Showing entries 31 to 40 of 259 10 Older Entries

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