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Displaying posts with tag: BinaryStor (reset)

Did you spot that [Error]?
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If only your database would just tell you that replication had failed or that the disk was full…
Ok some database servers do but MySQL doesn’t (yet). Another excuse to write a script

In my pursuit for total database visibility I have been searching for a tool that would tell me when something went wrong, that would simulate regular usage, and let me know if anything failed. After all SNMP can only probe so far and if your database is secure the last thing you want to do is open up another port on your server.

Don’t get me wrong there are tools out there that do a


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Database Change Management
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Databases are used by many different disciplines, from your DBA to your Developer, right down to the End User. They can also be viewed from many different perspectives…

DBA’s are usually interested in the server configuration, index usage etc. Developers however are often concerned with retrieval methods, datatypes and occasionally stored procedures. One thing is for sure, your database if used effectively will be changing frequently, and with so many people accessing your database do you know what the last change was? Would you know if someone added an index to a table? (would you care…

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Merry Christmas!!
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2007 is almost over and what a year this has been for Wave2!

My programming preferences have gone full circle, from beginning the year playing snakes and ladders (Python), I spent the summer drinking coffee (Java) and finally settled down surrounded by Camel’s, Lama’s and Parrots (Perl). Bizarre but never dull!

Steady progress has been made all round and as always the Open Source community has proven a valuable resource. Not a day went by where I did not discover something new or think of a new idea that could be built using Open Source Software. I only wish I had more time in the day!.

My Christmas present came early this year in the form of a MySQL 5.1 Cluster DBA Certification Study Guide. I have been putting off the final MySQL

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MySQL Snapshots on FreeBSD
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I read a lot about MySQL (http://www.mysql.com) backups using LVM Snapshots on Linux, WAFL Snapshots on NetApp and more recently ZFS Snapshots. But did you know you can do the same under FreeBSD?

FreeBSD has had snapshot capability since around 2001 allowing administrators to take a frozen image of a

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Getting ready for MySQL 5.1
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While working on MySQLDump.java this weekend I decided to look into the new features that are heading our way in MySQL 5.1. It cannot be long before we see a general release and I needed to start thinking of ways to backup items like Events. This also made a good opportunity to start afresh with my dev server and try out the latest Solaris 10 8/07 release with GlassFish v2, the releases just keep coming! (SXDE 9/07 was just released).

The Solaris 10 install was as

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MySQL Dump in Java
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I started work on a Java class that mimics the functionality of the mysqldump command today.
My goal is to create a standalone application to begin with, but design the class such that it can be plugged into any other Java application requiring MySQL backup capability.

After completing the initial prototype of the dump_table method (minus blob support), I began to wonder what the performance would be like compared to the bundled mysqldump application (written in C).

As this was a prototype with no optimisations, the results were not that bad. The following figures were obtained from running both the C-based mysqldump and the


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Showing entries 1 to 6

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