This is the 150th tip published on this blog so decided to make it a collection of all the previous ones. Here is a tag cloud (created from wordle.net/create) from title of all the tips:

As expected GlassFish is the most prominent topic. And then there are several entries on NetBeans, JRuby/Rails, several Java EE 6 technologies like JPA, JAX-WS, JAX-RS, EJB, and JSF, and more entries on Eclipse, OSGi and some other tecnhologies too. Here is a complete collection of all the tips published so far:

• #149: How to clean IntelliJ cache, preferences, etc on Mac OS X ?
• …

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Last week Adam went to QCon San Francisco to talk about "The Road Ahead for Java". Adam covered the Java SE Strategy, presented by Oracle at JavaOne via a PR, keynotes and sessions like S319476 by Paul and Henrik. The relevant section from the PR is:

The Oracle JDK and Java Runtime Environment (JRE) will continue to be available as free downloads, with no changes to the existing licensing models.

Premium offerings such as JRockit Mission Control, JRockit Real Time, Java for …

For many people this will be old news, but I guess It thought I should put up something official. At the end of September, I left MySQL/Sun/Oracle – that wasn’t an easy decision, mostly because I loved my job. It’s difficult to stop doing something that you enjoy so thoroughly and, over the years, have been so involved in. I did more than just get involved in the docs, I helped out with advice for different departments, worked on areas like DTrace, and of course helped write the documentation and enhanced many of the tools that enabled us to build such brilliant documentation. I managed to work with some amazing people, most of all the rest of my team who worked so hard to produce the manuals and content. The impetus to leave came from an opportunity to work with another excellent team on a different database, namely CouchDB. CouchDB reminds me of my early database work working on freeform text databases, with a nice open and easy structure, …

For many people this will be old news, but I guess It thought I should put up something official.

At the end of September, I left MySQL/Sun/Oracle – that wasn’t an easy decision, mostly because I loved my job. It’s difficult to stop doing something that you enjoy so thoroughly and, over the years, have been so involved in. I did more than just get involved in the docs, I helped out with advice for different departments, worked on areas like DTrace, and of course helped write the documentation and enhanced many of the tools that enabled us to build such brilliant documentation. I managed to work with some amazing people, most of all the rest of my team who worked so hard to produce the manuals and content.

The impetus to leave came from an opportunity to work with another excellent team on a different database, namely CouchDB. CouchDB reminds me of my early database work working on freeform text databases, with a nice open and …

Another piece of good news for MySQL 5.5 – the output of SHOW ENGINE INNODB STATUS has now been increased from 64kB, to 1MB. For those running with systems that have thousands of running transactions, or large lock outputs, it should take quite a bit more to force truncation now.

We also added a new status variable to track when truncation happens as well – innodb_truncated_status_writes, so you can detect this should you have automated monitoring depending on this output.

Bug#56922 for details.

Leading up to my previous post, I had been doing some work to start the integration of PERFORMANCE_SCHEMA data with MySQL Enterprise Monitor, including some new graphs based on some of the data that I talked about in the above post..

A picture tells a thousand words:

This is only scratching the surface - more to come, watch this space!

Share and Enjoy:

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Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

While not as well known as the Google or Facebook patches the TiVo mysql patch includes some changes that make monitoring and query optimization a bit easier than mainline MySQL. The modified tarball, available at http://www.tivo.com/mysql/ contains a modified mysqld_safe, mysqldump, and improvements to the row statistics show commands that came from google.

mysqld_safe modifications

–fallback-ledir
The –ledir option tells mysqld_safe which directory contains the mysqld file that it should use. TiVo has added the –fallback-ledir option which will switch the ledir should mysqld crash. This makes it possible to run a new mysqld binary then fallback to the stock one should the new one crash. This feature has never been called to duty in production but it makes me sleep better.

–crash-script
This is a new option to mysqld_safe which will execute a script …