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# Month: May 2013

## mycheckpoint revision 231 released

MySQL Development Monitoring mycheckpoint Open Source May 23, 2013May 23, 2013

A new release for mycheckpoint: lightweight, SQL oriented MySQL monitoring solution.

If you’re unfamiliar with mycheckpoint, well, the one minute sales pitch is: it’s a free and open source monitoring tool for MySQL, which is extremely easy to install and execute, and which includes custom queries, alerts (via emails), and out of the box HTTP server and charting.

This is mostly a maintenance release, with some long-time requested features, and of course solved bugs. Here are a few highlights:

- Supports MariaDB and MySQL 5.6 (issues with new variables, space padded variables, text-valued variables)
- Supports alerts via function invocation on monitored host (so not only checking alerts via aggregated data like ‘Seconds_behind_master’ but also by SELECT my_sanity_check_function() on monitored instance). See alerts.
- Supports single-running-instance via “–single” command line argument
- Supports strict sql_mode, including ONLY_FULL_GROUP_BY, overcoming bug #69310.
- Supports sending of pending email HTML report
- Better re-deployment process
- Better recognizing of SIGNED/UNSIGNED values
- Some other improvements in charting, etc.

mycheckpoint is released under the BSD license.

Downloads are available from the project’s page.

## opeark-kit revision 196 released

MySQL Development Open Source openark kit QueryScript May 7, 2013

This is a long due maintenance release of openark-kit. This release includes bugfixes and some enhancements, mainly to oak-online-alter-table.

oak-online-alter-table Changes / bug fixes include:

- Support for keyword-named columns
- Use of FORCE INDEX due to lack of MySQL’s ability for figure out the chunking key at all times
- –sleep-ratio option added; allows for sleep time proportional to execution time (as opposed to constant sleep time with –sleep)
- Support for chunk-retry (in case of deadlock) via –max-lock-retries)
- Fixed order of cleanup
- Fixed bug with verbose messages with non-integer chunking key
- Fixed bug with single-row tables (people, no need for this tool for single row tables :))
- Friendly verbose messages to remind you what’s being executed

oak-chunk-update changes includes:

- Verbosing query comment if exists (friendly printing of what’s being executed)

Continue reading » “opeark-kit revision 196 released”

## On compiling TokuDB from source

MySQL TokuDB May 2, 2013May 2, 2013

Sharing my experience of compiling TokuDB + MariaDB 5.5. Why? Because I must have this patch to Sphinx 2.0.4.

Note: I was using what seems to be the “old” method of compiling; quoting Leif Walsh:

> … We are looking at deprecating that method of building (MariaDB source plus binary fractal tree handlerton). It only really needed to be that complex when we were closed source.

I also tried the “new” method of compiling, which I couldn’t work out.

Here’s how it goes: TokuDB is newly released as open source. As such, it got a lot of attention, many downloads and I hope it will succeed.

However as stable as the product may be, it’s new to open source, which means anyone compiling it from source is an early adopter (at least for the compilation process).

#### Installation process

This is an unorthodox, and actually weird process. See section 6 on the Tokutek docs. In order to compile the project you must download:

- The source code tar.gz
- And the binary (?!) tar.gz
- And the binary checksum
- And the Tokutek patches
- And the patches checksum Continue reading » “On compiling TokuDB from source”