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Showing entries 1 to 6

Displaying posts with tag: dbqp (reset)

dbqp being renamed
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One of the best things that can happen to a piece of software is for people to actually use it.

I’ve been fortunate enough to have received feedback on the tool from several members of both the Percona and Drizzle teams.  The most common and strongly emphasized comments were in regards to what a terrible, terrible name dbqp really is in terms of saying, seeing, and typing it ; )

As that isn’t something that can be disputed (it’s really annoying to use in conversations *and* to type several dozen …

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dbqp and Xtrabackup testing
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So I’m back from the Percona dev team’s recent meeting.  While there, we spent a fair bit of time discussing Xtrabackup development.  One of our challenges is that as we add richer features to the tool, we need equivalent testing capabilities.  However, it seems a constant in the MySQL world that available QA tools often leave something to be desired.  The randgen is a literal wonder-tool for database testing, but it is also occasionally frustrating / doesn’t scratch every testing …

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Drizzle / dbqp updates
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Just wanted to blog about some of the latest updates to dbqp.  We just merged some interesting changes into Drizzle (just in time for the impending Fremont beta).  In additional to general code cleanup / reorganization, we have the following goodies:

Randgen in the Drizzle tree

One of the biggest things is that the random query generator (aka randgen) is now part of the Drizzle tree.  While I did …

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Drizzle testing – now with more server stressing goodness!
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One of the long term testing goals for Drizzle is to move all of our test logic directly in-tree.  Currently, we use a system called drizzle-automation to execute a variety of tests for our staging branch.  This is the final set of tests patches must pass before being allowed to merge into Drizzle trunk and includes things like sysbench, dbt2, the randgen, etc.  With the development of dbqp, we can now move this testing logic directly into the tree (and even move some of the testing tools there as well).  Of course, I’ve rambled on about this before, but I personally think it is cool and useful ; )  However enough of the sales pitch, on to the new modes!

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New dbqp feature – using pre-created datadirs for tests
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Why would one want to do this, you may ask?  Well, for starters, it makes a great ‘canary-in-the-coal-mine‘ in regards to backwards compatibility!

For Drizzle, we’ve created some tables (via the randgen’s data generator if you are curious), saved a copy of the datadir, and then created a test case that uses said datadir for the test server.  The test executes some simple SQL queries to make sure we can …

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More on kewpie (the query probulator)
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My presentation from the MySQL UC didn’t give a lot of detail on the actual tool I have hacked up, nor did it go into how to play with it / try it out.  I figured I should rectify that (at least one person seemed interested in trying it out <g>)

To begin with, you should have the random query generator installed (see the docs for handling that).  Besides being *the* cutting edge, production-ready testing tool in the open-source dbms world, it comes with a handy …

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Showing entries 1 to 6

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