Monthly Archives: July 2009

Table discovery for Drizzle (take 2, now merged!)

Posted on by
1

Table discovery looks a bit different from the previous time I blogged about it. Everything is now just hanging off the StorageEngine. If you want to not have dfe files on disk and just use your own data dictionary, you need to implement two things:

  • A method to get table metadata
  • A iterator over table names in a database in your engine

I’ve done this for the ARCHIVE storage engine (and that’s in Drizzle trunk now), and have been reading up on the Embedded InnoDB docs to see their API to the InnoDB data dictionary and am rather excited about getting it going at some point in the future (feel free to beat me to it and submit a patch though!)

MyISAM as temporary only engine

Posted on by
1

Finally merged into main. I added the ability for engines to be temporary only – that is you can only CREATE TEMPORARY table or be created and used during query execution. This allows us to refactor/remove some other code and go towards a “locking is inside the engine” mantra as anything but row level or true MVCC is certainly the exception these days.

Debian unstable on a Sun Fire T1000

Posted on by
2

So i got the T1000 working again (finally, after much screwing about trying to get the part). I then hit the ever annoying “no console” problem, where the console didn’t work – kind of problematic.

After a firmware upgrade, and passing “console=/dev/ttyS0” to the kernel, things work.

So the T1000 firmware 6.3 doesn’t work with modern debian kernels. Thing swork with 6.7 though.