I have 100 votes for 43 questions (37 upvoted) which are tagged with innodb.
The last upvote I received on an innodb-tagged question was 2011-11-11 20:34:27Z.
My last badge was awarded Oct 20, 2011.
How long should it take to receive a bronze badge of any type once you reach 100 upvotes?
There's one requirement missing for you to get the badge; see https://dba.stackexchange.com/badges?tab=tags (emphasis mine):
If enough votes are earned in a tag with 100+ total questions, the badge will be automatically created and awarded.
The innodb tag only has 43 questions at the moment.
