Unit testing, Riak buckets

Jeremiah Peschka jeremiah.peschka at gmail.com
Sun Oct 13 21:34:24 EDT 2013

For CorrugatedIron's integration tests, we frequently use a GUID as part of
the bucket name and then destroy the bucket after tests finish. Since I'm
frequently moving between different Riak builds, I destroy my data
directories at the filesystem level on a regular basis.

Your idea of using cron jobs to delete yesterday's buckets doesn't sound
like a bad idea.

Yes, listing buckets is bad in production. No, this isn't production.

Jeremiah Peschka - Founder, Brent Ozar Unlimited
MCITP: SQL Server 2008, MVP
Cloudera Certified Developer for Apache Hadoop

On Sun, Oct 13, 2013 at 8:27 PM, Toby Corkindale <
toby.corkindale at strategicdata.com.au> wrote:

> Hi,
> I'd like to hear how other people are approaching the problem of cleaning
> Riak buckets up at the end of unit tests for their apps.
> The problem I have is that multiple tests may be run at once (by different
> developers or different Jenkins' jobs or even just a parallelised test
> suite) so I can't really run a blanket delete-all at the end of the test
> suite, unless I use a randomly-named bucket each time. Yet if I do that,
> I'm concerned the test suite may crash out prior to the end sometimes, and
> then never delete that randomly-named bucket.
> If secondary indexes aren't required, then the easy solution is to use a
> randomly-named Bitcask bucket which has a backend configured for a fairly
> short TTL.
> Otherwise, I have wondered about creating buckets with a certain format,
> perhaps "test-XXXXXX-YYYY-MM-DD", (x=random) and then a nightly cron script
> can run to find all buckets timestamped from the previous day or earlier,
> and remove them. I gather listing all buckets is an expensive operation
> though, although it'll only be running on a testing Riak cluster.
> So I wondered how other developers are approaching this issue?
> Cheers,
> Toby
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