Hi
Thanks for engaging in this discussion!
Cameron, regarding the benchmark, I need to spend some time exploring the
stress tool options, but I aim to create a stress test that goes on for a
period of at least 48 hours, and then run it for all strategies (with a
24-hour burst for BHCS). I want th
Hi Pedro,
I did a quick read through of your strategy, and have a few personal
thoughts:
First, writing a compaction strategy is a lot of work, and it's great to
see new contributors take on ambitious projects. There are even a handful
of ideas in here that may be useful to other strategies.
The
The main issue I see with this is "Read all the SSTables and detect which
partition keys are present in more than the compaction minimum threshold
value" . This is quite expensive and will be using quite a lot of I/O to
calculate. What makes writing a compaction strategy so difficult is
calculating
Hi
I've addressed the issues with Git. I believe this is what Stefan asking
for: https://github.com/sedulam/cassandra/tree/12201
I've also added more tests for BHCS, including more for wide rows following
Jeff's suggestion.
Thanks for the directions so far! If there's something else you would lik
Hi all
Although a couple of people engaged with me directly to talk about BHCS, I
would also like to get the community opinion on this, so I thought I could
get the discussion started by saying what the advantages would be and in
which type of tables BHCS would do a good job. Please keep in mind t
GitHub has some good guides on how to use git and make a pull request for a
project.
https://guides.github.com/introduction/flow/
https://guides.github.com/activities/forking/
> On Jun 10, 2017, at 3:17 PM, Pedro Gordo wrote:
>
> Hi all
>
> I've added to JIRA, a document explaining how BHCS w
Hi all
I've added to JIRA, a document explaining how BHCS works with code
snippets, and the motivation behind it. Because I'm not sure we can send
attachments to the mailing list, please get the document from JIRA:
https://issues.apache.org/jira/browse/CASSANDRA-12201
I'll check how to address th
Hi Stefan
Thanks for pointing these out. So far, I've only worked collaboratively
with SVN, so I wasn't sure how best to address this part of the development
with Git. I'll create a document explaining what I've done, hopefully until
the end of this week, so that people at least can discuss the st
Hello Pedro
Thanks for being interested in contributing to Apache Cassandra.
Creating a new compaction strategy is not an easy task and there are
several things you can do to make it more obvious for other developers
to understand what you're up to.
First of all, if using github, changes to the c
Hi all
As part of my MSc project, I've done a new compaction strategy for
Cassandra, called Burst Hour Compaction Strategy. You can find the JIRA
ticket here: https://issues.apache.org/jira/browse/CASSANDRA-12201
In a nutshell, the background compaction for this strategy is only
triggered during
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