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At any given time, there is any number of open, unassigned issues on REEF. Note that that list doesn't only contain coding tasks, but also documentation, graphics work, the website and so on. We use JIRA to manage all open todos for the project, software or otherwise. However, some of the items on that list might since have become obsolete or such. Hence, it is always a good idea to get in touch with the rest of the community on the mailing list before getting started.
Code contribution process
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An important part of the process comes before you start the contribution process. Most issues should first be brought up in the dev@reef.incubator.apache.org mailing list. If you haven't done so yet, subscribe to the list. After discussion, you or one of the other developers will create an Issue on ASF JIRA. Again, create an account if you don't have one. Write a succinct description of the Issue, making sure to incorporate any discussion from the mailing list.
Assign the JIRA you've chosen to yourself. This way you're letting the rest of developers know that you're working on it, so that nobody else will start working on it in parallel.
And once you are ready to make changes, have a look at the coding guidelines to make sure your code agrees with the rest of REEF.
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