Some of us have put together a "How To Review" list, a reference for some things to keep in mind when reviewing tickets for Cassandra, and added it to the wiki.
Link: https://wiki.apache.org/cassandra/HowToReview We figure this might help newcomers to the community / process to double-check things during review, and possibly serve as a convenient check-list for old-timers when reviewing larger patches. As always: questions, comments, or revisions are welcome! ~Josh