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Comment: expand on TODO best practices



  • TODO Comments we typically do not include the name in the TODO comment. Where possible it's best to fix the TODO immediately (if it is a small task) or create a JIRA to track a more substantial improvement.


The .clang-format file checked into the Impala repository should be used to format whitespace (see Contributing to Impala for more info). The .clang-format file is the source of truth for whitespace formatting, except when its output significantly diverges from practices in the existing codebase or from common sense. In those cases .clang-format should be updated. We aim to gradually adapt the codebase to the output of clang-format Therefore we only recommend using it on lines that have non-whitespace changes. This can be accomplished with the git-clang-format tool.