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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.
-DFOO=1 and -DFOO=0 should be paired, otherwise -DFOO=1 are misleading the programmer to using the invalid usage: #if FOO But the valid usage are: #if defined(FOO) So we prefer -DFOO and using '#if defined(FOO)'
Signed-off-by: Yonggang Luo luoyonggang@gmail.com