sijie commented on issue #2083: checkpoint when entry has one more directory to write URL: https://github.com/apache/bookkeeper/issues/2083#issuecomment-489294045 @jacky1193610322 Not sure if I fully understand your questions. But an entry log only belongs to one directory, when checkpoint happens, it does following: a) flush the entry log file to make sure entries are persisted to the disks. b) flush the index pages to make sure all index pages are persisted. c) advanced the last mark in journal to the check-pointed mark. If any crashes happen before c), the journal will still have all the data to recover.
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