jacky1193610322 commented on issue #2083: checkpoint when entry has one more 
directory to write
URL: https://github.com/apache/bookkeeper/issues/2083#issuecomment-495127677
 
 
   @sijie
   thanks for your reply. when the ledger storage is ldb, each directory has 
one SingleDirectoryDbLedgerStorage class, when the ldb add an entry, it will 
choose the SingleDirectoryDbLedgerStorage base on ledgerId hash, and the msgs 
of a journal file will be put in different SingleDirectoryDbLedgerStorage, when 
one SingleDirectoryDbLedgerStorage is full it will flush the memtable and move 
the last mark, but now 
   other SingleDirectoryDbLedgerStorage maybe not full and not flush the 
memtable, but lastmark has been move.

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