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Many journals are written asynchronously to the related journal writer through AsyncJournalWriter. If the journal is in AsyncJournalWriter.mQueue but there is no time to flush to the journal writer before jvm hangs, will the journal be lost?

ChanChan Mao
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Operation is finished and journal is written to local journal before returning success to client. so if jvm hangs, client will take a longer time to receive the operation succeed results because it needs to wait for the journal written.