Hi guys,
I wonder how does store objects. Consider the writing obj process,  IMO,
osd first get obj data from client, then the primary osd get the data,
store the data in journal(with sync) , after that the primary osd spray the
obj to other replica osd simultaneously, and each replica osd will write
the journal with sync and then reply to the primary osd. After recieving
all the replies from replica osd,  primary osd will report the write op is
finished. Is there anything wrong?
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