Simon Riggs wrote:
I am truly lost to understand why the *name* "synchronous replication" causes so much discussion, yet nobody has discussed what they would actually like the software to *do*
It's the color of the bikeshed ...
We can make the reply to a commit message when any of the following events have occurred 1. We sent the message to standby 2. We received the message on standby 3. We wrote the WAL to the WAL file 4. We fsync'd the WAL file 5. We CRC checked the WAL commit record 6. We applied the WAL commit record
In DRBD tradition, I suggest you implement all of them, or at least factor the code so that each of them can be a one line change. (We can probably later drop one or two options.)
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