On Tue, Dec 10, 2019 at 3:06 AM jiankang liu <liujk1...@gmail.com> wrote:
> Start Walreceiver completely before shut down it on standby server. > > The walreceiver will be shut down, when read an invalid record in the > WAL streaming from master.And then, we retry from archive/pg_wal again. > > After that, we start walreceiver in RequestXLogStreaming(), and read > record from the WAL streaming. But before walreceiver starts, we read > data from file which be streamed over and present in pg_wal by last > time, because of walrcv->receivedUpto > RecPtr and the wal is actually > flush on disk. Now, we read the invalid record again, what the next to > do? Shut down the walreceiver and do it again. > I am missing something here, if walrcv->receivedUpto > RecPtr, why are we getting / reading invalid record?
