At Wed, 30 Sep 2020 22:38:59 -0700, Noah Misch <n...@leadboat.com> wrote in noah> Perhaps wal_level=minimal should stop its pedantic call for max_wal_senders=0. noah> As long as the relevant error messages are clear, it would be fine for noah> wal_level=minimal to ignore max_wal_senders and size resources as though noah> max_wal_senders=0. That could be one less snag for end users. (It's not noah> worth changing solely to save a line in PostgresNode, though.)
At Thu, 01 Oct 2020 09:42:52 -0400, Tom Lane <t...@sss.pgh.pa.us> wrote in tgl> On the other point, I think that we should continue to complain tgl> about max_wal_senders > 0 with wal_level = minimal. If we reduce tgl> that to a LOG message, which'd be the net effect of trying to be tgl> laxer, people wouldn't see it and would then wonder why they can't tgl> start replication. FWIW, I'm on the noah's side. One reason of that is that if we implement the in-place setting relation persistence feature for bulk-data loading, wal_level would get flipped-then-back between minimal and replica or logical. The restriction about max_wal_senders is the pain n the ass in that case.. regards. -- Kyotaro Horiguchi NTT Open Source Software Center
