>> If node 1 hangs and once it is recognized as "down" by other nodes, it will >> not be used without manual intervention. Thus the disaster described above >> will not happen in pgpool. > > Ok, so I suppose **all** connections, scripts, softwares, backups, maintenances > and admins must go through Pgpool to be sure to hit the correct primary. > > This might be acceptable in some situation, but I wouldn't call that an > anti-split-brain solution. It's some kind of «software hiding the rogue node > behind a curtain and pretend it doesn't exist anymore» You can call Pgpool-II whatever you like. Important thing for me (and probably for users) is, if it can solve user's problem or not. Best reagards, -- Tatsuo Ishii SRA OSS LLC English: http://www.sraoss.co.jp/index_en/ Japanese:http://www.sraoss.co.jp