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rails s -p $PORT -b $IPするとPG::ConnectionBadが出たとき

Ruby
Rails
PostgreSQL
cloud9

Last updated at 2017-08-15Posted at 2017-08-15

状況

PG::ConnectionBad
could not connect to server: Connection refused Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

原因

postgresqlが動いていなかった

上のように $ psql を打ったときに「psql: could not connect to server: Connection refused」と出たのでpostgresqlが動いていないことがわかる。

対処

$ sudo service postgresql start を実行する
$ rails s -p $PORT -b $IP を実行する

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