pg_dump：[archiver（db）]與數據庫“development”的連接失敗：無法連接到服務器：Connection拒絕

Question

在嘗試將我的數據庫從我的development.sqlite3文件推送到我的Heroku應用程序時，我遇到以下錯誤消息：

pg_dump: [archiver (db)] connection to database "development" failed: could not connect to server: Connection refused
    Is the server running on host "localhost" (::1) and accepting
    TCP/IP connections on port 5432?
could not connect to server: Connection refused
    Is the server running on host "localhost" (127.0.0.1) and accepting
    TCP/IP connections on port 5432?
pg_restore: [archiver] input file is too short (read 0, expected 5)
psql: could not connect to server: Connection refused
    Is the server running on host "localhost" (::1) and accepting
    TCP/IP connections on port 5432?
could not connect to server: Connection refused
    Is the server running on host "localhost" (127.0.0.1) and accepting
    TCP/IP connections on port 5432?
 !    Heroku client internal error.
 !    Search for help at: https://help.heroku.com
 !    Or report a bug at: https://github.com/heroku/heroku/issues/new

我是Heroku的新手，無法想出這個。 希望它是一個簡單的我忽略。

Answer 1

首先，sqlite不打算用於生產。 事實上，Heroku不支持使用sqlite，因此如果您想將您的應用程序與Heroku一起使用，則需要切換到Postgres： https ： //devcenter.heroku.com/articles/getting-started-with-rails4#寫你的應用程序 。

您獲得的具體錯誤是因為您的heroku應用程序將連接到端口5432，默認情況下由Postgres使用，而sqlite不使用該端口。 但是，由於您沒有要在localhost上連接的PG服務器，因此您的應用程序失敗並顯示該錯誤。