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我如何停止已启动的服务？

tag-icon • tag-icon postgresql launchd launchctl
我如何停止已启动的服务？

我有一个带有标签的启动服务homebrew.mxcl.postgresql：

$ launchctl list homebrew.mxcl.postgresql
{
    "LimitLoadToSessionType" = "Aqua";
    "StandardErrorPath" = "/usr/local/var/log/postgres.log";
    "Label" = "homebrew.mxcl.postgresql";
    "TimeOut" = 30;
    "OnDemand" = false;
    "LastExitStatus" = 0;
    "PID" = 5436;
    "Program" = "/usr/local/opt/postgresql/bin/postgres";
    "ProgramArguments" = (
        "/usr/local/opt/postgresql/bin/postgres";
        "-D";
        "/usr/local/var/postgres";
    );
};

我想停止这个服务！但是，这个stop命令显然不起作用。相反，它会用新的 PID 重新启动服务：

$ launchctl stop homebrew.mxcl.postgresql
$ launchctl list homebrew.mxcl.postgresql
{
    "LimitLoadToSessionType" = "Aqua";
    "StandardErrorPath" = "/usr/local/var/log/postgres.log";
    "Label" = "homebrew.mxcl.postgresql";
    "TimeOut" = 30;
    "OnDemand" = false;
    "LastExitStatus" = 0;
    "PID" = 5819;
    "Program" = "/usr/local/opt/postgresql/bin/postgres";
    "ProgramArguments" = (
        "/usr/local/opt/postgresql/bin/postgres";
        "-D";
        "/usr/local/var/postgres";
    );
};

我如何真正停止该服务？

答案1

如果应该启动已停止的作业，它将立即重新启动。相反，您必须卸载该服务：

launchctl unload homebrew.mxcl.postgresql

要永久禁用它，还需指定-w开关：

launchctl unload -w homebrew.mxcl.postgresql

对于 Homebrew，还有自制服务. 安装方法：

brew tap homebrew/services

然后您可以更轻松地启动和停止服务：

brew services start postgresql
brew services stop postgresql

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