pm2.conf.json

{
    "apps": {
        "name": "weibo",
        "script": "bin/www",
        "watch": true,
        "ignore_watch": [
            "node_modules",
            "logs",
            "uploadFiles"

        ],
        "instances": 2,
        "error_file": "./logs/err.log",
        "out_file": "./logs/out.log",
        "log_date_format": "YYYY-MM-DD HH:mm:ss"
    }
}