問題：
啟動shiny-server時失敗，如下：
[[email protected] ~]# status shiny-server
shiny-server stop/waiting
[[email protected] ~]# start shiny-server 
start: Job failed to start


分析：
檢視shiny-server日誌
[[email protected] ~]# tail -100f  /var/log/shiny-server.log 
[2016-09-14 22:02:59.777] [INFO] shiny-server - Shutting down worker processes
[2016-09-14 22:03:03.763] [INFO] shiny-server - Shiny Server v1.4.4.807 (Node.js v0.10.46)
[2016-09-14 22:03:03.764] [INFO] shiny-server - Using pidfile /var/run/shiny-server.pid
[2016-09-14 22:03:03.765] [INFO] shiny-server - Using config file "/etc/shiny-server/shiny-server.conf"
[2016-09-14 22:03:03.804] [ERROR] shiny-server - Error loading config: Unknown directive "auth_passwd_file" (/etc/shiny-server/shiny-server.conf:6:1)


發現提示是配置檔案的auth_passwd_file沒有認到，才想來原來我裝的shiny-server是企業pro版本，因為試用期45天到期了，我就解除安裝了這個商業版本，重新裝的一個open免費版本。
由於解除安裝後沒刪除舊的配置檔案，導致免費版本的不能識別商業版本配置檔案裡的引數，所以才報上面的錯誤


下面是商業版本和免費版本配置檔案內容的區別
shiny-server pro版本配置內容 ：
[[email protected] shiny-server]# vi /etc/shiny-server/shiny-server.conf    


# Instruct Shiny Server to run applications as the user "shiny"
run_as shiny;


# Specify the authentication method to be used.
# Initially, a flat-file database stored at the path below.
auth_passwd_file /etc/shiny-server/passwd;

# Define a server that listens on port 3838
server {
  listen 3838;

  # Define a location at the base URL
  location / {

    # Only up tp 20 connections per Shiny process and at most 3 Shiny processes
    # per application. Proactively spawn a new process when our processes reach
    # 90% capacity.
    utilization_scheduler 20 .9 3;
    # Host the directory of Shiny Apps stored in this directory
    site_dir /srv/shiny-server;

    # Log all Shiny output to files in this directory
    log_dir /var/log/shiny-server;


    # When a user visits the base URL rather than a particular application,
    # an index of the applications available in this directory will be shown.
    directory_index on;
  }
}

# Provide the admin interface on port 4151
admin 4151 {

  # Restrict the admin interface to the usernames listed here. Currently
  # just one user named "admin"
  required_user admin;
}

shiny-server open source 版本配置檔案內容：
[

[email protected] shiny-server]# vi /etc/shiny-server/shiny-server.conf

# Instruct Shiny Server to run applications as the user "shiny"
run_as shiny;

# Define a server that listens on port 3838
server {
  listen 3838;

  # Define a location at the base URL
  location / {

    # Host the directory of Shiny Apps stored in this directory
    site_dir /srv/shiny-server;

    # Log all Shiny output to files in this directory
    log_dir /var/log/shiny-server;

    # When a user visits the base URL rather than a particular application,
    # an index of the applications available in this directory will be shown.
    directory_index on;
  }
}        


解決辦法：
把免費版本的配置檔案 替換掉商業版本的配置檔案就可以了。
[[email protected] shiny-server]# cp shiny-server.conf 10.1.32.8:/etc/shiny-server/
再啟動shiny-server正常
[[email protected] shiny-server]# start shiny-server
shiny-server start/running, process 20221