Agent Processes Are not Started

1. Run the following command to check whether the CWP processes exist: ps -ef|grep YD.
2. In normal state, CWP has two processes as shown below:
   
3. If the processes do not exist, possible reasons include the following:
   • The CWP agent is not installed on or has been uninstalled from the server. Please see Getting Started and follow the instructions to install the agent.
   • The agent has a conflict or crash and thus cannot be started.
4. Troubleshooting methods:
   • View the agent log stored in /usr/local/qcloud/YunJing/log.
   • Run the following command to manually start the agent: /usr/local/qcloud/YunJing/YDEyes/YDService.

Network Failures

If the processes exist, but CWP is offline, the issue is caused by network disconnection in most cases. Troubleshoot the network issue as shown below:

1. Run the following command to check whether the DNS has been modified:

   • Basic network environment (non-VPC servers): telnet s.yd.qcloud.com 5574.
   • VPC or CPM environment: telnet s.yd.tencentyun.com 5574.

   In normal state, the returned result is as shown below:
   

2. Make sure your firewall policies allows the following TCP ports: 5574, 8080, 80, and 9080.