Hue (Active) Cannot Open Web Pages

Updated on 2023-09-05 GMT+08:00

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Symptom

The following information is displayed on the web UI of Hue (active):

Service Unavailable 
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Cause Analysis

The Hue configuration has expired.
The configuration of the Hue service needs to be modified manually in a single-master cluster of MRS 2.0.1 or later.

Solution

If the Hue configuration has expired, restart the Hue service.
Manually modify the Hue service configuration for a single-master cluster of MRS 2.0.1 or later.
1. Log in to the Master node.
2. Run the hostname -i command to obtain the IP address of the local host.
3. Run the following command to obtain the value of HUE_FLOAT_IP:
  grep "HUE_FLOAT_IP" ${BIGDATA_HOME}/MRS_Current/1_*/etc*/ENV_VARS,
  
  Replace MRS with the actual file name.
4. Check whether the local IP address is the same as the value of HUE_FLOAT_IP. If they are different, change the value of HUE_FLOAT_IP to the local IP address.
5. Restart the Hue service.