Help Center/ MapReduce Service/ Troubleshooting/ Common Exceptions in Logging In to the Cluster Manager/ Common Exceptions in Accessing the MRS Web UI/ Hue (Active) Cannot Open Web Pages
Updated on 2025-12-01 GMT+08:00
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Hue (Active) Cannot Open Web Pages

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.