ALM-20002 Hue Service Unavailable

Alarm Description

The system checks the Hue service status every 60 seconds. This alarm is generated if the Hue service is unavailable.

This alarm is cleared when the Hue service is normal.

Alarm Attributes

Alarm Parameters

Impact on the System

Users cannot perform interactive analysis and data processing with MRS on the Hue UI.

Possible Causes

• The KrbServer service on which Hue depends is abnormal.
• The DBService service on which Hue depends is abnormal.
• The network connection to DBService is abnormal.

Handling Procedure

Check whether the KrbServer service is normal.

1. On FusionInsight Manager, choose Cluster > Name of the desired cluster > Services. In the service list, check whether the status of KrbServer is Normal.
   • If yes, go to 4.
   • If no, go to 2.

2. Manually restart the KrbServer service.
3. Wait for several minutes. Check whether the alarm is cleared.
   • If yes, no further action is required.
   • If no, go to 4.

Check whether DBService is normal.

4. Log in to FusionInsight Manager, click Cluster, click the name of the desired cluster, and click Services.
5. In the service list, check whether Health Status of DBService is Good.
   • If yes, go to 8.
   • If no, go to 6.

6. Restart the DBService service.
   

   To restart the service, you need to enter the password of the FusionInsight Manager administrator.

7. Wait for several minutes. Check whether the alarm is cleared.
   • If yes, no further action is required.
   • If no, go to 8.

Check whether the network connection to the DBService is normal.

8. On FusionInsight Manager, choose Cluster > Name of the desired cluster > Services, click Hue, and click the Instances tab. Record the IP address of the active Hue node.
9. Log in to the IP address of the active Hue node.
10. Run the ping command to check whether the network connection between the host where the active Hue is deployed and the host where DBService is deployed is normal. (The method of obtaining the DBService service IP address is the same as that of obtaining the active Hue IP address.)
    • If yes, go to 13.
    • If no, go to 11.

11. Contact the network administrator to restore the network.
12. Wait for several minutes. Check whether the alarm is cleared.
    • If yes, no further action is required.
    • If no, go to 13.

Collect fault information.

13. On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
14. Select the following components for Service.
    • Hue
    • Controller

15. Click in the upper right corner, and set Start Date and End Date for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click Download.
16. On FusionInsight Manager, choose Cluster, click the name of the desired cluster, and choose Services > Hue.
17. Choose More > Restart Service and click OK.

18. Check whether the alarm is cleared.
    • If yes, no further action is required.
    • If no, go to 19.

19. Contact O&M engineers and provide the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None.