• MapReduce Service

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  6. ALM-20002 Hue Service Unavailable

ALM-20002 Hue Service Unavailable

Description

The system checks the Hue service status every 60 seconds. This alarm is generated when the Hue service is unavailable and is cleared when the Hue service recovers.

Attribute

Alarm ID

Alarm Severity

Automatically Cleared

20002

Critical

Yes

Parameters

Parameter

Description

ServiceName

Specifies the service for which the alarm is generated.

RoleName

Specifies the role for which the alarm is generated.

HostName

Specifies the host for which the alarm is generated.

Impact on the System

The system cannot provide data loading, query, and extraction services.

Possible Causes

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

Procedure

Check whether the KrbServer is abnormal.

  1. On the MRS Manager home page, click Service. In the service list, check whether the KrbServer health status is Good.

  2. Click Restart in the Operation column of the KrbServer to restart the KrbServer.
  3. Wait several minutes, and check whether ALM-20002 Hue Service Unavailable is cleared.

    • If yes, no further action is required.
    • If no, go to Step 4.

Check whether the DBService is abnormal.

  1. On the MRS Manager home page, click Service.
  2. In the service list, check whether the DBService health status is Good.

  3. Click Restart in the Operation column of the DBService to restart the DBService.

    NOTE:

    To restart the service, enter the MRS Manager administrator password and select Start or restart related services..

  4. Wait several minutes, and check whether ALM-20002 Hue Service Unavailable is cleared.

    • If yes, no further action is required.
    • If no, go to Step 8.

Check whether the network connection to the DBService is normal.

  1. Choose Service > Hue > Instance, record the IP address of the active Hue.
  2. Use PuTTY to log in to the active Hue.
  3. Run the ping command to check whether communication between the host that runs the active Hue and the hosts that run the DBService is normal. (Obtain the IP addresses of the hosts that run the DBService in the same way as that for obtaining the IP address of the active Hue.)

  4. Contact the administrator to restore the network.
  5. Wait several minutes, and check whether ALM-20002 Hue Service Unavailable is cleared.

    • If yes, no further action is required.
    • If no, go to Step 13.

Collect fault information.

  1. On MRS Manager, choose System > Export Log.
  2. Select the following nodes from the Service drop-down list and click OK:

    • Hue
    • Controller

  3. Set Start Time for log collection to 10 minutes ahead of the alarm generation time and End Time to 10 minutes behind the alarm generation time, and click Download.

The Hue is restarted.

  1. On MRS Manager, choose Service > Hue.
  2. Choose More Actions > Restart service, and click OK.
  3. Check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 19.

  4. Contact Technical Support.
  5. Contact technical support engineers for help, detail see technical support.

Related Information

N/A