Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-12070 Controller Resource Is Abnormal
Updated on 2024-09-23 GMT+08:00
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ALM-12070 Controller Resource Is Abnormal

Alarm Description

HA checks the controller resources of Manager every 80 seconds. This alarm is generated when HA detects that the controller resources are abnormal for 2 consecutive times.

This alarm is cleared when the Controller resource is normal.

Resource Type of Controller is Single-active. Active/standby will be triggered upon resource exceptions. When this alarm is generated, the active/standby switchover is complete and new Controller resources have been enabled on the new active FusionInsight Manager. In this case, this alarm is cleared. This alarm is used to notify users of the cause of the active/standby switchover.

Attribute

Alarm ID

Alarm Severity

Auto Clear

12070

Major

Yes

Parameters

Parameter

Description

Source

Specifies the cluster or system for which the alarm is generated.

ServiceName

Specifies the name of 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 alarm persists for a long time, causing frequent active/standby switchovers of FusionInsight Manager. As a result, users cannot log in to FusionInsight Manager and perform O&M operations.
  • The Controller process repeatedly restarts, which may cause the native UI of the service login failure.

Possible Causes

The Controller process is abnormal.

Procedure

Check whether the controller process is normal.

  1. In the alarm list on FusionInsight Manager, locate the row that contains the alarm, and view the name of the host for which the alarm is generated.
  2. Log in to the host for which the alarm is generated as user root.
  3. Run the su - omm command to switch to user omm.Run the sh ${BIGDATA_HOME}/om-server/OMS/workspace0/ha/module/hacom/script/status_ha.sh command to check whether the status of the Controller resources managed by the HA is normal. In the single-node system, the Controller resource is in the normal state. In the dual-node system, the Controller resource is in the normal state on the active node and in the stopped state on the standby node.

    • If it is, go to 6.
    • If it is not, go to 4.

  4. Run the vi $BIGDATA_LOG_HOME/omm/oms/ha/scriptlog/controller.log command to view the Controller resource logs, and run the vi $BIGDATA_LOG_HOME/controller/controller.log command to view the Controller running logs, check whether the keyword ERROR exists. Analyze the logs to locate and rectify the fault.
  5. Five minutes later, check whether this alarm is cleared.

    • If it is, no further action is required.
    • If it is not, go to 6.

Collect fault information.

  1. On FusionInsight Manager, choose O&M > Log > Download.
  2. Select Controller and OmmServe for Service and click OK.
  3. Click in the upper right corner, and set Start Date and End Date for log collection to 1 hour before and after the alarm generation time, respectively. Then, click Download.
  4. Contact the O&M personnel and send the collected log information.

Alarm Clearing

After the fault is rectified, the system automatically clears this alarm.

Related Information

None