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HUAWEI CLOUD Stack 6.5.0 Alarm and Event Reference 04

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ALM-37021 Abnormal CM_SERVER Process

ALM-37021 Abnormal CM_SERVER Process

Description

This alarm is generated if:

  • The CM_SERVER instance process does not have the cm_server.conf configuration file.
  • The CM_SERVER instance process has no read or write permission on its data directory.

Attribute

Alarm ID

Alarm Severity

Auto Clear

37021

Major

Yes

Parameters

Name

Meaning

ServiceName

Identifies the service for which the alarm is generated.

RoleName

Identifies the role for which the alarm is generated.

HostName

Identifies the host for which the alarm is generated.

Instance

Identifies the instance for which the alarm is generated.

Impact on the System

If the CM_SERVER instance fails to be started, the cluster displays a start failure message. The database system functions properly if no other exception occurs. However, the user or administrator cannot obtain the accurate cluster status.

Possible Causes

  • The CM_SERVER instance process does not have the cm_server.conf configuration file.
  • The CM_SERVER instance process has no read or write permission on its data directory.

Procedure

Locate the alarm cause.

  1. Log in to the FusionInsight Manager.

    1. Log in to the ManageOne OM plane using a browser, then choose Alarms.
      • Login address: https://URL for the homepage of the ManageOne OM plane:31943. Example: https://oc.type.com:31943.
      • Default username: admin, default password: Huawei12#$.
    2. In the alarm list, locate and click the target alarm name in the Name column. The Alarm Details and Handling Recommendations dialog box is displayed.
    3. Locate the value in the IP Address/URL/Domain Name column, which is the float IP address of the FusionInsight Manager.
    4. Log in to the FusionInsight Manager using a browser.
      • Login address: https://float IP address of the FusionInsight Manager:28443/web. Example: https://10.10.192.100:28443/web.
      • Default username: admin, default password: obtain it from the system administrator.

  2. On FusionInsight Manager, click Alarms. On the alarm list, locate the alarm and obtain the information about the node and instance for which the alarm is generated from Location in the Alarm Details area.
  3. Log in to the node where the alarm is generated as the omm user. Check whether cm_server.conf exists in the directory Assume that the data directory of the instance is /opt/huawei/Bigdata/mppdb/cm/cm_server.).

    Default user: omm, default password: Bigdata123@.
    • If yes, go to 4.
    • If no, run gs_replace to replace the instance. For details, see "Rectifying an MPPDBServer Instance" in the Product Documentation. Then, go to 4.

  4. Check whether the database administrator has the permission to access /opt/huawei/Bigdata/mppdb/cm/cm_server. If the administrator has no permission, add the permission using the chmod command.
  5. After 5 minutes, check whether the alarm persists.

    • If yes, go to 6.
    • If no, no further action is required.

Collect fault information.

  1. On FusionInsight Manager, choose System > Log Download.
  2. Select MPPDB from the Services drop-down list box and click OK.
  3. Set Start Time for log collection to 1 hour ahead of the alarm generation time and End Time to 1 hour after the alarm generation time, and click Download.
  4. Contact Technical Support and send the collected logs.

Alarm Clearing

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

Related Information

None

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Updated: 2019-08-30

Document ID: EDOC1100062365

Views: 48427

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