Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-16045 Hive Data Warehouse Is Deleted
Updated on 2024-09-23 GMT+08:00
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ALM-16045 Hive Data Warehouse Is Deleted

Description

The system checks the Hive data warehouse in every 60 seconds.This alarm is generated when the Hive data warehouse is deleted.

Attribute

Alarm ID

Alarm Severity

Auto Clear

16045

Critical

Yes

Parameters

Name

Meaning

Source

Specifies the cluster for which the alarm is generated.

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 default Hive data warehouse is deleted. As a result, creating databases or tables in the default data warehouse fails, and services are affected.

Possible Causes

Hive periodically checks the status of the default data warehouse and finds that the default data warehouse is deleted.

Procedure

Check the default Hive data warehouse.

  1. Log in to the node where the client is located as user root.
  1. Run the following command to check whether the warehouse directory exists in hdfs://hacluster/user/<username>/.Trash/Current/.

    hdfs dfs -ls hdfs://hacluster/user/<username>/.Trash/Current/

    For example, if user/hive/warehouse exists: 
    host01:/opt/client # hdfs dfs -ls hdfs://hacluster/user/test/.Trash/Current/
Found 1 items
drwx------   - test hadoop          0 2019-06-17 19:53 hdfs://hacluster/user/test/.Trash/Current/user
    • If yes, go to 3.
    • If no, go to 5.

  1. By default, there is an automatic recovery mechanism for the data warehouse. You can wait for 5 ~10s to check whether the default data warehouse is restored. If the data warehouse is not recovered, manually run the following command to restore the data warehouse.

    hdfs dfs -mv hdfs://hacluster/user/<username>/.Trash/Current/user/hive/warehouse /user/hive/warehouse

  2. Check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 5.

Collect fault information.

  1. Collect related information in the .Trash/Current/ directory on the client background.
  2. Contact the O&M personnel and send the collected logs.

Alarm Clearing

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

Related Information

None