ALM-16048 Tez or Spark Library Path Does Not Exist

The system checks the Tez and Spark library paths every 180 seconds. This alarm is generated when the Tez or Spark library path does not exist.

Alarm ID	Alarm Severity	Auto Clear
16048	Major	Yes

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.

The Hive on Tez and Hive on Spark functions are affected.

The Tez or Spark library path is deleted from the HDFS.

Check the default Hive data warehouse.

Log in to the node where the client is located as user root.
Run the following command to check whether the tezlib or sparklib directory exists in the hdfs://hacluster/user/{User name}/.Trash/Current/ director:

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

For example, the following information shows that /user/hive/tezlib/8.1.0.1/ and /user/hive/sparklib/8.1.0.1/ exist.
```
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.
Run the following command to restore tezlib and sparklib.

hdfs dfs -mv hdfs://hacluster/user/<username>/.Trash/Current/user/hive/tezlib/8.1.0.1/tez.tar.gz /user/hive/tezlib/8.1.0.1/tez.tar.gz
Check whether the alarm is cleared.
- If yes, no further action is required.
- If no, go to 5.
Collect fault information.
Collect related information in the .Trash/Current/ directory on the client background.
Contact the O&M personnel and send the collected logs.