Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Edge Security
Situation Awareness
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Databases
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive

Running a HiveSQL Job

Updated on 2024-09-23 GMT+08:00

MRS allows you to submit and run your own programs, and get the results. This section will show you how to submit a HiveSQL job in an MRS cluster.

HiveSQL jobs enable the submission of SQL statements and script files for data analysis and querying. Both SQL statements and scripts are supported, and script files can be used to submit sensitive information.

You can create a job online and submit it for running on the MRS console, or submit a job in CLI mode on the MRS cluster client.

Prerequisites

  • You have uploaded the program packages and data files required by jobs to OBS or HDFS.
  • If the job program needs to read and analyze data in the OBS file system, you need to configure storage-compute decoupling for the MRS cluster. For details, see Configuring Storage-Compute Decoupling for an MRS Cluster.

Submitting a Job on the Console

  1. Log in to the MRS console.
  2. On the Active Clusters page, select a running cluster and click its name to switch to the cluster details page.
  3. In the Basic Information area of the Dashboard page, click Synchronize on the right side of IAM User Sync to synchronize IAM users.

    Perform this step only when Kerberos authentication is enabled for the cluster.

    NOTE:
    • After the IAM user synchronization is complete, wait for 5 minutes before submitting a job. For details about IAM user synchronization, see Synchronizing IAM Users to MRS..
    • When the policy of the user group an IAM user belongs to changes from MRS ReadOnlyAccess to MRS CommonOperations, MRS FullAccess, or MRS Administrator, or vice versa, it takes time for the cluster node's System Security Services Daemon (SSSD) cache to refresh. To prevent job submission failure, wait for five minutes after user synchronization is complete before submitting the job with the new policy.
    • If the IAM username contains spaces (for example, admin 01), jobs cannot be added.

  4. Click Job Management. On the displayed job list page, click Create.
  5. Set Type to HiveSql and configure HiveSQL job information be referring to Table 1.

    Figure 1 Adding a HiveSQL job
    Table 1 Job configuration information

    Parameter

    Description

    Example

    Name

    Job name. It contains 1 to 64 characters. Only letters, digits, hyphens (-), and underscores (_) are allowed.

    hivesql

    SQL Type

    Submission type of the SQL statement.

    • SQL: Run the entered SQL statement.
    • Script: Load SQL scripts from HDFS or OBS to run SQL statements.

    SQL

    SQL Statement

    This parameter is valid only when SQL Type is set to SQL. Enter the SQL statement to be executed, and then click Check to check whether the SQL statement is correct.

    If you want to submit and execute multiple statements at the same time, use semicolons (;) to separate them.

    -

    SQL File

    This parameter is valid only when SQL Type is set to Script. The path of the SQL file to be executed must meet the following requirements:

    Path of the SQL script file to be executed. You can enter the path or click HDFS or OBS to select a file.

    • The value contains a maximum of 1,023 characters. It cannot contain special characters (;|&>,<'$) and cannot be left blank or all spaces.
    • The OBS program path should start with obs://, for example, obs://wordcount/program/XXX.jar. The HDFS program path should start with hdfs://, for example, hdfs://hacluster/user/XXX.jar.
    • The HiveScript file must end with .sql.

    obs://wordcount/program/test.sql

    Program Parameter

    (Optional) Used to configure optimization parameters such as threads, memory, and vCPUs for the job to optimize resource usage and improve job execution performance.

    Table 2 lists the common program parameters of HiveSQL jobs. You can configure the parameters based on the execution program and cluster resources.

    -

    Service Parameter

    (Optional) Service parameters for the job.

    To modify the current job, change this parameter. For permanent changes to the entire cluster, refer to Modifying the Configuration Parameters of an MRS Cluster Component and modify the cluster component parameters accordingly.

    Click on the right to add more parameters.

    For example, add the following service configuration parameters:

    • fs.obs.access.key: key ID used to access OBS in AK/SK mode.
    • fs.obs.secret.key: key used to access OBS in AK/SK mode.
    • hive.execution.engine: engine for executing the job. The value can be mr or tez.

    -

    Command Reference

    Command submitted to the background for execution when a job is submitted.

    beeline-e"SELECT * for TABLE test;"

    Table 2 HiveSQL job running program parameters

    Parameter

    Description

    Example Value

    --hiveconf

    Configure the Hive service.

    For example, set the execution engine to MapReduce.

    • Parameter: --hiveconf
    • Value: hive.execution.engine=mr

    --hivevar

    Set user-defined variables.

    Set the variable ID as follows:

    • Parameter: --hivevar id
    • Value: "123" select * from test where id = ${hivevar:id};

  6. Confirm job configuration information and click OK.
  7. After the job is submitted, you can view the job running status and execution result in the job list. After the job status changes to Completed, you can view the analysis result of related programs.

Submitting a Job Using the Cluster Client

  1. Install the MRS cluster client. For details, see Installing an MRS Cluster Client.

    The MRS cluster comes with a client installed for job submission by default, which can also be used directly. For MRS 3.x and later versions, the default client installation path is /opt/Bigdata/client on the Master node. For versions earlier than MRS 3.x, the default client installation path is /opt/client on the Master node.

  2. Log in to the node where the client is located as the MRS cluster client installation user.
  3. Initialize environment variables.

    cd /opt/Bigdata/client

    source bigdata_env

  4. Perform authentication if Kerberos authentication has been enabled for the current cluster.

    Skip this step for normal clusters.

    kinit MRScluster service user

    The MRS cluster service user needs to create a service user who has the permission to submit jobs on Manager. The user needs to be added to the hive user group. For details, see Creating an MRS Cluster User.

    Example:

    kinit testuser

  5. Run the beeline command to connect to Hive in the cluster and run related tasks.

    beeline -f SQL file (SQL statements in the execution files.)

    To specify a component service user for normal clusters, use the command below. If no service user is specified, HiveServer will connect using the current OS user.

    beeline -nMRS cluster service user

We use cookies to improve our site and your experience. By continuing to browse our site you accept our cookie policy. Find out more

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback