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        • Importing OBS Data to Doris with Broker Load - MapReduce Service

          Importing OBS Data to Doris with Broker Load - MapReduce Service

          You need to delete the dirty data. Click Files in the navigation pane, click Create Folder, enter a folder name, for example, test, and click OK. Click the name of the new folder and click Upload File to upload the data, for example, to test_data.csv. Obtain AK/SK information.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using Doris > Importing Doris Data
        • Flink Job Pipeline Enhancement - MapReduce Service

          Flink Job Pipeline Enhancement - MapReduce Service

          When calling shutdown(), ZookeeperRegisterServerHandler deletes the registration information about the current concurrency, and then attempts to delete the topic node. If the topic node is not empty, deletion will be canceled, because not all concurrency has exited.

          Help > MapReduce Service > Service Overview > Components > Flink
        • Storm Log Introduction - MapReduce Service

          Storm Log Introduction - MapReduce Service

          By default, the system contains five ports: 29100, 29101, 29102, 29103 and 29304. supervisor/metadata/[topologyid]-worker-[Port number].yaml Worker log metadata file, which is used by logviewer to delete logs.

          Help > MapReduce Service > Component Operation Guide (Normal) > Using Storm
        • Creating a Kafka Topic - MapReduce Service

          Creating a Kafka Topic - MapReduce Service

          To reduce the dependency on the ZooKeeper component, the community will delete the support for this mode in later versions. When creating a topic in this mode, you can select a copy allocation policy by combining the --enable-rack-aware and --enable-az-aware options.

          Help > MapReduce Service > Component Operation Guide (Normal) > Using Kafka
        • CREATE MATERIALIZED VIEW - MapReduce Service

          CREATE MATERIALIZED VIEW - MapReduce Service

          Do not delete the data table of a materialized view in the catalog. Do not create a materialized view using the query statement that contains Order By. When creating an MV, ensure that the query does not contain subqueries or subquery joins.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using HetuEngine > Common HetuEngine SQL Syntax > HetuEngine DDL SQL Syntax
        • Hive JDBC Application Development - MapReduce Service

          Hive JDBC Application Development - MapReduce Service

          2023-05-17 20:26:34,032 INFO JDBCExample - _c0 2023-05-17 20:26:34,266 INFO JDBCExample - 0 2023-05-17 20:26:35,199 INFO JDBCExample - Delete table success! ... Parent topic: Rapidly Develop MRS Component Applications

          Help > MapReduce Service > Developer Guide (LTS) > Rapidly Develop MRS Component Applications
        • KeyTab File Authentication Using HSFabric - MapReduce Service

          KeyTab File Authentication Using HSFabric - MapReduce Service

          KeyTab File Authentication Using HSFabric Description This section describes how to use the KeyTab file to connect to HetuEngine, assemble SQL statements, and send the SQL statements to HetuEngine for execution to add, delete, modify, and query Hive data sources. public class JDBCExampleZk

          Help > MapReduce Service > Developer Guide (LTS) > HetuEngine Development Guide (Security Mode) > Application Development > Java Sample Code
        • Configuring External Metadata Storage for a Storage-Compute Decoupled MRS Cluster - MapReduce Service

          Configuring External Metadata Storage for a Storage-Compute Decoupled MRS Cluster - MapReduce Service

          If you are only setting this parameter, assign any value to it as needed. 31 days Delete Files After (Days) Number of days after the last update of an object that it will expire and be automatically deleted by OBS based on the rule.

          Help > MapReduce Service > Best Practices > MRS Cluster Management
        • LOAD DATA - MapReduce Service

          LOAD DATA - MapReduce Service

          Clean or delete bad records before loading data or stop the loading when bad records are found. There are many options for clearing source data during CarbonData data loading, as listed in Table 2.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using CarbonData > CarbonData Syntax Reference
        • ClickHouse User and Permission Management - MapReduce Service

          ClickHouse User and Permission Management - MapReduce Service

          The ClickHouse administrator has all the database operation permissions except the permissions to create, delete, and modify users and roles. Only the built-in user clickhouse of ClickHouse has the permission to manage users and roles. If yes, go to 3. If no, go to 4.

          Help > MapReduce Service > Component Operation Guide (Normal) > Using ClickHouse > ClickHouse User Permission Management
        • LOAD DATA - MapReduce Service

          LOAD DATA - MapReduce Service

          Clean or delete bad records before loading data or stop the loading when bad records are found. There are many options for clearing source data during CarbonData data loading, as listed in Table 2.

          Help > MapReduce Service > Component Operation Guide (Normal) > Using CarbonData (for MRS 3.x or Later) > CarbonData Syntax Reference > DML
        • Creating User-Defined Hive Functions - MapReduce Service

          Creating User-Defined Hive Functions - MapReduce Service

          Run the following command on the Hive Server to delete the function: DROP FUNCTION addDoubles; Extended Applications None Parent topic: Enterprise-Class Enhancement of Hive

          Help > MapReduce Service > Component Operation Guide (Normal) > Using Hive > Enterprise-Class Enhancement of Hive
        • Creating and Using a ClickHouse Cluster for Columnar Store - MapReduce Service

          Creating and Using a ClickHouse Cluster for Columnar Store - MapReduce Service

          CLUSTER default_cluster as test001.test010 ENGINE = Distributed(default_cluster, test001, test010, rand()); insert into test001.test010_dir values('2020-01-29',111,111,111); Query the distributed table. select * from test001.test010_dir; Figure 6 Viewing data in the test010_dir table Delete

          Help > MapReduce Service > Getting Started
        • Creating User-Defined Hive Functions - MapReduce Service

          Creating User-Defined Hive Functions - MapReduce Service

          Run the following command on the Hive Server to delete the function: DROP FUNCTION addDoubles; Extended Applications None Parent topic: Enterprise-Class Enhancements of Hive

          Help > MapReduce Service > Component Operation Guide (LTS) > Using Hive > Enterprise-Class Enhancements of Hive
        • Hive UDFs for Interconnecting with HetuEngine - MapReduce Service

          Hive UDFs for Interconnecting with HetuEngine - MapReduce Service

          To solve this problem, you need to delete the Hive UDF registration information.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using HetuEngine > Developing and Deploying HetuEngine UDFs
        • Installing a Client - MapReduce Service

          Installing a Client - MapReduce Service

          You must delete the client installation directory when uninstalling a client. To ensure that an installed client can only be used by the installation user (for example, user_client), add parameter -o during the installation. That is, run the .

          Help > MapReduce Service > Component Operation Guide (LTS) > Appendix > Using an MRS Client
        • Creating a FlinkServer Job to Write Data to an HDFS - MapReduce Service

          Creating a FlinkServer Job to Write Data to an HDFS - MapReduce Service

          Delete the comma (,) in the previous line. 'properties.security.protocol' = 'SASL_PLAINTEXT',--This parameter is not required for clusters in normal mode.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using Flink > Creating a FlinkServer Job
        • Preparing the Flink Application Security Authentication - MapReduce Service

          Preparing the Flink Application Security Authentication - MapReduce Service

          You are advised to delete the configuration file or use other secure methods to keep the password.

          Help > MapReduce Service > Developer Guide (Normal_Earlier Than 3.x) > Flink Development Guide > Preparing a Flink Application Development Environment
        • Glossary - MapReduce Service

          Glossary - MapReduce Service

          The core instructions in this set are INSERT, UPDATE, and DELETE, which respectively mean inserting, updating, and deleting. These instructions are indispensable for developing data-centered applications.

          Help > MapReduce Service > Glossary
        • Glossary - MapReduce Service

          Glossary - MapReduce Service

          The core instructions in this set are INSERT, UPDATE, and DELETE, which respectively mean inserting, updating, and deleting. These instructions are indispensable for developing data-centered applications.

          Help > MapReduce Service > Glossary
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