Help Center/ MapReduce Service/ Component Operation Guide (LTS)/ Using HetuEngine/ Configuring Data Sources/ Before You Start
Updated on 2022-11-18 GMT+08:00
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Before You Start

HetuEngine supports quick joint query of multiple data sources and GUI-based data source configuration and management. You can quickly add a data source on the HSConsole page.

Table 1 lists the data sources supported by HetuEngine of the current version.

Table 1 List for connecting HetuEngine to data sources

HetuEngine Mode

Data Source

Data Source Mode

Supported Data Source Version

Security mode

Hive

Security mode

MRS 3.x, FusionInsight 6.5.1, and Hive in the current cluster

HBase

MRS 3.x and FusionInsight 6.5.1

HetuEngine

MRS 3.x

GaussDB

GaussDB 200 and GaussDB A 8.0.0

Hudi

MRS 3.1.1 or later

ClickHouse

MRS 3.1.1 or later

Normal mode

Hive

Normal mode

MRS 3.x, FusionInsight 6.5.1, and Hive in the current cluster

HBase

MRS 3.x and FusionInsight 6.5.1

Hudi

MRS 3.1.1 or later

ClickHouse

MRS 3.1.1 or later

GaussDB

Security mode

GaussDB 200 and GaussDB A 8.0.0

Operations such as adding, configuring, and deleting a HetuEngine data source takes effect dynamically without restarting the cluster.

A configured data source takes effect dynamically and you cannot disable this function. By default, the interval for a data source to dynamically take effect is 60 seconds. You can change the interval to a desired one by changing the value of catalog.scanner-interval in coordinator.config.properties and worker.config.properties by referring to 3.e in Creating HetuEngine Compute Instances. See the following example.

catalog.scanner-interval =120s
  • The domain name of the data source cluster must be different from that of the HetuEngine cluster. In addition, two data sources with the same domain name cannot be connected to at the same time.
  • The data source cluster and the HetuEngine cluster can communicate with each other.
Parent topic: Configuring Data Sources