Skip to main content
Version: 2.3.6

quick-start-flink

Quick Start With Flink

Step 1: Deploy SeaTunnel And Connectors​

Before starting, make sure you have downloaded and deployed SeaTunnel as described in Deployment

Please Download Flink first(required version >= 1.12.0). For more information you can see Getting Started: Standalone

Configure SeaTunnel: Change the setting in ${SEATUNNEL_HOME}/config/seatunnel-env.sh and set FLINK_HOME to the Flink deployment dir.

Step 3: Add Job Config File To Define A Job​

Edit config/v2.streaming.conf.template, which determines the way and logic of data input, processing, and output after seatunnel is started. The following is an example of the configuration file, which is the same as the example application mentioned above.

env {
  parallelism = 1
  job.mode = "BATCH"
}

source {
  FakeSource {
    result_table_name = "fake"
    row.num = 16
    schema = {
      fields {
        name = "string"
        age = "int"
      }
    }
  }
}

transform {
  FieldMapper {
    source_table_name = "fake"
    result_table_name = "fake1"
    field_mapper = {
      age = age
      name = new_name
    }
  }
}

sink {
  Console {
    source_table_name = "fake1"
  }
}

More information about config please check Config Concept

Step 4: Run SeaTunnel Application​

You can start the application by the following commands:

Flink version between 1.12.x and 1.14.x

cd "apache-seatunnel-${version}"
./bin/start-seatunnel-flink-13-connector-v2.sh --config ./config/v2.streaming.conf.template

Flink version between 1.15.x and 1.16.x

cd "apache-seatunnel-${version}"
./bin/start-seatunnel-flink-15-connector-v2.sh --config ./config/v2.streaming.conf.template

See The Output: When you run the command, you can see its output in your console. This is a sign to determine whether the command ran successfully or not.

The SeaTunnel console will print some logs as below:

fields : name, age
types : STRING, INT
row=1 : elWaB, 1984352560
row=2 : uAtnp, 762961563
row=3 : TQEIB, 2042675010
row=4 : DcFjo, 593971283
row=5 : SenEb, 2099913608
row=6 : DHjkg, 1928005856
row=7 : eScCM, 526029657
row=8 : sgOeE, 600878991
row=9 : gwdvw, 1951126920
row=10 : nSiKE, 488708928
row=11 : xubpl, 1420202810
row=12 : rHZqb, 331185742
row=13 : rciGD, 1112878259
row=14 : qLhdI, 1457046294
row=15 : ZTkRx, 1240668386
row=16 : SGZCr, 94186144

What's More​

For now, you have taken a quick look about SeaTunnel with Flink, and you can see Connector to find all sources and sinks SeaTunnel supported. Or see SeaTunnel With Flink if you want to know more about SeaTunnel With Flink.

SeaTunnel have a builtin engine named Zeta, and it's the default engine of SeaTunnel. You can follow Quick Start to configure and run a data synchronization job.