Set Up with Kubernetes

This section provides a quick guide to using SeaTunnel with Kubernetes.

Prerequisites

We assume that you have a local installations of the following:

• docker
• kubernetes
• helm

So that the kubectl and helm commands are available on your local system.

For kubernetes minikube is our choice, at the time of writing this we are using version v1.23.3. You can start a cluster with the following command:

minikube start --kubernetes-version=v1.23.3

Installation

SeaTunnel docker image

To run the image with SeaTunnel, first create a Dockerfile:

Flink

FROM apache/flink:1.13

ENV SEATUNNEL_VERSION="2.3.3"
ENV SEATUNNEL_HOME="/opt/seatunnel"

RUN wget https://dlcdn.apache.org/seatunnel/${SEATUNNEL_VERSION}/apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN tar -xzvf apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN mv apache-seatunnel-${SEATUNNEL_VERSION} ${SEATUNNEL_HOME}

RUN cd ${SEATUNNEL_HOME} && bash bin/install-plugin.sh ${SEATUNNEL_VERSION}

Then run the following commands to build the image:

docker build -t seatunnel:2.3.3-flink-1.13 -f Dockerfile .

Image seatunnel:2.3.3-flink-1.13 need to be present in the host (minikube) so that the deployment can take place.

Load image to minikube via:

minikube image load seatunnel:2.3.3-flink-1.13

Spark

FROM apache/spark:3.3.3-scala2.12-java11-ubuntu

USER root

ENV SEATUNNEL_VERSION="2.3.3"
ENV SEATUNNEL_HOME="/opt/seatunnel"

RUN wget https://dlcdn.apache.org/seatunnel/${SEATUNNEL_VERSION}/apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN tar -xzvf apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN mv apache-seatunnel-${SEATUNNEL_VERSION} ${SEATUNNEL_HOME}

RUN cd ${SEATUNNEL_HOME} && bash bin/install-plugin.sh ${SEATUNNEL_VERSION}

Then run the following commands to build the image:

docker build -t seatunnel:2.3.3-spark-3.3.3 -f Dockerfile .

Image seatunnel:2.3.3-spark-3.3.3 need to be present in the host (minikube) so that the deployment can take place.

Load image to minikube via:

minikube image load seatunnel:2.3.3-spark-3.3.3

Zeta (local-mode)

FROM openjdk:8

ENV SEATUNNEL_VERSION="2.3.3"
ENV SEATUNNEL_HOME="/opt/seatunnel"

RUN wget https://dlcdn.apache.org/seatunnel/${SEATUNNEL_VERSION}/apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN tar -xzvf apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN mv apache-seatunnel-${SEATUNNEL_VERSION} ${SEATUNNEL_HOME}

RUN cd ${SEATUNNEL_HOME}||sh bin/install-plugin.sh ${SEATUNNEL_VERSION}

Then run the following commands to build the image:

docker build -t seatunnel:2.3.3 -f Dockerfile .

Image seatunnel:2.3.3 need to be present in the host (minikube) so that the deployment can take place.

Load image to minikube via:

minikube image load seatunnel:2.3.3

Zeta (cluster-mode)

FROM openjdk:8

ENV SEATUNNEL_VERSION="2.3.3"
ENV SEATUNNEL_HOME="/opt/seatunnel"

RUN wget https://dlcdn.apache.org/seatunnel/${SEATUNNEL_VERSION}/apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN tar -xzvf apache-seatunnel-${SEATUNNEL_VERSION}-bin.tar.gz
RUN mv apache-seatunnel-${SEATUNNEL_VERSION} ${SEATUNNEL_HOME}
RUN mkdir -p $SEATUNNEL_HOME/logs
RUN cd ${SEATUNNEL_HOME}||sh bin/install-plugin.sh ${SEATUNNEL_VERSION}

Then run the following commands to build the image:

docker build -t seatunnel:2.3.3 -f Dockerfile .

Image seatunnel:2.3.3 need to be present in the host (minikube) so that the deployment can take place.

Load image to minikube via:

minikube image load seatunnel:2.3.3

Deploying the operator

Flink

The steps below provide a quick walk-through on setting up the Flink Kubernetes Operator. You can refer to Flink Kubernetes Operator - Quick Start for more details.

Notice: All the Kubernetes resources bellow are created in default namespace.

Install the certificate manager on your Kubernetes cluster to enable adding the webhook component (only needed once per Kubernetes cluster):

kubectl create -f https://github.com/jetstack/cert-manager/releases/download/v1.8.2/cert-manager.yaml

Now you can deploy the latest stable Flink Kubernetes Operator version using the included Helm chart:

helm repo add flink-kubernetes-operator-1.3.1 https://archive.apache.org/dist/flink/flink-kubernetes-operator-1.3.1/

helm install flink-kubernetes-operator flink-kubernetes-operator-1.3.1/flink-kubernetes-operator \
--set webhook.create=false --set image.repository=apache/flink-kubernetes-operator

You may verify your installation via kubectl:

kubectl get pods
NAME                                                   READY   STATUS    RESTARTS      AGE
flink-kubernetes-operator-5f466b8549-mgchb             1/1     Running   3 (23h ago)   16d

Spark

The steps below provide a quick walk-through on setting up the Spark Kubernetes Operator. You can refer to Spark Kubernetes Operator - Quick Start for more details.

Notice: All the Kubernetes resources bellow are created in default namespace.

Install the certificate manager on your Kubernetes cluster to enable adding the webhook component (only needed once per Kubernetes cluster):

kubectl create -f https://github.com/jetstack/cert-manager/releases/download/v1.8.2/cert-manager.yaml

Now you can deploy the latest stable spark Kubernetes Operator version using the included Helm chart:

helm repo add spark-operator https://googlecloudplatform.github.io/spark-on-k8s-operator

helm install seatunnel spark-operator/spark-operator \
--set webhook.enable=true  --set serviceAccounts.spark.name=spark

You may verify your installation via kubectl:

kubectl get pods
NAME                                         READY   STATUS    RESTARTS   AGE
seatunnel-spark-operator-57d966fdfc-v2mmw   1/1     Running   0          17s

Zeta (local-mode)

none

Zeta (cluster-mode)

none

Run SeaTunnel Application

Run Application:: SeaTunnel already providers out-of-the-box configurations.

In this guide we are going to use seatunnel.streaming.conf:

env {
  execution.parallelism = 1
  job.mode = "STREAMING"
  checkpoint.interval = 2000
}

source {
    FakeSource {
      result_table_name = "fake"
      row.num = 160000
      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"
  }
}

Generate a configmap named seatunnel-config in Kubernetes for the seatunnel.streaming.conf so that we can mount the config content in pod.

kubectl create cm seatunnel-config \
--from-file=seatunnel.streaming.conf=seatunnel.streaming.conf

Flink

Once the Flink Kubernetes Operator is running as seen in the previous steps you are ready to submit a Flink (SeaTunnel) job:

• Create seatunnel-flink.yaml FlinkDeployment manifest:

apiVersion: flink.apache.org/v1beta1
kind: FlinkDeployment
metadata:
  name: seatunnel-flink-streaming-example
spec:
  image: seatunnel:2.3.3-flink-1.13
  flinkVersion: v1_13
  flinkConfiguration:
    taskmanager.numberOfTaskSlots: "2"
  serviceAccount: flink
  jobManager:
    replicas: 1
    resource:
      memory: "1024m"
      cpu: 1
  taskManager:
    resource:
      memory: "1024m"
      cpu: 1
  podTemplate:
    spec:
      containers:
        - name: flink-main-container
          volumeMounts:
            - name: seatunnel-config
              mountPath: /data/seatunnel.streaming.conf
              subPath: seatunnel.streaming.conf
      volumes:
        - name: seatunnel-config
          configMap:
            name: seatunnel-config
            items:
            - key: seatunnel.streaming.conf
              path: seatunnel.streaming.conf
  job:
    jarURI: local:///opt/seatunnel/starter/seatunnel-flink-13-starter.jar
    entryClass: org.apache.seatunnel.core.starter.flink.SeaTunnelFlink
    args: ["--config", "/data/seatunnel.streaming.conf"]
    parallelism: 2
    upgradeMode: stateless

• Run the example application:

kubectl apply -f seatunnel-flink.yaml

Spark

Once the Spark Kubernetes Operator is running as seen in the previous steps you are ready to submit a Spark (SeaTunnel) job:

• Create seatunnel-spark.yaml Spark Deployment manifest:

apiVersion: "sparkoperator.k8s.io/v1beta2"
kind: SparkApplication
metadata:
  name: seatunnel-spark-streaming-example
spec:
  type: Java
  mode: cluster
  image: seatunnel:2.3.3-spark-3.3.3
  imagePullPolicy: Always
  mainClass: org.apache.seatunnel.core.starter.spark.SeaTunnelSpark
  mainApplicationFile: "local:///opt/seatunnel/starter/seatunnel-spark-3-starter.jar"
  arguments: ["--config", "/data/seatunnel.streaming.conf"]
  sparkVersion: "3.3.3"
  restartPolicy:
    type: Never
  volumes:
    - name: "test-volume"
      hostPath:
        path: "/tmp"
        type: Directory
  driver:
    cores: 1
    coreLimit: "1200m"
    memory: "512m"
    labels:
      version: 3.1.1
    serviceAccount: spark
    configMaps:
      - name: seatunnel-config
        path: seatunnel.streaming.conf
    volumeMounts:
      - name: "test-volume"
        mountPath: "/tmp"
  executor:
    cores: 1
    instances: 1
    memory: "512m"
    labels:
      version: 3.1.1
    configMaps:
      - name: seatunnel-config
        path: seatunnel.streaming.conf
    volumeMounts:
      - name: "test-volume"
        mountPath: "/tmp"

• Run the example application:

kubectl apply -f seatunnel-spark.yaml

Zeta (local-mode)

• Create seatunnel.yaml:

apiVersion: v1
kind: Pod
metadata:
  name: seatunnel
spec:
  containers:
  - name: seatunnel
    image: seatunnel:2.3.3
    command: ["/bin/sh","-c","/opt/seatunnel/bin/seatunnel.sh --config /data/seatunnel.streaming.conf -e local"]
    resources:
      limits:
        cpu: "1"
        memory: 4G
      requests:
        cpu: "1"
        memory: 2G
    volumeMounts:
      - name: seatunnel-config
        mountPath: /data/seatunnel.streaming.conf
        subPath: seatunnel.streaming.conf
  volumes:
        - name: seatunnel-config
          configMap:
            name: seatunnel-config
            items:
            - key: seatunnel.streaming.conf
              path: seatunnel.streaming.conf

• Run the example application:

kubectl apply -f seatunnel.yaml

Zeta (cluster-mode)

Then, we use the following command to load some configuration files used by the seatunnel cluster into the configmap

Create the yaml file locally as follows

• Create hazelcast-client.yaml:

hazelcast-client:
  cluster-name: seatunnel
  properties:
    hazelcast.logging.type: log4j2
  network:
    cluster-members:
      - localhost:5801

• Create hazelcast.yaml:

hazelcast:
  cluster-name: seatunnel
  network:
    rest-api:
      enabled: true
      endpoint-groups:
        CLUSTER_WRITE:
          enabled: true
        DATA:
          enabled: true
    join:
      tcp-ip:
        enabled: true
        member-list:
          - localhost
    port:
      auto-increment: false
      port: 5801
  properties:
    hazelcast.invocation.max.retry.count: 20
    hazelcast.tcp.join.port.try.count: 30
    hazelcast.logging.type: log4j2
    hazelcast.operation.generic.thread.count: 50

• Create seatunnel.yaml:

seatunnel:
  engine:
    history-job-expire-minutes: 1440
    backup-count: 1
    queue-type: blockingqueue
    print-execution-info-interval: 60
    print-job-metrics-info-interval: 60
    slot-service:
      dynamic-slot: true
    checkpoint:
      interval: 10000
      timeout: 60000
      storage:
        type: hdfs
        max-retained: 3
        plugin-config:
          namespace: /tmp/seatunnel/checkpoint_snapshot
          storage.type: hdfs
          fs.defaultFS: file:///tmp/ # Ensure that the directory has written permission

Create congfigmaps for the configuration file using the following command

kubectl create configmap hazelcast-client  --from-file=hazelcast-client.yaml
kubectl create configmap hazelcast  --from-file=hazelcast.yaml
kubectl create configmap seatunnelmap  --from-file=seatunnel.yaml

Deploy Reloader to achieve hot deployment We use the Reloader here to automatically restart the pod when the configuration file or other modifications are made. You can also directly give the value of the configuration file and do not use the Reloader

• Reloader

wget https://raw.githubusercontent.com/stakater/Reloader/master/deployments/kubernetes/reloader.yaml
kubectl apply -f reloader.yaml

• Create seatunnel-cluster.yml:

apiVersion: v1
kind: Service
metadata:
  name: seatunnel
spec:
  selector:
    app: seatunnel
  ports:
  - port: 5801
    name: seatunnel
  clusterIP: None
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: seatunnel
  annotations:
    configmap.reloader.stakater.com/reload: "hazelcast,hazelcast-client,seatunnelmap"
spec:
  serviceName: "seatunnel"
  replicas: 3  # modify replicas according to your case
  selector:
    matchLabels:
      app: seatunnel
  template:
    metadata:
      labels:
        app: seatunnel
    spec:
      containers:
        - name: seatunnel
          image: seatunnel:2.3.3
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 5801
              name: client
          command: ["/bin/sh","-c","/opt/seatunnel/bin/seatunnel-cluster.sh -DJvmOption=-Xms2G -Xmx2G"]
          resources:
            limits:
              cpu: "1"
              memory: 4G
            requests:
              cpu: "1"
              memory: 2G
          volumeMounts:
            - mountPath: "/opt/seatunnel/config/hazelcast.yaml"
              name: hazelcast
              subPath: hazelcast.yaml
            - mountPath: "/opt/seatunnel/config/hazelcast-client.yaml"
              name: hazelcast-client
              subPath: hazelcast-client.yaml
            - mountPath: "/opt/seatunnel/config/seatunnel.yaml"
              name: seatunnelmap
              subPath: seatunnel.yaml
            - mountPath: /data/seatunnel.streaming.conf
              name: seatunnel-config
              subPath: seatunnel.streaming.conf
      volumes:
        - name: hazelcast
          configMap:
            name: hazelcast
        - name: hazelcast-client
          configMap:
            name: hazelcast-client
        - name: seatunnelmap
          configMap:
            name: seatunnelmap
        - name: seatunnel-config
          configMap:
            name: seatunnel-config
            items:
            - key: seatunnel.streaming.conf
              path: seatunnel.streaming.conf

• Starting a cluster:

kubectl apply -f seatunnel-cluster.yml

Then modify the seatunnel configuration in pod using the following command

kubectl edit cm hazelcast

Change the member-list option to your cluster address

This uses the headless service access mode

The format for accessing between general pods is [pod-name].[service-name].[namespace].svc.cluster.local

for example:

- seatunnel-0.seatunnel.default.svc.cluster.local
- seatunnel-1.seatunnel.default.svc.cluster.local
- seatunnel-2.seatunnel.default.svc.cluster.local

kubectl edit cm hazelcast-client

Change the cluster-members option to your cluster address

for example:

- seatunnel-0.seatunnel.default.svc.cluster.local:5801
- seatunnel-1.seatunnel.default.svc.cluster.local:5801
- seatunnel-2.seatunnel.default.svc.cluster.local:5801

Later, you will see that the pod automatically restarts and updates the seatunnel configuration

kubectl edit cm hazelcast-client

After we wait for all pod updates to be completed, we can use the following command to check if the configuration inside the pod has been updated

kubectl exec -it  seatunnel-0  -- cat /opt/seatunnel/config/hazelcast-client.yaml

Afterwards, we can submit tasks to any pod

kubectl exec -it  seatunnel-0  -- /opt/seatunnel/bin/seatunnel.sh --config /data/seatunnel.streaming.conf

See The Output

Flink

You may follow the logs of your job, after a successful startup (which can take on the order of a minute in a fresh environment, seconds afterwards) you can:

kubectl logs -f deploy/seatunnel-flink-streaming-example

looks like the below:

...
2023-01-31 12:13:54,349 INFO  org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Source: SeaTunnel FakeSource -> Sink Writer: Console (1/1) (1665d2d011b2f6cf6525c0e5e75ec251) switched from SCHEDULED to DEPLOYING.
2023-01-31 12:13:56,684 INFO  org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Deploying Source: SeaTunnel FakeSource -> Sink Writer: Console (1/1) (attempt #0) with attempt id 1665d2d011b2f6cf6525c0e5e75ec251 to seatunnel-flink-streaming-example-taskmanager-1-1 @ 100.103.244.106 (dataPort=39137) with allocation id fbe162650c4126649afcdaff00e46875
2023-01-31 12:13:57,794 INFO  org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Source: SeaTunnel FakeSource -> Sink Writer: Console (1/1) (1665d2d011b2f6cf6525c0e5e75ec251) switched from DEPLOYING to INITIALIZING.
2023-01-31 12:13:58,203 INFO  org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Source: SeaTunnel FakeSource -> Sink Writer: Console (1/1) (1665d2d011b2f6cf6525c0e5e75ec251) switched from INITIALIZING to RUNNING.

If OOM error accur in the log, you can decrease the row.num value in seatunnel.streaming.conf

To expose the Flink Dashboard you may add a port-forward rule:

kubectl port-forward svc/seatunnel-flink-streaming-example-rest 8081

Now the Flink Dashboard is accessible at localhost:8081.

Or launch minikube dashboard for a web-based Kubernetes user interface.

The content printed in the TaskManager Stdout log:

kubectl logs \
-l 'app in (seatunnel-flink-streaming-example), component in (taskmanager)' \
--tail=-1 \
-f

looks like the below (your content may be different since we use FakeSource to automatically generate random stream data):

...
subtaskIndex=0: row=159991 : VVgpp, 978840000
subtaskIndex=0: row=159992 : JxrOC, 1493825495
subtaskIndex=0: row=159993 : YmCZR, 654146216
subtaskIndex=0: row=159994 : LdmUn, 643140261
subtaskIndex=0: row=159995 : tURkE, 837012821
subtaskIndex=0: row=159996 : uPDfd, 2021489045
subtaskIndex=0: row=159997 : mjrdG, 2074957853
subtaskIndex=0: row=159998 : xbeUi, 864518418
subtaskIndex=0: row=159999 : sSWLb, 1924451911
subtaskIndex=0: row=160000 : AuPlM, 1255017876

To stop your job and delete your FlinkDeployment you can simply:

kubectl delete -f seatunnel-flink.yaml

Spark

You may follow the logs of your job, after a successful startup (which can take on the order of a minute in a fresh environment, seconds afterwards) you can:

kubectl logs -f seatunnel-spark-example-driver

looks like the below:

...
23/11/13 04:52:45 INFO SparkContext: Running Spark version 3.3.3
23/11/13 04:52:45 INFO ResourceUtils: ==============================================================
23/11/13 04:52:45 INFO ResourceUtils: No custom resources configured for spark.driver.
23/11/13 04:52:45 INFO ResourceUtils: ==============================================================
23/11/13 04:52:45 INFO SparkContext: Submitted application: SeaTunnel
23/11/13 04:52:45 INFO ResourceProfile: Default ResourceProfile created, executor resources: Map(cores -> name: cores, amount: 1, script: , vendor: , memory -> name: memory, amount: 1024, script: , vendor: , offHeap -> name: offHeap, amount: 0, script: , vendor: ), task resources: Map(cpus -> name: cpus, amount: 1.0)
23/11/13 04:52:45 INFO ResourceProfile: Limiting resource is cpus at 1 tasks per executor
23/11/13 04:52:45 INFO ResourceProfileManager: Added ResourceProfile id: 0

To expose the Spark UI you may add a port-forward rule:

kubectl port-forward svc/seatunnel-spark-example-ui-svc 4040

Now the Spark UI is accessible at localhost:4040.

To stop your job and delete your Spark application you can simply:

kubectl delete -f seatunnel-spark.yaml

Zeta (local-mode)

You may follow the logs of your job, after a successful startup (which can take on the order of a minute in a fresh environment, seconds afterwards) you can:

kubectl logs -f seatunnel

looks like the below (your content may be different since we use FakeSource to automatically generate random stream data):

...
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25673:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : hRJdE, 1295862507
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25674:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : kXlew, 935460726
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25675:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : FrNOT, 1714358118
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25676:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : kSajX, 126709414
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25677:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : YhpQv, 2020198351
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25678:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : nApin, 691339553
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25679:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : KZNNa, 1720773736
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25680:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : uCUBI, 490868386
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25681:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : oTLmO, 98770781
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25682:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : UECud, 835494636
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25683:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : XNegY, 1602828896
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25684:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : LcFBx, 1400869177
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25685:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : EqSfF, 1933614060
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25686:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : BODIs, 1839533801
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25687:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : doxcI, 970104616
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25688:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : IEVYn, 371893767
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25689:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : YXYfq, 1719257882
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25690:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : LFWEm, 725033360
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25691:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : ypUrY, 1591744616
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25692:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : rlnzJ, 412162913
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25693:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : zWKnt, 976816261
2023-10-07 08:20:12,797 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=0  rowIndex=25694:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : PXrsk, 43554541

To stop your job and delete your SeaTunnel Deployment you can simply:

kubectl delete -f seatunnel.yaml

Zeta (cluster-mode)

You may follow the logs of your job, after a successful startup (which can take on the order of a minute in a fresh environment, seconds afterwards) you can:

kubectl exec -it  seatunnel-1  -- tail -f /opt/seatunnel/logs/seatunnel-engine-server.log | grep ConsoleSinkWriter

looks like the below (your content may be different since we use FakeSource to automatically generate random stream data):

...
2023-10-10 08:05:07,283 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=7:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : IibHk, 820962465
2023-10-10 08:05:07,283 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=8:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : lmKdb, 1072498088
2023-10-10 08:05:07,283 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=9:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : iqGva, 918730371
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=10:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : JMHmq, 1130771733
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=11:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : rxoHF, 189596686
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=12:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : OSblw, 559472064
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=13:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : yTZjG, 1842482272
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=14:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : RRiMg, 1713777214
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=15:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : lRcsd, 1626041649
2023-10-10 08:05:07,284 INFO  org.apache.seatunnel.connectors.seatunnel.console.sink.ConsoleSinkWriter - subtaskIndex=1  rowIndex=16:  SeaTunnelRow#tableId= SeaTunnelRow#kind=INSERT : QrNNW, 41355294

To stop your job and delete your SeaTunnel Deployment you can simply:

kubectl delete -f  seatunnel-cluster.yaml

Happy SeaTunneling!

What's More

For now, you are already taking a quick look at SeaTunnel, you could see connector to find all source and sink SeaTunnel supported. Or see deployment if you want to submit your application in another kind of your engine cluster.