Hi,
I would like to use native kubernetes execution [1] for one batch job and
let scheduling on kubernetes. Flink version: 1.12.2.
Kubernetes job:
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: scheduled-job
spec:
schedule: "*/1 * * * *"
jobTemplate:
spec:
template:
metadata:
labels:
app: super-flink-batch-job
spec:
containers:
- name: runner
image: localhost:5000/batch-flink-app-v3:latest
imagePullPolicy: Always
command:
- /bin/sh
- -c
- /opt/flink/bin/flink run-application --target
kubernetes-application -Dkubernetes.service-account=flink-service-account
-Dkubernetes.rest-service.exposed.type=NodePort
-Dkubernetes.cluster-id=batch-job-cluster
-Dkubernetes.container.image=localhost:5000/batch-flink-app-v3:latest
-Ds3.endpoint=http://minio-1616518256:9000 -Ds3.access-key=ACCESSKEY
-Ds3.secret-key=SECRETKEY
-Djobmanager.archive.fs.dir=s3://flink/completed-jobs/
-Ds3.path-style-access=true -Ds3.ssl.enabled=false
-Dhigh-availability=org.apache.flink.kubernetes.highavailability.KubernetesHaServicesFactory
-Dhigh-availability.storageDir=s3://flink/flink-ha
local:///opt/flink/usrlib/job.jar
restartPolicy: OnFailure
This works well for me but I would like to write the result to the archive
path and show it in the History server (running as separate deployment in
k8)
Anytime it creates JobId=00000000000000000000000000000000 which obviously
leads to
Caused by: java.util.concurrent.ExecutionException:
org.apache.flink.runtime.client.DuplicateJobSubmissionException: Job has
already been submitted.
at
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
~[?:1.8.0_282]
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
~[?:1.8.0_282]
at
org.apache.flink.api.java.ExecutionEnvironment.executeAsync(ExecutionEnvironment.java:1056)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.client.program.ContextEnvironment.executeAsync(ContextEnvironment.java:129)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:70)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:942)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.api.java.DataSet.collect(DataSet.java:417)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.api.java.DataSet.print(DataSet.java:1748)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.examples.java.wordcount.WordCount.main(WordCount.java:96)
~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:1.8.0_282]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:1.8.0_282]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_282]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_282]
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:349)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:219)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.client.deployment.application.ApplicationDispatcherBootstrap.runApplicationEntryPoint(ApplicationDispatcherBootstrap.java:242)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
... 10 more
I assume it is because it will spawn a completely new cluster for each run.
Can I somehow set jobId or I'm trying to do something unsupported/bad?
Thanks for advice.
L.
[1]
https://ci.apache.org/projects/flink/flink-docs-stable/deployment/resource-providers/native_kubernetes.html
