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https://issues.apache.org/jira/browse/SPARK-33349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17403987#comment-17403987
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Mihir Kelkar commented on SPARK-33349:
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[~dongjoon], [~code_kr_dev_s] : is there an expected patch to fix this issue
for any upcoming release?
> ExecutorPodsWatchSnapshotSource: Kubernetes client has been closed
> ------------------------------------------------------------------
>
> Key: SPARK-33349
> URL: https://issues.apache.org/jira/browse/SPARK-33349
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 3.0.1, 3.0.2, 3.1.0
> Reporter: Nicola Bova
> Priority: Critical
>
> I launch my spark application with the
> [spark-on-kubernetes-operator|https://github.com/GoogleCloudPlatform/spark-on-k8s-operator]
> with the following yaml file:
> {code:yaml}
> apiVersion: sparkoperator.k8s.io/v1beta2
> kind: SparkApplication
> metadata:
> name: spark-kafka-streamer-test
> namespace: kafka2hdfs
> spec:
> type: Scala
> mode: cluster
> image: <my-repo>/spark:3.0.2-SNAPSHOT-2.12-0.1.0
> imagePullPolicy: Always
> timeToLiveSeconds: 259200
> mainClass: path.to.my.class.KafkaStreamer
> mainApplicationFile: spark-kafka-streamer_2.12-spark300-assembly.jar
> sparkVersion: 3.0.1
> restartPolicy:
> type: Always
> sparkConf:
> "spark.kafka.consumer.cache.capacity": "8192"
> "spark.kubernetes.memoryOverheadFactor": "0.3"
> deps:
> jars:
> - my
> - jar
> - list
> hadoopConfigMap: hdfs-config
> driver:
> cores: 4
> memory: 12g
> labels:
> version: 3.0.1
> serviceAccount: default
> javaOptions:
> "-Dlog4j.configuration=file:///opt/spark/log4j/log4j.properties"
> executor:
> instances: 4
> cores: 4
> memory: 16g
> labels:
> version: 3.0.1
> javaOptions:
> "-Dlog4j.configuration=file:///opt/spark/log4j/log4j.properties"
> {code}
> I have tried with both Spark `3.0.1` and `3.0.2-SNAPSHOT` with the ["Restart
> the watcher when we receive a version changed from
> k8s"|https://github.com/apache/spark/pull/29533] patch.
> This is the driver log:
> {code}
> 20/11/04 12:16:02 WARN NativeCodeLoader: Unable to load native-hadoop library
> for your platform... using builtin-java classes where applicable
> ... // my app log, it's a structured streaming app reading from kafka and
> writing to hdfs
> 20/11/04 13:12:12 WARN ExecutorPodsWatchSnapshotSource: Kubernetes client has
> been closed (this is expected if the application is shutting down.)
> io.fabric8.kubernetes.client.KubernetesClientException: too old resource
> version: 1574101276 (1574213896)
> at
> io.fabric8.kubernetes.client.dsl.internal.WatchConnectionManager$1.onMessage(WatchConnectionManager.java:259)
> at okhttp3.internal.ws.RealWebSocket.onReadMessage(RealWebSocket.java:323)
> at
> okhttp3.internal.ws.WebSocketReader.readMessageFrame(WebSocketReader.java:219)
> at
> okhttp3.internal.ws.WebSocketReader.processNextFrame(WebSocketReader.java:105)
> at okhttp3.internal.ws.RealWebSocket.loopReader(RealWebSocket.java:274)
> at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:214)
> at okhttp3.RealCall$AsyncCall.execute(RealCall.java:203)
> at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
> Source)
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
> Source)
> at java.base/java.lang.Thread.run(Unknown Source)
> {code}
> The error above appears after roughly 50 minutes.
> After the exception above, no more logs are produced and the app hangs.
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