Hello,
im running Spark 2.3 job on kubernetes cluster
>
> kubectl version
>
> Client Version: version.Info{Major:"1", Minor:"9",
> GitVersion:"v1.9.3", GitCommit:"d2835416544f298c919e2ead3be3d0864b52323b",
> GitTreeState:"clean", BuildDate:"2018-02-09T21:51:06Z",
> GoVersion:"go1.9.4", Compiler:"gc", Platform:"darwin/amd64"}
>
> Server Version: version.Info{Major:"1", Minor:"8",
> GitVersion:"v1.8.3", GitCommit:"f0efb3cb883751c5ffdbe6d515f3cb4fbe7b7acd",
> GitTreeState:"clean", BuildDate:"2017-11-08T18:27:48Z",
> GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"}
>
>
>
> when i ran spark submit on k8s master the driver pod is stuck in Waiting:
> PodInitializing state.
> I had to manually kill the driver pod and submit new job in this case
> ,then it works.How this can be handled in production ?
>
https://issues.apache.org/jira/plugins/servlet/mobile#issue/SPARK-25128
>
> This is happening if i submit the jobs almost parallel ie submit 5 jobs
> one after the other simultaneously.
>
> I'm running spark jobs on 20 nodes each having below configuration
>
> I tried kubectl describe node on the node where trhe driver pod is running
> this is what i got ,i do see there is overcommit on resources but i
> expected kubernetes scheduler not to schedule if resources in node are
> overcommitted or node is in Not Ready state ,in this case node is in Ready
> State but i observe same behaviour if node is in "Not Ready" state
>
>
>
> Name: **********
>
> Roles: worker
>
> Labels: beta.kubernetes.io/arch=amd64
>
> beta.kubernetes.io/os=linux
>
> kubernetes.io/hostname=****
>
> node-role.kubernetes.io/worker=true
>
> Annotations: node.alpha.kubernetes.io/ttl=0
>
>
> volumes.kubernetes.io/controller-managed-attach-detach=true
>
> Taints: <none>
>
> CreationTimestamp: Tue, 31 Jul 2018 09:59:24 -0400
>
> Conditions:
>
> Type Status LastHeartbeatTime
> LastTransitionTime Reason Message
>
> ---- ------ -----------------
> ------------------ ------ -------
>
> OutOfDisk False Tue, 14 Aug 2018 09:31:20 -0400 Tue, 31
> Jul 2018 09:59:24 -0400 KubeletHasSufficientDisk kubelet has
> sufficient disk space available
>
> MemoryPressure False Tue, 14 Aug 2018 09:31:20 -0400 Tue, 31
> Jul 2018 09:59:24 -0400 KubeletHasSufficientMemory kubelet has
> sufficient memory available
>
> DiskPressure False Tue, 14 Aug 2018 09:31:20 -0400 Tue, 31
> Jul 2018 09:59:24 -0400 KubeletHasNoDiskPressure kubelet has no disk
> pressure
>
> Ready True Tue, 14 Aug 2018 09:31:20 -0400 Sat, 11
> Aug 2018 00:41:27 -0400 KubeletReady kubelet is posting
> ready status. AppArmor enabled
>
> Addresses:
>
> InternalIP: *****
>
> Hostname: ******
>
> Capacity:
>
> cpu: 16
>
> memory: 125827288Ki
>
> pods: 110
>
> Allocatable:
>
> cpu: 16
>
> memory: 125724888Ki
>
> pods: 110
>
> System Info:
>
> Machine ID: *************
>
> System UUID: **************
>
> Boot ID: 1493028d-0a80-4f2f-b0f1-48d9b8910e9f
>
> Kernel Version: 4.4.0-1062-aws
>
> OS Image: Ubuntu 16.04.4 LTS
>
> Operating System: linux
>
> Architecture: amd64
>
> Container Runtime Version: docker://Unknown
>
> Kubelet Version: v1.8.3
>
> Kube-Proxy Version: v1.8.3
>
> PodCIDR: ******
>
> ExternalID: **************
>
> Non-terminated Pods: (11 in total)
>
> Namespace Name
> CPU Requests CPU Limits Memory Requests Memory
> Limits
>
> --------- ----
> ------------ ---------- ---------------
> -------------
>
> kube-system calico-node-gj5mb
> 250m (1%) 0 (0%) 0 (0%) 0 (0%)
>
> kube-system
> kube-proxy-**************************************** 100m (0%)
> 0 (0%) 0 (0%) 0 (0%)
>
> kube-system prometheus-prometheus-node-exporter-9cntq
> 100m (0%) 200m (1%) 30Mi (0%) 50Mi (0%)
>
> logging
> elasticsearch-elasticsearch-data-69df997486-gqcwg 400m (2%)
> 1 (6%) 8Gi (6%) 16Gi (13%)
>
> logging fluentd-fluentd-elasticsearch-tj7nd
> 200m (1%) 0 (0%) 612Mi (0%) 0 (0%)
>
> rook rook-agent-6jtzm
> 0 (0%) 0 (0%) 0 (0%) 0 (0%)
>
> rook
> rook-ceph-osd-10-6-42-250.accel.aws-cardda.cb4good.com-gwb8j 0 (0%)
> 0 (0%) 0 (0%) 0 (0%)
>
> spark
> accelerate-test-5-a3bfb8a597e83d459193a183e17f13b5-exec-1 2 (12%)
> 0 (0%) 10Gi (8%) 12Gi (10%)
>
> spark
> accelerate-testing-1-8ed0482f3bfb3c0a83da30bb7d433dff-exec-5 2 (12%)
> 0 (0%) 10Gi (8%) 12Gi (10%)
>
> spark
> accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba-driver 1 (6%)
> 0 (0%) 2Gi (1%) 2432Mi (1%)
>
> spark
> accelerate-testing-2-e8bd0607cc693bc8ae25cc6dc300b2c7-driver 1 (6%)
> 0 (0%) 2Gi (1%) 2432Mi (1%)
>
> Allocated resources:
>
> (Total limits may be over 100 percent, i.e., overcommitted.)
>
> CPU Requests CPU Limits Memory Requests Memory Limits
>
> ------------ ---------- --------------- -------------
>
> 7050m (44%) 1200m (7%) 33410Mi (27%) 45874Mi (37%)
>
>
> Events: <none>
>
>
> Kubectl describe pod gives below message
>
> Name:
> accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba-driver
> Namespace: spark
> Node: ****
> Start Time: Mon, 13 Aug 2018 16:18:34 -0400
> Labels:
> launch-id=k8s-submit-service-cddf45ff-0d88-4681-af85-d8ed0359ce73
> spark-app-selector=spark-63f536fd87f8457796802767922ef7d9
> spark-role=driver
> Annotations: spark-app-name=accelerate-testing-2
> Status: Pending
> IP:
> Init Containers:
> spark-init:
> Container ID:
> Image: ****:v2.3.0
> Image ID:
> Port: <none>
> Args:
> init
> /etc/spark-init/spark-init.properties
> State: Waiting
> Reason: PodInitializing
> Ready: False
> Restart Count: 0
> Environment: <none>
> Mounts:
> /etc/spark-init from spark-init-properties (rw)
> /var/run/secrets/kubernetes.io/serviceaccount from
> spark-token-mj86g (ro)
> /var/spark-data/spark-files from download-files-volume (rw)
> /var/spark-data/spark-jars from download-jars-volume (rw)
> Containers:
> spark-kubernetes-driver:
> Container ID:
> Image: ******:v2.3.0
> Image ID:
> Port: <none>
> Args:
> driver
> State: Waiting
> Reason: PodInitializing
> Ready: False
> Restart Count: 0
> Limits:
> memory: 2432Mi
> Requests:
> cpu: 1
> memory: 2Gi
> Environment:
> SPARK_DRIVER_MEMORY: 2g
> SPARK_DRIVER_CLASS: com.myclass
> SPARK_DRIVER_BIND_ADDRESS: (v1:status.podIP)
> SPARK_MOUNTED_CLASSPATH:
>
> /var/spark-data/spark-jars/quantum-workflow-2.2.24.0-SNAPSHOT-assembly.jar:/var/spark-data/spark-jars/my.jar
> SPARK_MOUNTED_FILES_DIR: /var/spark-data/spark-files
> SPARK_JAVA_OPT_0:
> -Dspark.kubernetes.container.image=***
> SPARK_JAVA_OPT_1:
> -Dspark.jars=s3a://my/my.jar,s3a://my/my1.jar
> SPARK_JAVA_OPT_2: -Dspark.submit.deployMode=cluster
> SPARK_JAVA_OPT_3: -Dspark.driver.blockManager.port=7079
> SPARK_JAVA_OPT_4: -Dspark.executor.memory=10g
> SPARK_JAVA_OPT_5: -Dspark.app.id
> =spark-63f536fd87f8457796802767922ef7d9
> SPARK_JAVA_OPT_6:
> -Dspark.kubernetes.authenticate.driver.serviceAccountName=spark
> SPARK_JAVA_OPT_7: -Dspark.master=k8s://
> https://kubernetes.default
> SPARK_JAVA_OPT_8:
> -Dspark.driver.host=spark-1534191513364-driver-svc.spark.svc
> SPARK_JAVA_OPT_9: -Dspark.executor.cores=2
> SPARK_JAVA_OPT_10:
>
> -Dspark.kubernetes.executor.podNamePrefix=accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba
> SPARK_JAVA_OPT_11: -Dspark.driver.port=7078
> SPARK_JAVA_OPT_12: -Dspark.kubernetes.namespace=spark
> SPARK_JAVA_OPT_13: -Dspark.executor.memoryOverhead=2g
> SPARK_JAVA_OPT_14:
>
> -Dspark.kubernetes.initContainer.configMapName=accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba-init-config
> SPARK_JAVA_OPT_15:
> -Dspark.kubernetes.initContainer.configMapKey=spark-init.properties
> SPARK_JAVA_OPT_16: -Dspark.executor.instances=10
> SPARK_JAVA_OPT_17: -Dspark.memory.fraction=0.6
> SPARK_JAVA_OPT_18: -Dspark.driver.memory=2g
> SPARK_JAVA_OPT_19: -Dspark.kubernetes.driver.pod.name
> =accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba-driver
> SPARK_JAVA_OPT_20: -Dspark.app.name
> =accelerate-testing-2
> SPARK_JAVA_OPT_21:
> -Dspark.kubernetes.driver.label.launch-id=********
> Mounts:
> /var/run/secrets/kubernetes.io/serviceaccount from
> spark-token-mj86g (ro)
> /var/spark-data/spark-files from download-files-volume (rw)
> /var/spark-data/spark-jars from download-jars-volume (rw)
> Conditions:
> Type Status
> Initialized False
> Ready False
> PodScheduled True
> Volumes:
> spark-init-properties:
> Type: ConfigMap (a volume populated by a ConfigMap)
> Name:
> accelerate-testing-2-8cecc18bb42f31a386c6304bd63e9eba-init-config
> Optional: false
> download-jars-volume:
> Type: EmptyDir (a temporary directory that shares a pod's
> lifetime)
> Medium:
> download-files-volume:
> Type: EmptyDir (a temporary directory that shares a pod's
> lifetime)
> Medium:
> spark-token-mj86g:
> Type: Secret (a volume populated by a Secret)
> SecretName: spark-token-mj86g
> Optional: false
> QoS Class: Burstable
> Node-Selectors: <none>
> Tolerations: <none>
> Events:
> Type Reason Age From
> Message
> ---- ------ ---- ----
> -------
> Normal SandboxChanged 44m (x518 over 18h) kubelet,
> **************************** Pod sandbox changed, it will be killed and
> re-created.
> Warning FailedSync 19s (x540 over 18h) kubelet,
> **************************** Error syncing pod
>
>
