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.
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
