stijndehaes commented on a change in pull request #28423:
URL: https://github.com/apache/spark/pull/28423#discussion_r419230937
##########
File path:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/KubernetesClientApplication.scala
##########
@@ -127,25 +129,33 @@ private[spark] class Client(
.endSpec()
.build()
val driverPodName = resolvedDriverPod.getMetadata.getName
- Utils.tryWithResource(
- kubernetesClient
- .pods()
- .withName(driverPodName)
- .watch(watcher)) { _ =>
- val createdDriverPod = kubernetesClient.pods().create(resolvedDriverPod)
- try {
- val otherKubernetesResources =
- resolvedDriverSpec.driverKubernetesResources ++ Seq(configMap)
- addDriverOwnerReference(createdDriverPod, otherKubernetesResources)
- kubernetesClient.resourceList(otherKubernetesResources:
_*).createOrReplace()
- } catch {
- case NonFatal(e) =>
- kubernetesClient.pods().delete(createdDriverPod)
- throw e
- }
- val sId = Seq(conf.namespace, driverPodName).mkString(":")
- watcher.watchOrStop(sId)
+ var watch: Watch = null
+ val createdDriverPod = kubernetesClient.pods().create(resolvedDriverPod)
+ try {
+ val otherKubernetesResources =
resolvedDriverSpec.driverKubernetesResources ++ Seq(configMap)
+ addDriverOwnerReference(createdDriverPod, otherKubernetesResources)
+ kubernetesClient.resourceList(otherKubernetesResources:
_*).createOrReplace()
+ } catch {
+ case NonFatal(e) =>
+ kubernetesClient.pods().delete(createdDriverPod)
+ throw e
+ }
+ val sId = Seq(conf.namespace, driverPodName).mkString(":")
+ breakable {
+ while (true) {
+ try {
+ watch = kubernetesClient
+ .pods()
+ .withName(driverPodName)
+ .watch(watcher)
+ watcher.watchOrStop(sId)
Review comment:
I think you are right with the race condition, since a watch is started
with the resource version from the java k8s client, we start watching changes
from that resource version.
So we are in the case: `resourceVersion=“{value other than 0}”`
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