Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[SPARK-32975][K8S] Add config for driver readiness timeout before executors start #32752

Closed
wants to merge 6 commits into from
Closed

[SPARK-32975][K8S] Add config for driver readiness timeout before executors start #32752

Show file tree
Hide file tree
Changes from 3 commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
1e4ad67
Ensure driver is ready before executors start
cchriswu Jun 2, 2021
66981fe
Move the wait for driver readiness
cchriswu Jun 2, 2021
02cf0f3
Improve comment and code style
cchriswu Jun 3, 2021
9fafec3
Add config for the timeout
Jun 4, 2021
20509d1
Fix lint issue
cchriswu Jun 4, 2021
4dbae0a
Update config version to 3.1.3
cchriswu Jun 4, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 14 additions & 0 deletions ...es/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/ExecutorPodsAllocator.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ package org.apache.spark.scheduler.cluster.k8s

import java.time.Instant
import java.util.concurrent.ConcurrentHashMap
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.{AtomicInteger, AtomicLong}

import scala.collection.JavaConverters._
Expand Down Expand Up @@ -61,6 +62,8 @@ private[spark] class ExecutorPodsAllocator(
podAllocationDelay * 5,
conf.get(KUBERNETES_ALLOCATION_EXECUTOR_TIMEOUT))

private val driverPodReadinessTimeout = 5
dongjoon-hyun marked this conversation as resolved.
Show resolved Hide resolved

private val executorIdleTimeout = conf.get(DYN_ALLOCATION_EXECUTOR_IDLE_TIMEOUT) * 1000

private val namespace = conf.get(KUBERNETES_NAMESPACE)
Expand Down Expand Up @@ -99,6 +102,17 @@ private[spark] class ExecutorPodsAllocator(
@volatile private var deletedExecutorIds = Set.empty[Long]

def start(applicationId: String, schedulerBackend: KubernetesClusterSchedulerBackend): Unit = {
// Wait until the driver pod is ready before starting executors, as the headless service won't
// be resolvable by DNS until the driver pod is ready.
try {
kubernetesClient.pods()
.withName(kubernetesDriverPodName.get)
.waitUntilReady(driverPodReadinessTimeout, TimeUnit.MINUTES)
} catch {
case e: InterruptedException =>
logWarning(s"Timeout waiting for driver pod ${kubernetesDriverPodName.get} get ready in " +
s"namespace $namespace")
}
dongjoon-hyun marked this conversation as resolved.
Show resolved Hide resolved
snapshotsStore.addSubscriber(podAllocationDelay) {
onNewSnapshots(applicationId, schedulerBackend, _)
}
Expand Down
1 change: 1 addition & 0 deletions ...re/src/test/scala/org/apache/spark/scheduler/cluster/k8s/ExecutorPodsAllocatorSuite.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,7 @@ class ExecutorPodsAllocatorSuite extends SparkFunSuite with BeforeAndAfter {
when(kubernetesClient.pods()).thenReturn(podOperations)
when(podOperations.withName(driverPodName)).thenReturn(driverPodOperations)
when(driverPodOperations.get).thenReturn(driverPod)
when(driverPodOperations.waitUntilReady(any(), any())).thenReturn(driverPod)
when(executorBuilder.buildFromFeatures(any(classOf[KubernetesExecutorConf]), meq(secMgr),
meq(kubernetesClient), any(classOf[ResourceProfile]))).thenAnswer(executorPodAnswer())
snapshotsStore = new DeterministicExecutorPodsSnapshotsStore()
Expand Down