xkrogen commented on a change in pull request #29906:
URL: https://github.com/apache/spark/pull/29906#discussion_r499077732
##########
File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
##########
@@ -722,74 +722,83 @@ package object config {
.booleanConf
.createWithDefault(true)
- // Blacklist confs
- private[spark] val BLACKLIST_ENABLED =
- ConfigBuilder("spark.blacklist.enabled")
+ private[spark] val EXCLUDE_ON_FAILURE_ENABLED =
+ ConfigBuilder("spark.excludeOnFailure.enabled")
.version("2.1.0")
Review comment:
Do we need to update the "from" version strings here?
##########
File path:
core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala
##########
@@ -907,13 +908,13 @@ class CoarseGrainedSchedulerBackend(scheduler:
TaskSchedulerImpl, val rpcEnv: Rp
protected def currentDelegationTokens: Array[Byte] = delegationTokens.get()
/**
- * Checks whether the executor is blacklisted. This is called when the
executor tries to
- * register with the scheduler, and will deny registration if this method
returns true.
+ * Checks whether the executor is excluded due to failure(s). This is called
when the executor
+ * tries to register with the scheduler, and will deny registration if this
method returns true.
Review comment:
minor nit: extra space at the start of the line
##########
File path: core/src/main/scala/org/apache/spark/status/api/v1/api.scala
##########
@@ -82,10 +82,11 @@ class ExecutorStageSummary private[spark](
val shuffleWriteRecords : Long,
val memoryBytesSpilled : Long,
val diskBytesSpilled : Long,
- val isBlacklistedForStage: Boolean,
+ val isBlacklistedForStage: Boolean, // deprecated
Review comment:
Can we `@deprecated` for this and others?
##########
File path: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala
##########
@@ -284,80 +284,138 @@ private[spark] class AppStatusListener(
}
override def onExecutorBlacklisted(event: SparkListenerExecutorBlacklisted):
Unit = {
- updateBlackListStatus(event.executorId, true)
+ updateExcludedStatus(event.executorId, true)
+ }
+
+ override def onExecutorExcluded(event: SparkListenerExecutorExcluded): Unit
= {
+ updateExcludedStatus(event.executorId, true)
}
override def onExecutorBlacklistedForStage(
- event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ val now = System.nanoTime()
+
+ Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
+ setStageExcludedStatus(stage, now, event.executorId)
+ }
+ liveExecutors.get(event.executorId).foreach { exec =>
+ addExcludedStageTo(exec, event.stageId, now)
+ }
+ }
+
+ override def onExecutorExcludedForStage(
+ event: SparkListenerExecutorExcludedForStage): Unit = {
val now = System.nanoTime()
Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
- setStageBlackListStatus(stage, now, event.executorId)
+ setStageExcludedStatus(stage, now, event.executorId)
}
liveExecutors.get(event.executorId).foreach { exec =>
- addBlackListedStageTo(exec, event.stageId, now)
+ addExcludedStageTo(exec, event.stageId, now)
}
}
override def onNodeBlacklistedForStage(event:
SparkListenerNodeBlacklistedForStage): Unit = {
val now = System.nanoTime()
- // Implicitly blacklist every available executor for the stage associated
with this node
+ // Implicitly exclude every available executor for the stage associated
with this node
Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
val executorIds = liveExecutors.values.filter(_.host ==
event.hostId).map(_.executorId).toSeq
- setStageBlackListStatus(stage, now, executorIds: _*)
+ setStageExcludedStatus(stage, now, executorIds: _*)
}
liveExecutors.values.filter(_.hostname == event.hostId).foreach { exec =>
- addBlackListedStageTo(exec, event.stageId, now)
+ addExcludedStageTo(exec, event.stageId, now)
+ }
+ }
+
+ override def onNodeExcludedForStage(event:
SparkListenerNodeExcludedForStage): Unit = {
+ val now = System.nanoTime()
+
+ // Implicitly exclude every available executor for the stage associated
with this node
+ Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
+ val executorIds = liveExecutors.values.filter(_.host ==
event.hostId).map(_.executorId).toSeq
+ setStageExcludedStatus(stage, now, executorIds: _*)
+ }
+ liveExecutors.values.filter(_.hostname == event.hostId).foreach { exec =>
+ addExcludedStageTo(exec, event.stageId, now)
}
}
private def addBlackListedStageTo(exec: LiveExecutor, stageId: Int, now:
Long): Unit = {
- exec.blacklistedInStages += stageId
+ exec.excludedInStages += stageId
+ liveUpdate(exec, now)
+ }
+
+ private def addExcludedStageTo(exec: LiveExecutor, stageId: Int, now: Long):
Unit = {
+ exec.excludedInStages += stageId
liveUpdate(exec, now)
}
private def setStageBlackListStatus(stage: LiveStage, now: Long,
executorIds: String*): Unit = {
executorIds.foreach { executorId =>
val executorStageSummary = stage.executorSummary(executorId)
- executorStageSummary.isBlacklisted = true
+ executorStageSummary.isExcluded = true
maybeUpdate(executorStageSummary, now)
}
- stage.blackListedExecutors ++= executorIds
+ stage.excludedExecutors ++= executorIds
+ maybeUpdate(stage, now)
+ }
+
+ private def setStageExcludedStatus(stage: LiveStage, now: Long, executorIds:
String*): Unit = {
+ executorIds.foreach { executorId =>
+ val executorStageSummary = stage.executorSummary(executorId)
+ executorStageSummary.isExcluded = true
+ maybeUpdate(executorStageSummary, now)
+ }
+ stage.excludedExecutors ++= executorIds
maybeUpdate(stage, now)
}
override def onExecutorUnblacklisted(event:
SparkListenerExecutorUnblacklisted): Unit = {
- updateBlackListStatus(event.executorId, false)
+ updateExcludedStatus(event.executorId, false)
+ }
+
+ override def onExecutorUnexcluded(event: SparkListenerExecutorUnexcluded):
Unit = {
+ updateExcludedStatus(event.executorId, false)
}
override def onNodeBlacklisted(event: SparkListenerNodeBlacklisted): Unit = {
- updateNodeBlackList(event.hostId, true)
+ updateNodeExcluded(event.hostId, true)
+ }
+
+ override def onNodeExcluded(event: SparkListenerNodeExcluded): Unit = {
+ updateNodeExcluded(event.hostId, true)
}
override def onNodeUnblacklisted(event: SparkListenerNodeUnblacklisted):
Unit = {
- updateNodeBlackList(event.hostId, false)
+ updateNodeExcluded(event.hostId, false)
+ }
+
+ override def onNodeUnexcluded(event: SparkListenerNodeUnexcluded): Unit = {
+ updateNodeExcluded(event.hostId, false)
}
- private def updateBlackListStatus(execId: String, blacklisted: Boolean):
Unit = {
+ private def updateExcludedStatus(execId: String, excluded: Boolean): Unit = {
Review comment:
Is `updateExclusionStatus` a better name? It reads more smoothly to me,
but I'm not sure if it's less clear.
##########
File path: docs/monitoring.md
##########
@@ -1125,12 +1125,14 @@ This is the component with the largest amount of
instrumented metrics
- stages.failedStages.count
- stages.skippedStages.count
- stages.completedStages.count
- - tasks.blackListedExecutors.count
+ - tasks.blackListedExecutors.count // deprecated use excludedExecutors
instead
Review comment:
Is it even worth mentioning in the documentation?
##########
File path: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala
##########
@@ -284,80 +284,138 @@ private[spark] class AppStatusListener(
}
override def onExecutorBlacklisted(event: SparkListenerExecutorBlacklisted):
Unit = {
- updateBlackListStatus(event.executorId, true)
+ updateExcludedStatus(event.executorId, true)
+ }
+
+ override def onExecutorExcluded(event: SparkListenerExecutorExcluded): Unit
= {
+ updateExcludedStatus(event.executorId, true)
}
override def onExecutorBlacklistedForStage(
- event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ val now = System.nanoTime()
+
+ Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
+ setStageExcludedStatus(stage, now, event.executorId)
+ }
+ liveExecutors.get(event.executorId).foreach { exec =>
+ addExcludedStageTo(exec, event.stageId, now)
+ }
+ }
+
+ override def onExecutorExcludedForStage(
+ event: SparkListenerExecutorExcludedForStage): Unit = {
val now = System.nanoTime()
Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
- setStageBlackListStatus(stage, now, event.executorId)
+ setStageExcludedStatus(stage, now, event.executorId)
}
liveExecutors.get(event.executorId).foreach { exec =>
- addBlackListedStageTo(exec, event.stageId, now)
+ addExcludedStageTo(exec, event.stageId, now)
}
}
override def onNodeBlacklistedForStage(event:
SparkListenerNodeBlacklistedForStage): Unit = {
val now = System.nanoTime()
- // Implicitly blacklist every available executor for the stage associated
with this node
+ // Implicitly exclude every available executor for the stage associated
with this node
Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
val executorIds = liveExecutors.values.filter(_.host ==
event.hostId).map(_.executorId).toSeq
- setStageBlackListStatus(stage, now, executorIds: _*)
+ setStageExcludedStatus(stage, now, executorIds: _*)
}
liveExecutors.values.filter(_.hostname == event.hostId).foreach { exec =>
- addBlackListedStageTo(exec, event.stageId, now)
+ addExcludedStageTo(exec, event.stageId, now)
+ }
+ }
+
+ override def onNodeExcludedForStage(event:
SparkListenerNodeExcludedForStage): Unit = {
+ val now = System.nanoTime()
+
+ // Implicitly exclude every available executor for the stage associated
with this node
+ Option(liveStages.get((event.stageId, event.stageAttemptId))).foreach {
stage =>
+ val executorIds = liveExecutors.values.filter(_.host ==
event.hostId).map(_.executorId).toSeq
+ setStageExcludedStatus(stage, now, executorIds: _*)
+ }
+ liveExecutors.values.filter(_.hostname == event.hostId).foreach { exec =>
+ addExcludedStageTo(exec, event.stageId, now)
}
}
private def addBlackListedStageTo(exec: LiveExecutor, stageId: Int, now:
Long): Unit = {
- exec.blacklistedInStages += stageId
+ exec.excludedInStages += stageId
+ liveUpdate(exec, now)
+ }
+
+ private def addExcludedStageTo(exec: LiveExecutor, stageId: Int, now: Long):
Unit = {
+ exec.excludedInStages += stageId
liveUpdate(exec, now)
}
private def setStageBlackListStatus(stage: LiveStage, now: Long,
executorIds: String*): Unit = {
executorIds.foreach { executorId =>
val executorStageSummary = stage.executorSummary(executorId)
- executorStageSummary.isBlacklisted = true
+ executorStageSummary.isExcluded = true
maybeUpdate(executorStageSummary, now)
}
- stage.blackListedExecutors ++= executorIds
+ stage.excludedExecutors ++= executorIds
+ maybeUpdate(stage, now)
+ }
+
+ private def setStageExcludedStatus(stage: LiveStage, now: Long, executorIds:
String*): Unit = {
Review comment:
Is `setStageExclusionStatus` a better name? It reads more smoothly to
me, but I'm not sure if it's less clear.
##########
File path:
core/src/main/scala/org/apache/spark/scheduler/TaskSchedulerImpl.scala
##########
@@ -638,18 +638,19 @@ private[spark] class TaskSchedulerImpl(
}
} else {
// Abort Immediately
- logInfo("Cannot schedule any task because of complete
blacklisting. No idle" +
- s" executors can be found to kill. Aborting stage
${taskSet.stageId}.")
- taskSet.abortSinceCompletelyBlacklisted(taskIndex)
+ logInfo("Cannot schedule any task because all executor
excluded from " +
Review comment:
minor nit: `all executor excluded` -> `all executors excluded`
##########
File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
##########
@@ -722,74 +722,83 @@ package object config {
.booleanConf
.createWithDefault(true)
- // Blacklist confs
- private[spark] val BLACKLIST_ENABLED =
- ConfigBuilder("spark.blacklist.enabled")
+ private[spark] val EXCLUDE_ON_FAILURE_ENABLED =
+ ConfigBuilder("spark.excludeOnFailure.enabled")
.version("2.1.0")
+ .withAlternative("spark.blacklist.enabled")
.booleanConf
.createOptional
private[spark] val MAX_TASK_ATTEMPTS_PER_EXECUTOR =
- ConfigBuilder("spark.blacklist.task.maxTaskAttemptsPerExecutor")
+ ConfigBuilder("spark.excludeOnFailure.task.maxTaskAttemptsPerExecutor")
.version("2.1.0")
+ .withAlternative("spark.blacklist.task.maxTaskAttemptsPerExecutor")
.intConf
.createWithDefault(1)
private[spark] val MAX_TASK_ATTEMPTS_PER_NODE =
- ConfigBuilder("spark.blacklist.task.maxTaskAttemptsPerNode")
+ ConfigBuilder("spark.excludeOnFailure.task.maxTaskAttemptsPerNode")
.version("2.1.0")
+ .withAlternative("spark.blacklist.task.maxTaskAttemptsPerNode")
.intConf
.createWithDefault(2)
private[spark] val MAX_FAILURES_PER_EXEC =
- ConfigBuilder("spark.blacklist.application.maxFailedTasksPerExecutor")
+
ConfigBuilder("spark.excludeOnFailure.application.maxFailedTasksPerExecutor")
.version("2.2.0")
+ .withAlternative("spark.blacklist.application.maxFailedTasksPerExecutor")
.intConf
.createWithDefault(2)
private[spark] val MAX_FAILURES_PER_EXEC_STAGE =
- ConfigBuilder("spark.blacklist.stage.maxFailedTasksPerExecutor")
+ ConfigBuilder("spark.excludeOnFailure.stage.maxFailedTasksPerExecutor")
.version("2.1.0")
+ .withAlternative("spark.blacklist.stage.maxFailedTasksPerExecutor")
.intConf
.createWithDefault(2)
private[spark] val MAX_FAILED_EXEC_PER_NODE =
- ConfigBuilder("spark.blacklist.application.maxFailedExecutorsPerNode")
+
ConfigBuilder("spark.excludeOnFailure.application.maxFailedExecutorsPerNode")
.version("2.2.0")
+ .withAlternative("spark.blacklist.application.maxFailedExecutorsPerNode")
.intConf
.createWithDefault(2)
private[spark] val MAX_FAILED_EXEC_PER_NODE_STAGE =
- ConfigBuilder("spark.blacklist.stage.maxFailedExecutorsPerNode")
+ ConfigBuilder("spark.excludeOnFailure.stage.maxFailedExecutorsPerNode")
.version("2.1.0")
+ .withAlternative("spark.blacklist.stage.maxFailedExecutorsPerNode")
.intConf
.createWithDefault(2)
- private[spark] val BLACKLIST_TIMEOUT_CONF =
- ConfigBuilder("spark.blacklist.timeout")
+ private[spark] val EXCLUDE_ON_FAILURE_TIMEOUT_CONF =
+ ConfigBuilder("spark.excludeOnFailure.timeout")
.version("2.1.0")
+ .withAlternative("spark.blacklist.timeout")
.timeConf(TimeUnit.MILLISECONDS)
.createOptional
- private[spark] val BLACKLIST_KILL_ENABLED =
- ConfigBuilder("spark.blacklist.killBlacklistedExecutors")
+ private[spark] val EXCLUDE_ON_FAILURE_KILL_ENABLED =
+ ConfigBuilder("spark.excludeOnFailure.killExcludedExecutors")
.version("2.2.0")
+ .withAlternative("spark.excludeOnFailure.timeout")
.booleanConf
.createWithDefault(false)
- private[spark] val BLACKLIST_LEGACY_TIMEOUT_CONF =
- ConfigBuilder("spark.scheduler.executorTaskBlacklistTime")
+ private[spark] val EXCLUDE_ON_FAILURE_LEGACY_TIMEOUT_CONF =
+ ConfigBuilder("spark.scheduler.executorTaskExcludeOnFailureTime")
.internal()
.version("1.0.0")
+ .withAlternative("spark.scheduler.executorTaskBlacklistTime")
.timeConf(TimeUnit.MILLISECONDS)
Review comment:
Given that this is already a legacy config marked as deprecated, it
doesn't seem worth adding a new version. What do you think?
##########
File path: core/src/main/scala/org/apache/spark/scheduler/HealthTracker.scala
##########
@@ -0,0 +1,478 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.scheduler
+
+import java.util.concurrent.atomic.AtomicReference
+
+import scala.collection.mutable.{ArrayBuffer, HashMap, HashSet}
+
+import org.apache.spark.{ExecutorAllocationClient, SparkConf, SparkContext}
+import org.apache.spark.internal.Logging
+import org.apache.spark.internal.config
+import org.apache.spark.util.{Clock, SystemClock, Utils}
+
+/**
+ * HealthTracker is designed to track problematic executors and nodes. It
supports excluding
+ * executors and nodes across an entire application (with a periodic expiry).
TaskSetManagers add
+ * additional logic for exclusion of executors and nodes for individual tasks
and stages which
+ * works in concert with the logic here.
+ *
+ * The tracker needs to deal with a variety of workloads, eg.:
+ *
+ * * bad user code -- this may lead to many task failures, but that should
not count against
+ * individual executors
+ * * many small stages -- this may prevent a bad executor for having many
failures within one
+ * stage, but still many failures over the entire application
+ * * "flaky" executors -- they don't fail every task, but are still faulty
enough to merit
+ * excluding
+ *
+ * See the design doc on SPARK-8425 for a more in-depth discussion.
Review comment:
People might become confused when they go to SPARK-8425 and the name is
completely different, should we also include a reference to SPARK-32037?
##########
File path: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala
##########
@@ -284,80 +284,138 @@ private[spark] class AppStatusListener(
}
override def onExecutorBlacklisted(event: SparkListenerExecutorBlacklisted):
Unit = {
- updateBlackListStatus(event.executorId, true)
+ updateExcludedStatus(event.executorId, true)
+ }
+
+ override def onExecutorExcluded(event: SparkListenerExecutorExcluded): Unit
= {
+ updateExcludedStatus(event.executorId, true)
}
override def onExecutorBlacklistedForStage(
- event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ event: SparkListenerExecutorBlacklistedForStage): Unit = {
+ val now = System.nanoTime()
+
Review comment:
Should we consider delegating this implementation to
`onExecutorExcludedForStage` to avoid code duplication? Same for others.
##########
File path:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnAllocatorNodeHealthTracker.scala
##########
@@ -72,72 +73,76 @@ private[spark] class YarnAllocatorBlacklistTracker(
def handleResourceAllocationFailure(hostOpt: Option[String]): Unit = {
hostOpt match {
- case Some(hostname) if launchBlacklistEnabled =>
- // failures on an already blacklisted nodes are not even tracked.
+ case Some(hostname) if launchExcludeOnFailureEnabled =>
+ // failures on an already excluded node are not even tracked.
// otherwise, such failures could shutdown the application
// as resource requests are asynchronous
// and a late failure response could exceed MAX_EXECUTOR_FAILURES
- if (!schedulerBlacklist.contains(hostname) &&
- !allocatorBlacklist.contains(hostname)) {
+ if (!schedulerExcludedNodeList.contains(hostname) &&
+ !allocatorExcludedNodeList.contains(hostname)) {
failureTracker.registerFailureOnHost(hostname)
- updateAllocationBlacklistedNodes(hostname)
+ updateAllocationExcludedNodes(hostname)
}
case _ =>
failureTracker.registerExecutorFailure()
}
}
- private def updateAllocationBlacklistedNodes(hostname: String): Unit = {
+ private def updateAllocationExcludedNodes(hostname: String): Unit = {
val failuresOnHost = failureTracker.numFailuresOnHost(hostname)
if (failuresOnHost > maxFailuresPerHost) {
- logInfo(s"blacklisting $hostname as YARN allocation failed
$failuresOnHost times")
- allocatorBlacklist.put(
+ logInfo(s"excluding $hostname as YARN allocation failed $failuresOnHost
times")
+ allocatorExcludedNodeList.put(
hostname,
- failureTracker.clock.getTimeMillis() + blacklistTimeoutMillis)
- refreshBlacklistedNodes()
+ failureTracker.clock.getTimeMillis() + excludeOnFailureTimeoutMillis)
+ refreshExcludedNodes()
}
}
- def setSchedulerBlacklistedNodes(schedulerBlacklistedNodesWithExpiry:
Set[String]): Unit = {
- this.schedulerBlacklist = schedulerBlacklistedNodesWithExpiry
- refreshBlacklistedNodes()
+ def setSchedulerExcludedNodes(schedulerExcludedNodesWithExpiry:
Set[String]): Unit = {
+ this.schedulerExcludedNodeList = schedulerExcludedNodesWithExpiry
+ refreshExcludedNodes()
}
- def isAllNodeBlacklisted: Boolean = {
+ def isAllNodeExcluded: Boolean = {
if (numClusterNodes <= 0) {
logWarning("No available nodes reported, please check Resource Manager.")
false
} else {
- currentBlacklistedYarnNodes.size >= numClusterNodes
+ currentExcludededYarnNodes.size >= numClusterNodes
}
}
- private def refreshBlacklistedNodes(): Unit = {
- removeExpiredYarnBlacklistedNodes()
- val allBlacklistedNodes = excludeNodes ++ schedulerBlacklist ++
allocatorBlacklist.keySet
- synchronizeBlacklistedNodeWithYarn(allBlacklistedNodes)
+ private def refreshExcludedNodes(): Unit = {
+ removeExpiredYarnExcludedNodes()
+ val allExcludeddNodes =
Review comment:
minor nit: `allExcludeddNodes` -> `allExcludedNodes`
##########
File path:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/config.scala
##########
@@ -379,14 +379,15 @@ package object config extends Logging {
.stringConf
.createOptional
- /* YARN allocator-level blacklisting related config entries. */
- private[spark] val YARN_EXECUTOR_LAUNCH_BLACKLIST_ENABLED =
- ConfigBuilder("spark.yarn.blacklist.executor.launch.blacklisting.enabled")
+ /* YARN allocator-level excludeOnFailure related config entries. */
+ private[spark] val YARN_EXECUTOR_LAUNCH_EXCLUDE_ON_FAILURE_ENABLED =
+ ConfigBuilder("spark.yarn.executor.launch.excludeOnFailure.enabled")
Review comment:
I wonder if `spark.yarn.exclude.excludeOnFailure.enabled` or something
might be better to bring it more in line with `spark.yarn.exclude.nodes`? I
don't really see why "launch" appears in this config name...
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