XComp commented on a change in pull request #13311:
URL: https://github.com/apache/flink/pull/13311#discussion_r488425949
##########
File path:
flink-yarn/src/main/java/org/apache/flink/yarn/YarnResourceManagerDriver.java
##########
@@ -72,354 +62,237 @@
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
+import java.util.HashMap;
import java.util.Iterator;
+import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
+import java.util.Queue;
import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.CompletableFuture;
import java.util.stream.Collectors;
/**
- * The yarn implementation of the resource manager. Used when the system is
started
- * via the resource framework YARN.
+ * Implementation of {@link ResourceManagerDriver} for Kubernetes deployment.
*/
-public class YarnResourceManager extends
LegacyActiveResourceManager<YarnWorkerNode>
- implements AMRMClientAsync.CallbackHandler,
NMClientAsync.CallbackHandler {
+public class YarnResourceManagerDriver extends
AbstractResourceManagerDriver<YarnWorkerNode> {
private static final Priority RM_REQUEST_PRIORITY =
Priority.newInstance(1);
- /** YARN container map. */
- private final ConcurrentMap<ResourceID, YarnWorkerNode> workerNodeMap;
-
/** Environment variable name of the hostname given by the YARN.
* In task executor we use the hostnames given by YARN consistently
throughout akka */
static final String ENV_FLINK_NODE_ID = "_FLINK_NODE_ID";
static final String ERROR_MASSAGE_ON_SHUTDOWN_REQUEST = "Received
shutdown request from YARN ResourceManager.";
- /** Default heartbeat interval between this resource manager and the
YARN ResourceManager. */
- private final int yarnHeartbeatIntervalMillis;
-
private final YarnConfiguration yarnConfig;
- @Nullable
- private final String webInterfaceUrl;
+ /** The process environment variables. */
+ private final YarnResourceManagerDriverConfiguration configuration;
- /** The heartbeat interval while the resource master is waiting for
containers. */
- private final int containerRequestHeartbeatIntervalMillis;
+ /** Default heartbeat interval between this resource manager and the
YARN ResourceManager. */
+ private final int yarnHeartbeatIntervalMillis;
/** Client to communicate with the Resource Manager (YARN's master). */
private AMRMClientAsync<AMRMClient.ContainerRequest>
resourceManagerClient;
+ /** The heartbeat interval while the resource master is waiting for
containers. */
+ private final int containerRequestHeartbeatIntervalMillis;
+
/** Client to communicate with the Node manager and launch TaskExecutor
processes. */
private NMClientAsync nodeManagerClient;
- private final WorkerSpecContainerResourceAdapter
workerSpecContainerResourceAdapter;
+ /** Request resource futures, keyed by container ids. */
+ private final Map<TaskExecutorProcessSpec,
Queue<CompletableFuture<YarnWorkerNode>>> requestResourceFutures;
+
+ private final TaskExecutorProcessSpecContainerResourceAdapter
taskExecutorProcessSpecContainerResourceAdapter;
private final RegisterApplicationMasterResponseReflector
registerApplicationMasterResponseReflector;
- private WorkerSpecContainerResourceAdapter.MatchingStrategy
matchingStrategy;
-
- public YarnResourceManager(
- RpcService rpcService,
- ResourceID resourceId,
- Configuration flinkConfig,
- Map<String, String> env,
- HighAvailabilityServices highAvailabilityServices,
- HeartbeatServices heartbeatServices,
- SlotManager slotManager,
- ResourceManagerPartitionTrackerFactory
clusterPartitionTrackerFactory,
- JobLeaderIdService jobLeaderIdService,
- ClusterInformation clusterInformation,
- FatalErrorHandler fatalErrorHandler,
- @Nullable String webInterfaceUrl,
- ResourceManagerMetricGroup resourceManagerMetricGroup) {
- super(
- flinkConfig,
- env,
- rpcService,
- resourceId,
- highAvailabilityServices,
- heartbeatServices,
- slotManager,
- clusterPartitionTrackerFactory,
- jobLeaderIdService,
- clusterInformation,
- fatalErrorHandler,
- resourceManagerMetricGroup);
+ private
TaskExecutorProcessSpecContainerResourceAdapter.MatchingStrategy
matchingStrategy;
+
+ private final YarnResourceManagerClientFactory
yarnResourceManagerClientFactory;
+
+ private final YarnNodeManagerClientFactory yarnNodeManagerClientFactory;
+
+ public YarnResourceManagerDriver(
+ Configuration flinkConfig,
+ YarnResourceManagerDriverConfiguration configuration,
+ YarnResourceManagerClientFactory
yarnResourceManagerClientFactory,
+ YarnNodeManagerClientFactory yarnNodeManagerClientFactory) {
+ super(flinkConfig,
GlobalConfiguration.loadConfiguration(configuration.getCurrentDir()));
+
this.yarnConfig = new YarnConfiguration();
- this.workerNodeMap = new ConcurrentHashMap<>();
+ this.requestResourceFutures = new HashMap<>();
+ this.configuration = configuration;
+
final int yarnHeartbeatIntervalMS = flinkConfig.getInteger(
- YarnConfigOptions.HEARTBEAT_DELAY_SECONDS) *
1000;
+ YarnConfigOptions.HEARTBEAT_DELAY_SECONDS) * 1000;
final long yarnExpiryIntervalMS = yarnConfig.getLong(
- YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS,
-
YarnConfiguration.DEFAULT_RM_AM_EXPIRY_INTERVAL_MS);
+ YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS,
+ YarnConfiguration.DEFAULT_RM_AM_EXPIRY_INTERVAL_MS);
if (yarnHeartbeatIntervalMS >= yarnExpiryIntervalMS) {
log.warn("The heartbeat interval of the Flink
Application master ({}) is greater " +
"than YARN's expiry interval ({}). The
application is likely to be killed by YARN.",
- yarnHeartbeatIntervalMS,
yarnExpiryIntervalMS);
+ yarnHeartbeatIntervalMS, yarnExpiryIntervalMS);
}
yarnHeartbeatIntervalMillis = yarnHeartbeatIntervalMS;
containerRequestHeartbeatIntervalMillis =
flinkConfig.getInteger(YarnConfigOptions.CONTAINER_REQUEST_HEARTBEAT_INTERVAL_MILLISECONDS);
- this.webInterfaceUrl = webInterfaceUrl;
-
- this.workerSpecContainerResourceAdapter =
Utils.createWorkerSpecContainerResourceAdapter(flinkConfig, yarnConfig);
+ this.taskExecutorProcessSpecContainerResourceAdapter =
Utils.createTaskExecutorProcessSpecContainerResourceAdapter(flinkConfig,
yarnConfig);
this.registerApplicationMasterResponseReflector = new
RegisterApplicationMasterResponseReflector(log);
this.matchingStrategy =
flinkConfig.getBoolean(YarnConfigOptionsInternal.MATCH_CONTAINER_VCORES) ?
-
WorkerSpecContainerResourceAdapter.MatchingStrategy.MATCH_VCORE :
-
WorkerSpecContainerResourceAdapter.MatchingStrategy.IGNORE_VCORE;
- }
-
- protected AMRMClientAsync<AMRMClient.ContainerRequest>
createAndStartResourceManagerClient(
- YarnConfiguration yarnConfiguration,
- int yarnHeartbeatIntervalMillis,
- @Nullable String webInterfaceUrl) throws Exception {
- AMRMClientAsync<AMRMClient.ContainerRequest>
resourceManagerClient = AMRMClientAsync.createAMRMClientAsync(
- yarnHeartbeatIntervalMillis,
- this);
-
- resourceManagerClient.init(yarnConfiguration);
- resourceManagerClient.start();
-
- //TODO: change akka address to tcp host and port, the
getAddress() interface should return a standard tcp address
- Tuple2<String, Integer> hostPort = parseHostPort(getAddress());
-
- final int restPort;
-
- if (webInterfaceUrl != null) {
- final int lastColon = webInterfaceUrl.lastIndexOf(':');
-
- if (lastColon == -1) {
- restPort = -1;
- } else {
- restPort =
Integer.valueOf(webInterfaceUrl.substring(lastColon + 1));
- }
- } else {
- restPort = -1;
- }
-
- final RegisterApplicationMasterResponse
registerApplicationMasterResponse =
-
resourceManagerClient.registerApplicationMaster(hostPort.f0, restPort,
webInterfaceUrl);
-
getContainersFromPreviousAttempts(registerApplicationMasterResponse);
- updateMatchingStrategy(registerApplicationMasterResponse);
+
TaskExecutorProcessSpecContainerResourceAdapter.MatchingStrategy.MATCH_VCORE :
+
TaskExecutorProcessSpecContainerResourceAdapter.MatchingStrategy.IGNORE_VCORE;
- return resourceManagerClient;
+ this.yarnResourceManagerClientFactory =
yarnResourceManagerClientFactory;
+ this.yarnNodeManagerClientFactory =
yarnNodeManagerClientFactory;
}
- private void getContainersFromPreviousAttempts(final
RegisterApplicationMasterResponse registerApplicationMasterResponse) {
- final List<Container> containersFromPreviousAttempts =
-
registerApplicationMasterResponseReflector.getContainersFromPreviousAttempts(registerApplicationMasterResponse);
-
- log.info("Recovered {} containers from previous attempts
({}).", containersFromPreviousAttempts.size(), containersFromPreviousAttempts);
-
- for (final Container container :
containersFromPreviousAttempts) {
- final ResourceID resourceID =
getContainerResourceId(container);
- workerNodeMap.put(resourceID, new
YarnWorkerNode(container, resourceID));
- }
- }
-
- private void updateMatchingStrategy(final
RegisterApplicationMasterResponse registerApplicationMasterResponse) {
- final Optional<Set<String>> schedulerResourceTypesOptional =
-
registerApplicationMasterResponseReflector.getSchedulerResourceTypeNames(registerApplicationMasterResponse);
-
- final WorkerSpecContainerResourceAdapter.MatchingStrategy
strategy;
- if (schedulerResourceTypesOptional.isPresent()) {
- Set<String> types =
schedulerResourceTypesOptional.get();
- log.info("Register application master response contains
scheduler resource types: {}.", types);
- matchingStrategy = types.contains("CPU") ?
-
WorkerSpecContainerResourceAdapter.MatchingStrategy.MATCH_VCORE :
-
WorkerSpecContainerResourceAdapter.MatchingStrategy.IGNORE_VCORE;
- } else {
- log.info("Register application master response does not
contain scheduler resource types, use '{}'.",
-
YarnConfigOptionsInternal.MATCH_CONTAINER_VCORES.key());
- }
- log.info("Container matching strategy: {}.", matchingStrategy);
- }
-
- protected NMClientAsync
createAndStartNodeManagerClient(YarnConfiguration yarnConfiguration) {
- // create the client to communicate with the node managers
- NMClientAsync nodeManagerClient =
NMClientAsync.createNMClientAsync(this);
- nodeManagerClient.init(yarnConfiguration);
- nodeManagerClient.start();
- return nodeManagerClient;
- }
-
- @Override
- protected Configuration loadClientConfiguration() {
- return
GlobalConfiguration.loadConfiguration(env.get(ApplicationConstants.Environment.PWD.key()));
- }
+ //
------------------------------------------------------------------------
+ // ResourceManagerDriver
+ //
------------------------------------------------------------------------
@Override
- protected void initialize() throws ResourceManagerException {
+ protected void initializeInternal() throws Exception {
+ final YarnContainerEventHandler yarnContainerEventHandler = new
YarnContainerEventHandler();
try {
- resourceManagerClient =
createAndStartResourceManagerClient(
- yarnConfig,
+ resourceManagerClient =
yarnResourceManagerClientFactory.createResourceManagerClient(
yarnHeartbeatIntervalMillis,
- webInterfaceUrl);
+ yarnContainerEventHandler);
+ resourceManagerClient.init(yarnConfig);
+ resourceManagerClient.start();
+
+ final RegisterApplicationMasterResponse
registerApplicationMasterResponse = registerApplicationMaster();
+
getContainersFromPreviousAttempts(registerApplicationMasterResponse);
+
updateMatchingStrategy(registerApplicationMasterResponse);
} catch (Exception e) {
throw new ResourceManagerException("Could not start
resource manager client.", e);
}
- nodeManagerClient = createAndStartNodeManagerClient(yarnConfig);
+ nodeManagerClient =
yarnNodeManagerClientFactory.createNodeManagerClient(yarnContainerEventHandler);
+ nodeManagerClient.init(yarnConfig);
+ nodeManagerClient.start();
}
@Override
- public void terminate() throws Exception {
+ public CompletableFuture<Void> terminate() {
// shut down all components
- Exception firstException = null;
+ Exception exception = null;
if (resourceManagerClient != null) {
try {
resourceManagerClient.stop();
} catch (Exception e) {
- firstException = e;
+ exception = e;
}
}
if (nodeManagerClient != null) {
try {
nodeManagerClient.stop();
} catch (Exception e) {
- firstException =
ExceptionUtils.firstOrSuppressed(e, firstException);
+ exception = ExceptionUtils.firstOrSuppressed(e,
exception);
}
}
- ExceptionUtils.tryRethrowException(firstException);
+ return exception == null ?
+ FutureUtils.completedVoidFuture() :
+ FutureUtils.completedExceptionally(exception);
}
@Override
- protected void internalDeregisterApplication(
- ApplicationStatus finalStatus,
- @Nullable String diagnostics) {
-
+ public void deregisterApplication(ApplicationStatus finalStatus,
@Nullable String optionalDiagnostics) {
// first, de-register from YARN
- FinalApplicationStatus yarnStatus = getYarnStatus(finalStatus);
+ final FinalApplicationStatus yarnStatus =
getYarnStatus(finalStatus);
log.info("Unregister application from the YARN Resource Manager
with final status {}.", yarnStatus);
final Optional<URL> historyServerURL =
HistoryServerUtils.getHistoryServerURL(flinkConfig);
final String appTrackingUrl =
historyServerURL.map(URL::toString).orElse("");
try {
-
resourceManagerClient.unregisterApplicationMaster(yarnStatus, diagnostics,
appTrackingUrl);
+
resourceManagerClient.unregisterApplicationMaster(yarnStatus,
optionalDiagnostics, appTrackingUrl);
} catch (Throwable t) {
log.error("Could not unregister the application
master.", t);
}
- Utils.deleteApplicationFiles(env);
+ Utils.deleteApplicationFiles(configuration.getYarnFiles());
}
@Override
- public boolean startNewWorker(WorkerResourceSpec workerResourceSpec) {
- return requestYarnContainer(workerResourceSpec);
- }
+ public CompletableFuture<YarnWorkerNode>
requestResource(TaskExecutorProcessSpec taskExecutorProcessSpec) {
+ final Optional<Resource> containerResourceOptional =
getContainerResource(taskExecutorProcessSpec);
+ final CompletableFuture<YarnWorkerNode> requestResourceFuture =
new CompletableFuture<>();
- @VisibleForTesting
- Optional<Resource> getContainerResource(WorkerResourceSpec
workerResourceSpec) {
- return
workerSpecContainerResourceAdapter.tryComputeContainerResource(workerResourceSpec);
+ if (containerResourceOptional.isPresent()) {
+
resourceManagerClient.addContainerRequest(getContainerRequest(containerResourceOptional.get()));
+
+ // make sure we transmit the request fast and receive
fast news of granted allocations
+
resourceManagerClient.setHeartbeatInterval(containerRequestHeartbeatIntervalMillis);
+
+
requestResourceFutures.computeIfAbsent(taskExecutorProcessSpec, ignore -> new
LinkedList<>()).add(requestResourceFuture);
+
+ log.info("Requesting new TaskExecutor container with
resource {}.", taskExecutorProcessSpec);
+ } else {
+ requestResourceFuture.completeExceptionally(
+ new
ResourceManagerException(String.format("Could not compute the container
Resource from the given TaskExecutorProcessSpec %s.",
taskExecutorProcessSpec)));
+ }
+
+ return requestResourceFuture;
}
@Override
- public boolean stopWorker(final YarnWorkerNode workerNode) {
+ public void releaseResource(YarnWorkerNode workerNode) {
final Container container = workerNode.getContainer();
log.info("Stopping container {}.",
workerNode.getResourceID().getStringWithMetadata());
nodeManagerClient.stopContainerAsync(container.getId(),
container.getNodeId());
resourceManagerClient.releaseAssignedContainer(container.getId());
- workerNodeMap.remove(workerNode.getResourceID());
- return true;
- }
-
- @Override
- protected YarnWorkerNode workerStarted(ResourceID resourceID) {
- return workerNodeMap.get(resourceID);
}
//
------------------------------------------------------------------------
- // AMRMClientAsync CallbackHandler methods
+ // Internal
//
------------------------------------------------------------------------
- @Override
- public float getProgress() {
- // Temporarily need not record the total size of asked and
allocated containers
- return 1;
- }
-
- @Override
- public void onContainersCompleted(final List<ContainerStatus> statuses)
{
- runAsync(() -> {
- log.debug("YARN ResourceManager reported the
following containers completed: {}.", statuses);
- for (final ContainerStatus containerStatus :
statuses) {
-
- final ResourceID resourceId = new
ResourceID(containerStatus.getContainerId().toString());
- final YarnWorkerNode yarnWorkerNode =
workerNodeMap.remove(resourceId);
-
-
notifyAllocatedWorkerStopped(resourceId);
-
- if (yarnWorkerNode != null) {
- // Container completed
unexpectedly ~> start a new one
-
requestYarnContainerIfRequired();
- }
- // Eagerly close the connection with
task manager.
- closeTaskManagerConnection(resourceId,
new Exception(containerStatus.getDiagnostics()));
- }
- }
- );
- }
-
- @Override
- public void onContainersAllocated(List<Container> containers) {
- runAsync(() -> {
- log.info("Received {} containers.", containers.size());
-
- for (Map.Entry<Resource, List<Container>> entry :
groupContainerByResource(containers).entrySet()) {
- onContainersOfResourceAllocated(entry.getKey(),
entry.getValue());
- }
-
- // if we are waiting for no further containers, we can
go to the
- // regular heartbeat interval
- if (getNumRequestedNotAllocatedWorkers() <= 0) {
-
resourceManagerClient.setHeartbeatInterval(yarnHeartbeatIntervalMillis);
- }
- });
- }
-
- private Map<Resource, List<Container>>
groupContainerByResource(List<Container> containers) {
- return
containers.stream().collect(Collectors.groupingBy(Container::getResource));
- }
-
private void onContainersOfResourceAllocated(Resource resource,
List<Container> containers) {
- final List<WorkerResourceSpec> pendingWorkerResourceSpecs =
-
workerSpecContainerResourceAdapter.getWorkerSpecs(resource,
matchingStrategy).stream()
+ final List<TaskExecutorProcessSpec>
pendingTaskExecutorProcessSpecs =
+
taskExecutorProcessSpecContainerResourceAdapter.getTaskExecutorProcessSpec(resource,
matchingStrategy).stream()
.flatMap(spec ->
Collections.nCopies(getNumRequestedNotAllocatedWorkersFor(spec), spec).stream())
.collect(Collectors.toList());
- int numPending = pendingWorkerResourceSpecs.size();
+ int numPending = pendingTaskExecutorProcessSpecs.size();
log.info("Received {} containers with resource {}, {} pending
container requests.",
containers.size(),
resource,
numPending);
final Iterator<Container> containerIterator =
containers.iterator();
- final Iterator<WorkerResourceSpec> pendingWorkerSpecIterator =
pendingWorkerResourceSpecs.iterator();
+ final Iterator<TaskExecutorProcessSpec>
pendingTaskExecutorProcessSpecIterator =
pendingTaskExecutorProcessSpecs.iterator();
final Iterator<AMRMClient.ContainerRequest>
pendingRequestsIterator =
- getPendingRequestsAndCheckConsistency(resource,
pendingWorkerResourceSpecs.size()).iterator();
+ getPendingRequestsAndCheckConsistency(resource,
pendingTaskExecutorProcessSpecs.size()).iterator();
int numAccepted = 0;
- while (containerIterator.hasNext() &&
pendingWorkerSpecIterator.hasNext()) {
- final WorkerResourceSpec workerResourceSpec =
pendingWorkerSpecIterator.next();
+ while (containerIterator.hasNext() &&
pendingTaskExecutorProcessSpecIterator.hasNext()) {
+ final TaskExecutorProcessSpec taskExecutorProcessSpec =
pendingTaskExecutorProcessSpecIterator.next();
final Container container = containerIterator.next();
final AMRMClient.ContainerRequest pendingRequest =
pendingRequestsIterator.next();
final ResourceID resourceId =
getContainerResourceId(container);
+ final CompletableFuture<YarnWorkerNode>
requestResourceFuture =
+ Preconditions.checkNotNull(
+ Preconditions.checkNotNull(
+
requestResourceFutures.get(taskExecutorProcessSpec),
+ "The requestResourceFuture for
TasExecutorProcessSpec %s should not be null.", taskExecutorProcessSpec).poll(),
+ "The requestResourceFuture queue for
TasExecutorProcessSpec %s should not be empty.", taskExecutorProcessSpec);
+ if
(requestResourceFutures.get(taskExecutorProcessSpec).isEmpty()) {
Review comment:
I see. Don't know why I didn't think about that. Thanks for explaining.
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