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/*
* 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.flink.runtime.resourcemanager;
import org.apache.flink.api.common.JobID;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.runtime.blob.BlobServer;
import org.apache.flink.runtime.blob.TransientBlobKey;
import org.apache.flink.runtime.clusterframework.ApplicationStatus;
import org.apache.flink.runtime.clusterframework.types.AllocationID;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.clusterframework.types.SlotID;
import org.apache.flink.runtime.instance.InstanceID;
import org.apache.flink.runtime.io.network.partition.ClusterPartitionManager;
import org.apache.flink.runtime.jobmaster.JobMaster;
import org.apache.flink.runtime.jobmaster.JobMasterId;
import org.apache.flink.runtime.messages.Acknowledge;
import org.apache.flink.runtime.metrics.dump.MetricQueryService;
import org.apache.flink.runtime.registration.RegistrationResponse;
import org.apache.flink.runtime.rest.messages.LogInfo;
import org.apache.flink.runtime.rest.messages.taskmanager.TaskManagerInfo;
import org.apache.flink.runtime.rest.messages.taskmanager.ThreadDumpInfo;
import org.apache.flink.runtime.rpc.FencedRpcGateway;
import org.apache.flink.runtime.rpc.RpcTimeout;
import org.apache.flink.runtime.taskexecutor.FileType;
import org.apache.flink.runtime.taskexecutor.SlotReport;
import org.apache.flink.runtime.taskexecutor.TaskExecutor;
import org.apache.flink.runtime.taskexecutor.TaskExecutorHeartbeatPayload;
import javax.annotation.Nullable;
import java.util.Collection;
import java.util.concurrent.CompletableFuture;
/**
* The {@link ResourceManager}'s RPC gateway interface.
*/
public interface ResourceManagerGateway extends FencedRpcGateway, ClusterPartitionManager {
/**
* Register a {@link JobMaster} at the resource manager.
*
* @param jobMasterId The fencing token for the JobMaster leader
* @param jobMasterResourceId The resource ID of the JobMaster that registers
* @param jobMasterAddress The address of the JobMaster that registers
* @param jobId The Job ID of the JobMaster that registers
* @param timeout Timeout for the future to complete
* @return Future registration response
*/
CompletableFuture registerJobManager(
JobMasterId jobMasterId,
ResourceID jobMasterResourceId,
String jobMasterAddress,
JobID jobId,
@RpcTimeout Time timeout);
/**
* Requests a slot from the resource manager.
*
* @param jobMasterId id of the JobMaster
* @param slotRequest The slot to request
* @return The confirmation that the slot gets allocated
*/
CompletableFuture requestSlot(
JobMasterId jobMasterId,
SlotRequest slotRequest,
@RpcTimeout Time timeout);
/**
* Cancel the slot allocation requests from the resource manager.
*
* @param allocationID The slot to request
*/
void cancelSlotRequest(AllocationID allocationID);
/**
* Register a {@link TaskExecutor} at the resource manager.
*
* @param taskExecutorRegistration the task executor registration.
* @param timeout The timeout for the response.
*
* @return The future to the response by the ResourceManager.
*/
CompletableFuture registerTaskExecutor(
TaskExecutorRegistration taskExecutorRegistration,
@RpcTimeout Time timeout);
/**
* Sends the given {@link SlotReport} to the ResourceManager.
*
* @param taskManagerRegistrationId id identifying the sending TaskManager
* @param slotReport which is sent to the ResourceManager
* @param timeout for the operation
* @return Future which is completed with {@link Acknowledge} once the slot report has been received.
*/
CompletableFuture sendSlotReport(
ResourceID taskManagerResourceId,
InstanceID taskManagerRegistrationId,
SlotReport slotReport,
@RpcTimeout Time timeout);
/**
* Sent by the TaskExecutor to notify the ResourceManager that a slot has become available.
*
* @param instanceId TaskExecutor's instance id
* @param slotID The SlotID of the freed slot
* @param oldAllocationId to which the slot has been allocated
*/
void notifySlotAvailable(
InstanceID instanceId,
SlotID slotID,
AllocationID oldAllocationId);
/**
* Deregister Flink from the underlying resource management system.
*
* @param finalStatus final status with which to deregister the Flink application
* @param diagnostics additional information for the resource management system, can be {@code null}
*/
CompletableFuture deregisterApplication(final ApplicationStatus finalStatus, @Nullable final String diagnostics);
/**
* Gets the currently registered number of TaskManagers.
*
* @return The future to the number of registered TaskManagers.
*/
CompletableFuture getNumberOfRegisteredTaskManagers();
/**
* Sends the heartbeat to resource manager from task manager
*
* @param heartbeatOrigin unique id of the task manager
* @param heartbeatPayload payload from the originating TaskManager
*/
void heartbeatFromTaskManager(final ResourceID heartbeatOrigin, final TaskExecutorHeartbeatPayload heartbeatPayload);
/**
* Sends the heartbeat to resource manager from job manager
*
* @param heartbeatOrigin unique id of the job manager
*/
void heartbeatFromJobManager(final ResourceID heartbeatOrigin);
/**
* Disconnects a TaskManager specified by the given resourceID from the {@link ResourceManager}.
*
* @param resourceID identifying the TaskManager to disconnect
* @param cause for the disconnection of the TaskManager
*/
void disconnectTaskManager(ResourceID resourceID, Exception cause);
/**
* Disconnects a JobManager specified by the given resourceID from the {@link ResourceManager}.
*
* @param jobId JobID for which the JobManager was the leader
* @param cause for the disconnection of the JobManager
*/
void disconnectJobManager(JobID jobId, Exception cause);
/**
* Requests information about the registered {@link TaskExecutor}.
*
* @param timeout of the request
* @return Future collection of TaskManager information
*/
CompletableFuture> requestTaskManagerInfo(@RpcTimeout Time timeout);
/**
* Requests information about the given {@link TaskExecutor}.
*
* @param taskManagerId identifying the TaskExecutor for which to return information
* @param timeout of the request
* @return Future TaskManager information
*/
CompletableFuture requestTaskManagerInfo(ResourceID taskManagerId, @RpcTimeout Time timeout);
/**
* Requests the resource overview. The resource overview provides information about the
* connected TaskManagers, the total number of slots and the number of available slots.
*
* @param timeout of the request
* @return Future containing the resource overview
*/
CompletableFuture requestResourceOverview(@RpcTimeout Time timeout);
/**
* Requests the paths for the TaskManager's {@link MetricQueryService} to query.
*
* @param timeout for the asynchronous operation
* @return Future containing the collection of resource ids and the corresponding metric query service path
*/
CompletableFuture>> requestTaskManagerMetricQueryServiceAddresses(@RpcTimeout Time timeout);
/**
* Request the file upload from the given {@link TaskExecutor} to the cluster's {@link BlobServer}. The
* corresponding {@link TransientBlobKey} is returned.
*
* @param taskManagerId identifying the {@link TaskExecutor} to upload the specified file
* @param fileType type of the file to upload
* @param timeout for the asynchronous operation
* @return Future which is completed with the {@link TransientBlobKey} after uploading the file to the
* {@link BlobServer}.
*/
CompletableFuture requestTaskManagerFileUploadByType(ResourceID taskManagerId, FileType fileType, @RpcTimeout Time timeout);
/**
* Request the file upload from the given {@link TaskExecutor} to the cluster's {@link BlobServer}. The
* corresponding {@link TransientBlobKey} is returned.
*
* @param taskManagerId identifying the {@link TaskExecutor} to upload the specified file
* @param fileName name of the file to upload
* @param timeout for the asynchronous operation
* @return Future which is completed with the {@link TransientBlobKey} after uploading the file to the
* {@link BlobServer}.
*/
CompletableFuture requestTaskManagerFileUploadByName(ResourceID taskManagerId, String fileName, @RpcTimeout Time timeout);
/**
* Request log list from the given {@link TaskExecutor}.
* @param taskManagerId identifying the {@link TaskExecutor} to get log list from
* @param timeout for the asynchronous operation
* @return Future which is completed with the historical log list
*/
CompletableFuture> requestTaskManagerLogList(ResourceID taskManagerId, @RpcTimeout Time timeout);
/**
* Requests the thread dump from the given {@link TaskExecutor}.
*
* @param taskManagerId taskManagerId identifying the {@link TaskExecutor} to get the thread dump from
* @param timeout timeout of the asynchronous operation
* @return Future containing the thread dump information
*/
CompletableFuture requestThreadDump(ResourceID taskManagerId, @RpcTimeout Time timeout);
}
