org.apache.druid.server.metrics.TaskCountStatsProvider Maven / Gradle / Ivy

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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.druid.server.metrics;

import org.apache.druid.server.coordinator.stats.CoordinatorRunStats;

import java.util.Map;

public interface TaskCountStatsProvider
{
  /**
   * Return the number of successful tasks for each datasource during emission period.
   */
  @Deprecated
  Map getSuccessfulTaskCount();

  /**
   * Return the number of failed tasks for each datasource during emission period.
   */
  @Deprecated
  Map getFailedTaskCount();

  /**
   * Return the number of current running tasks for each datasource.
   */
  @Deprecated
  Map getRunningTaskCount();

  /**
   * Return the number of current pending tasks for each datasource.
   */
  @Deprecated
  Map getPendingTaskCount();

  /**
   * Return the number of current waiting tasks for each datasource.
   */
  @Deprecated
  Map getWaitingTaskCount();

  /**
   * Collects all task level stats. This method deprecates the other task stats
   * methods such as {@link #getPendingTaskCount()}, {@link #getWaitingTaskCount()}
   * and will replace them in a future release.
   *
   * @return All task stats collected since the previous invocation of this method.
   */
  CoordinatorRunStats getStats();
}