org.apache.hadoop.hbase.regionserver.wal.MetricsWALEditsReplay Maven / Gradle / Ivy

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Server functionality for HBase

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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.hadoop.hbase.regionserver.wal;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.hadoop.util.StringUtils;

/**
 * Class used to push numbers about WAL edits replay into the metrics subsystem. This will take a
 * single function call and turn it into multiple manipulations of the hadoop metrics system.
 */
@InterfaceAudience.Private
public class MetricsWALEditsReplay {
  static final Log LOG = LogFactory.getLog(MetricsWALEditsReplay.class);

  private final MetricsEditsReplaySource source;

  public MetricsWALEditsReplay() {
    source = CompatibilitySingletonFactory.getInstance(MetricsEditsReplaySource.class);
  }

  /**
   * Add the time a replay command took
   */
  void updateReplayTime(long time) {
    source.updateReplayTime(time);
  }

  /**
   * Add the batch size of each replay
   */
  void updateReplayBatchSize(long size) {
    source.updateReplayDataSize(size);
  }

  /**
   * Add the payload data size of each replay
   */
  void updateReplayDataSize(long size) {
  }
}