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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;

import org.apache.yetus.audience.InterfaceAudience;

/**
 * Reasons we flush.
 * @see MemStoreFlusher
 * @see FlushRequester
 */
@InterfaceAudience.Private
enum FlushType {
  NORMAL,
  ABOVE_ONHEAP_LOWER_MARK, /* happens due to lower mark breach of onheap memstore settings
                              An offheap memstore can even breach the onheap_lower_mark*/
  ABOVE_ONHEAP_HIGHER_MARK,/* happens due to higher mark breach of onheap memstore settings
                              An offheap memstore can even breach the onheap_higher_mark*/
  ABOVE_OFFHEAP_LOWER_MARK,/* happens due to lower mark breach of offheap memstore settings*/
  ABOVE_OFFHEAP_HIGHER_MARK;/*/* happens due to higer mark breach of offheap memstore settings*/
}