hadoop FlowScannerOperation 源码
haddop FlowScannerOperation 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScannerOperation.java
/**
* 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.yarn.server.timelineservice.storage.flow;
/**
* Identifies the scanner operation on the {@link FlowRunTable}.
*/
public enum FlowScannerOperation {
/**
* If the scanner is opened for reading
* during preGet or preScan.
*/
READ,
/**
* If the scanner is opened during preFlush.
*/
FLUSH,
/**
* If the scanner is opened during minor Compaction.
*/
MINOR_COMPACTION,
/**
* If the scanner is opened during major Compaction.
*/
MAJOR_COMPACTION
}
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