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HDFS-5585. Provide admin commands for data node upgrade. Contributed by Kihwal Lee. (missing file)

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-5535@1568524 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Kihwal Lee 2014-02-14 21:20:34 +00:00
parent 1a68f13521
commit 9830ef0d32
1 changed files with 64 additions and 0 deletions
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64
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/DatanodeLocalInfo.java Normal file
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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.hdfs.protocol;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* Locally available datanode information
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class DatanodeLocalInfo {
private String softwareVersion;
private String configVersion;
private long uptime; // datanode uptime in seconds.
public DatanodeLocalInfo(String softwareVersion,
String configVersion, long uptime) {
this.softwareVersion = softwareVersion;
this.configVersion = configVersion;
this.uptime = uptime;
}
/** get software version */
public String getSoftwareVersion() {
return this.softwareVersion;
}
/** get config version */
public String getConfigVersion() {
return this.configVersion;
}
/** get uptime */
public long getUptime() {
return this.uptime;
}
/** A formatted string for printing the status of the DataNode. */
public String getDatanodeLocalReport() {
StringBuilder buffer = new StringBuilder();
buffer.append("Uptime: " + getUptime());
buffer.append(", Software version: " + getSoftwareVersion());
buffer.append(", Config version: " + getConfigVersion());
return buffer.toString();
}
}