hadoop JournalNodeMXBean 源码
haddop JournalNodeMXBean 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalNodeMXBean.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.hdfs.qjournal.server;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import java.util.List;
/**
* This is the JMX management interface for JournalNode information
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface JournalNodeMXBean {
/**
* Get status information (e.g., whether formatted) of JournalNode's journals.
*
* @return A string presenting status for each journal
*/
String getJournalsStatus();
/**
* Get host and port of JournalNode.
*
* @return colon separated host and port.
*/
String getHostAndPort();
/**
* Get list of the clusters of JournalNode's journals
* as one JournalNode may support multiple clusters.
*
* @return list of clusters.
*/
List<String> getClusterIds();
/**
* Gets the version of Hadoop.
*
* @return the version of Hadoop.
*/
String getVersion();
/**
* Get the start time of the JournalNode.
*
* @return the start time of the JournalNode.
*/
long getJNStartedTimeInMillis();
/**
* Get the list of the storage infos of JournalNode's journals. Storage infos
* include layout version, namespace id, cluster id and creation time of the
* File system state.
*
* @return the list of storage infos associated with journals.
*/
List<String> getStorageInfos();
}
相关信息
相关文章
hadoop GetJournalEditServlet 源码
hadoop JournalFaultInjector 源码
hadoop JournalNodeHttpServer 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
7、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦