这里包含我们使用到的组件:HDFS, YARN, HBase, Hive, ZooKeeper:


节点 默认端口 配置 用途说明
HDFS DataNode 50010 dfs.datanode.address datanode服务端口,用于数据传输
HDFS DataNode 50075 dfs.datanode.http.address http服务的端口
HDFS DataNode 50475 dfs.datanode.https.address https服务的端口
HDFS DataNode 50020 dfs.datanode.ipc.address ipc服务的端口
HDFS NameNode 50070 dfs.namenode.http-address http服务的端口
HDFS NameNode 50470 dfs.namenode.https-address https服务的端口
HDFS NameNode 8020 fs.defaultFS 接收Client连接的RPC端口,用于获取文件系统metadata信息。
HDFS journalnode 8485 dfs.journalnode.rpc-address RPC服务
HDFS journalnode 8480 dfs.journalnode.http-address HTTP服务
HDFS ZKFC 8019 dfs.ha.zkfc.port ZooKeeper FailoverController,用于NN HA
YARN ResourceManager 8032 yarn.resourcemanager.address RM的applications manager(ASM)端口
YARN ResourceManager 8030 yarn.resourcemanager.scheduler.address scheduler组件的IPC端口
YARN ResourceManager 8031 yarn.resourcemanager.resource-tracker.address IPC
YARN ResourceManager 8033 yarn.resourcemanager.admin.address IPC
YARN ResourceManager 8088 yarn.resourcemanager.webapp.address http服务端口
YARN NodeManager 8040 yarn.nodemanager.localizer.address localizer IPC
YARN NodeManager 8042 yarn.nodemanager.webapp.address http服务端口
YARN NodeManager 8041 yarn.nodemanager.address NM中container manager的端口
YARN JobHistory Server 10020 mapreduce.jobhistory.address IPC
YARN JobHistory Server 19888 mapreduce.jobhistory.webapp.address http服务端口
HBase Master 60000 hbase.master.port IPC
HBase Master 60010 hbase.master.info.port http服务端口
HBase RegionServer 60020 hbase.regionserver.port IPC
HBase RegionServer 60030 hbase.regionserver.info.port http服务端口
HBase HQuorumPeer 2181 hbase.zookeeper.property.clientPort HBase-managed ZK mode,使用独立的ZooKeeper集群则不会启用该端口。
HBase HQuorumPeer 2888 hbase.zookeeper.peerport HBase-managed ZK mode,使用独立的ZooKeeper集群则不会启用该端口。
HBase HQuorumPeer 3888 hbase.zookeeper.leaderport HBase-managed ZK mode,使用独立的ZooKeeper集群则不会启用该端口。
Hive Metastore 9083 /etc/default/hive-metastore中export PORT=<port>来更新默认端口
Hive HiveServer 10000 /etc/hive/conf/hive-env.sh中export HIVE_SERVER2_THRIFT_PORT=<port>来更新默认端口
ZooKeeper Server 2181 /etc/zookeeper/conf/zoo.cfg中clientPort=<port> 对客户端提供服务的端口
ZooKeeper Server 2888 /etc/zookeeper/conf/zoo.cfg中server.x=[hostname]:nnnnn[:nnnnn],标蓝部分 follower用来连接到leader,只在leader上监听该端口。
ZooKeeper Server 3888 /etc/zookeeper/conf/zoo.cfg中server.x=[hostname]:nnnnn[:nnnnn],标蓝部分 用于leader选举的。只在electionAlg是1,2或3(默认)时需要。


对于存在Web UI(HTTP服务)的所有hadoop daemon,有如下url:


允许你设定log4j的日志记录级别,类似于hadoop daemonlog

所有线程的stack trace,对于debug很有帮助


/jmx?get=MXBeanName::AttributeName 查询指定bean指定属性的值,例如/jmx?get=Hadoop:service=NameNode,name=NameNodeInfo::ClusterId会返回ClusterId。








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