hadoop相关端口说明

http相关端口：

Daemon Default Port Configuration Parameter

HDFS	Namenode	50070	dfs.http.address
Datanodes	50075	dfs.datanode.http.address
Secondarynamenode	50090	dfs.secondary.http.address
Backup/Checkpoint node❋	50105	dfs.backup.http.address
MapReduce	Jobracker	50030	mapred.job.tracker.http.address
Tasktrackers	50060	mapred.task.tracker.http.address
❋ Replaces secondarynamenode in 0.21.

 

 

hadoop相关进程服务端口：

Daemon Default Port Configuration Parameter Protocol Used for

Namenode	8020	fs.default.name①	IPC: ClientProtocol	Filesystem metadata operations.
Datanode	50010	dfs.datanode.address	Custom Hadoop Xceiver: DataNodeand DFSClient	DFS data transfer
Datanode	50020	dfs.datanode.ipc.address	IPC:InterDatanodeProtocol,ClientDatanodeProtocol ClientProtocol	Block metadata operations and recovery
Backupnode	50100	dfs.backup.address	Same as namenode	HDFS Metadata Operations
Jobtracker	Ill-defined.②	mapred.job.tracker	IPC:JobSubmissionProtocol,InterTrackerProtocol	Job submission, task tracker heartbeats.
Tasktracker	127.0.0.1:0 ③	mapred.task.tracker.report.address	IPC:TaskUmbilicalProtocol	Communicating with child jobs
① This is the port part of hdfs://host:8020/. ② Default is not well-defined. Common values are 8021, 9001, or 8012. See MAPREDUCE-566. ③ Binds to an unused local port.

 

摘录：http://www.cloudera.com/blog/2009/08/hadoop-default-ports-quick-reference/

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