What are default ports in Hadoop?

What are default ports in Hadoop?

Asked on March 12, 2017 in Hadoop.
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NameNode: 50070
Secondary NameNode: 50090
DataNode: 50010
JobTracker: 50030
TaskTracker: 50060
Spark UI: 4040

Answered on March 12, 2017.
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Hadoop’s namenode and datanodes expose a bunch of TCP ports used by Hadoop’s daemons to communicate to each other or listen directly to users’ requests. These ports information are needed by both the Hadoop users and cluster administrators to write programs or configure firewalls/gateways accordingly.

    • Namenode 50070

 

    • Datanodes 50075

 

    • Secondarynamenode 50090

 

    • Backup/Checkpoint node 50105

 

    • Jobracker 50030

 

    • Tasktrackers 50060

 

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Answered on April 17, 2018.
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