CODEWITHSUNDEEP
hadoophadoop-streaminghadoop-partitioning
AlexAnand
AlexAnand

Reputation: 169

hadoop command to find namenode in a node

I tried

Steps

- Login into particular node
- and execute the command jps

Result

5144 JobTracker
4953 NameNode
5079 SecondaryNameNode
5216 Jps

this is working fine, but I what know any other command to find namenode in a node

Upvotes: 0

Views: 8800

Answers (3)

Nitin Singh
Nitin Singh

Reputation: 76

Information about Namenode, Datanode and Secondary Namenode processes can be seen using the command:

ps -fu hdfs

Information about ResourceManager, NodeManager processes can be seen using the command:

ps -fu yarn

Upvotes: 1

zhutoulala
zhutoulala

Reputation: 4832

First of all, trying to find the Namenode process should be the first choice. The other ways that might work could be:

  1. Try to check if the 50070 port (Namenode web UI) is opened to listen:

    netstat -a | egrep 'Proto|LISTEN' | grep 50070

  2. Look into the Namenode settings in hdfs-site.xml under $HADOOP_CONF_DIR

Upvotes: 0

pranaygoyal02
pranaygoyal02

Reputation: 191

You could use the command : ps -ef |grep Namenode

to see the namenode process .This would let you know if a particular java process namenode is running.

Upvotes: 0

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