https://github.com/paypal/nnanalytics

NameNodeAnalytics is a self-help utility for scouting and maintaining the namespace of an HDFS instance.
https://github.com/paypal/nnanalytics

fsimage hadoop hdfs metadata namespace scanner utility

Last synced: about 1 year ago
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NameNodeAnalytics is a self-help utility for scouting and maintaining the namespace of an HDFS instance.

• Host: GitHub
• URL: https://github.com/paypal/nnanalytics
• Owner: paypal
• License: apache-2.0
• Created: 2018-05-25T19:51:45.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2024-07-30T18:14:23.000Z (almost 2 years ago)
• Last Synced: 2025-05-09T00:07:41.073Z (about 1 year ago)
• Topics: fsimage, hadoop, hdfs, metadata, namespace, scanner, utility
• Language: Java
• Homepage:
• Size: 2.64 MB
• Stars: 116
• Watchers: 23
• Forks: 72
• Open Issues: 18
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

          
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# 

"A Standby read-only HDFS NameNode, with no RPC server, that services clients over a REST API, utilizes Java 8 Stream API, all for the purpose of performing large and complicated scans of the entire file system metadata for end users."

Run a demo locally and instantly! Just run the following command on a workspace directory:

```

git clone https://github.com/paypal/NNAnalytics.git nna && cd ./nna && ./gradlew -PmainClass=org.apache.hadoop.hdfs.server.namenode.analytics.TestWithMiniClusterWithStreamEngine execute

```

Then go to http://localhost:4567 and you will have an NNA instance complete with a mini HA-enabled HDFS instance all updating in real time on your local machine!

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# Architecture: Legacy vs NNA





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# Documentation & Getting Started

  * [Click here to read the docs](http://nnanalytics.readthedocs.io/)

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# Presentations

  * [SlideShare](https://www2.slideshare.net/PlamenJeliazkov/namenode-analytics-querying-hdfs-namespace-in-real-time)

  * [DataWorks Summit](https://www.youtube.com/watch?v=9xlB5C88tbk)

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