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hdfs-tachyon-file-browser

Restful service for browsing files from HDFS or Tachyon.

Building the file browser

You need to have maven installed. To build, follow the steps below:

cd hdfs-tachyon-file-browser/
mvn clean install -DskipTests
cd target
tar -zxvf hdfs-tachyon-file-browser.tar.gz

Configure the file browser

To configure the hdfs-tachyon-file-browser you have to edit the following files inside the conf folder.

* application.conf: Contains all the application configurations.
* log4j.properties : Used for configuring the logger

The application.conf file contains two configurations: one for tunning spray (spray.can.server) and one for setting application preferences (appConf). You will find more details for each property inside the file.

Run the file browser

After editing all the configuration files, run the file browser in the following manner:

1. go where you decompressed the tar.gz file:
   cd hdfs-tachyon-file-browser/
2. run:
   nohup bin/start-file-browser.sh &

Apis

Verify that the file browser is up

curl 'devbox.local:8181/file-browser/index' -X GET

Results: You will receive the following confirmation message that the hdfs-tachyon-file-browser is up and running:

"File browser is up and running!"

List files

curl 'http://devbox.local:8181/file-browser/listFiles?routePath=tachyon://devbox.local:19998/user/ubuntu' -X GET

curl 'http://devbox.local:8181/file-browser/listFiles?routePath=hdfs://devbox.local:19998/user/ubuntu' -X GET

Parameters:

• routePath [required] : the path to the hdfs/tachyon folder you want to list the files for

Results:

The api returns the list of subfolders and files for the provided directory. For each entry, there is a "isFolder" flag to specify if the entry is a folder or a file.

Exemple:

{
  "parentPath": "/user/ubuntu",
  "files": [{
    "name": "folder1",
    "isFolder": true
  }, {
    "name": "folder2",
    "isFolder": true
  }, {
    "name": "file1",
    "isFolder": false
  }]
}