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The Aspire Web HDFS publisher was created and tested using version XX.
Before installing the Web HDFS publisher, make sure that:
In order to access Web HDFS an user account with sufficient privileges must be supplied. It is recommended the account be the site administrator.
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The WebHDFS feature must be enabled in order to use this publisher.
Granting READ permissions is a must since the connector won't be able to get any data if the Path to be crawled is restricted.
For Kerberized Clusters, a delegation token is required in order to crawl any path within the HDFS. To obtain this token you must:
Run:
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$ kinit <your-user-principal>
$ curl -i --negotiate -u : "http://<host>:<port>/webhdfs/v1/?op=GETDELEGATIONTOKEN"
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{"Token":{"urlString":"<A-VERY-LONG-TOKEN>"}} |
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