michele.artini
/
dnet-hadoop
forked from D-Net/dnet-hadoop
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
dnet-hadoop/dhp-workflows/dhp-aggregation
History
Michele Artini fd57722c69 Merge branch 'master' of code-repo.d4science.org:D-Net/dnet-hadoop 2020-03-25 15:56:49 +01:00
..
src Merge branch 'master' of code-repo.d4science.org:D-Net/dnet-hadoop 2020-03-25 15:56:49 +01:00
README.md dhp-collection-worker integrated in dhp-workflows 2019-10-24 11:36:59 +02:00
pom.xml added workflow to migrate latest version of each actionset content from DM to OCEAN cluster, mapping the targetValues from the old protobuf data model to the dhp.OAF datamodel 2020-03-13 15:56:52 +01:00

README.md

Description of the Module

This module defines a collector worker application that runs on Hadoop.

It is responsible for harvesting metadata using different plugins.

The collector worker uses a message queue to inform the progress of the harvesting action (using a message queue for sending ONGOING messages) furthermore, It gives, at the end of the job, some information about the status of the collection i.e Number of records collected(using a message queue for sending REPORT messages).

To work the collection worker need some parameter like:

  • hdfsPath: the path where storing the sequential file
  • apidescriptor: the JSON encoding of the API Descriptor
  • namenode: the Name Node URI
  • userHDFS: the user wich create the hdfs seq file
  • rabbitUser: the user to connect with RabbitMq for messaging
  • rabbitPassWord: the password to connect with RabbitMq for messaging
  • rabbitHost: the host of the RabbitMq server
  • rabbitOngoingQueue: the name of the ongoing queue
  • rabbitReportQueue: the name of the report queue
  • workflowId: the identifier of the dnet Workflow

##Plugins

  • OAI Plugin

Usage

TODO