It is now the 7th of July, 2014. The article's version numbers are now somewhat out of date. The working versions I have found are as follows:
MongoDB v2.4.9 (current installation of mongodb, this was the driving force in choosing the others)
ElasticSearch v1.1.1
ElasticSearchMapperAttachments v2.0.0
ElasticSearchRiverMongoDb/2.0.0
It is now the 7th of July, 2014. The article's version numbers are now somewhat out of date. The working versions I have found are as follows:
MongoDB v2.4.9 (current installation of mongodb, this was the driving force in choosing the others)
ElasticSearch v1.1.1
ElasticSearchMapperAttachments v2.0.0
ElasticSearchRiverMongoDb/2.0.0