According to Deprecating Rivers, river is not supported any more.
Mongo River
http://backslash451.github.io/articles/Running-ElasticSearch-with-MongoDB-and-Kibana/
Buy a mongodb on QingCloud.
Connect to database with
mongo 119.254.211.28:15515 --authenticationDatabase admin -u root -p nodeJS@2015.
and run rs.status() to verify the replica set is working.
Setup Elasticsearch
See note "Elasticsearch Notes".
Setup Kibana
See note "Kibana Notes".
Install River Plugin
Follow ichardwilly98/elasticsearch-river-mongodb.
Run bin/plugin install com.github.richardwilly98.elasticsearch/elasticsearch-river-mongodb/2.0.9
at $ES_HOME.
List plugins: bin/plugin list.
Get help: bin/plugin -h.
When install in 2.0.0, there is an error:
ERROR: Could not find plugin descriptor 'plugin-descriptor.properties' in plugin zip.
For now, use elasticsearch 1.7.3 with river.
List plugins in v1.7.3: sudo /usr/share/elasticsearch/bin/plugin --list.