a go daemon that syncs mongodb to elasticsearch in realtime

• Supports up to and including the latest versions of Elasticsearch and MongoDB

• Single binary with a light footprint

• Optionally filter the set of collections to sync

• Advanced support for sharded MongoDB clusters including auto-detection of new shards

• Direct read mode to do a full sync of collections in addition to tailing the oplog

• Transform and filter documents before indexing using Golang plugins or JavaScript

• Index the content of GridFS files

• Support for hard and soft deletes in MongoDB

• Support for propogating database and collection drops

• Optional custom document routing in Elasticsearch

• Stateful resume feature

• Worker and Clustering modes for High Availability

• Support for rfc7396 JSON merge patches

• Systemd support

• Optional http server to get access to liveness, stats, etc

See the monstache site for information on configuration and usage.