SOLR-4735 provided implementations for these reporters (wrappers for Dropwizard components to use SolrMetricReporter API).
However, this functionality has been split into its own issue due to the additional transitive dependencies that these reporters bring:
- metrics-ganglia, ASL, 3kB
- gmetric4j (Ganglia RPC implementation), BSD, 29kB
- metrics-graphite, ASL, 10kB
- amqp-client (RabbitMQ Java client, marked optional in pom?), ASL/MIT/GPL2, 190kB
IMHO these are not very large dependencies, and given the useful functionality they provide it's worth adding them.