I haven't tried it (EDIT: it = cassandra), but what's wrong with Logstash + ElasticSearch? You get a lot out of the box with Logstash, and you could always push

I haven't tried it (EDIT: it = cassandra), but what's wrong with Logstash + ElasticSearch? You get a lot out of the box with Logstash, and you could always push the community to build a Cassandra output plugin (or build it yourself) if you have serious reasons for Cassandra vs. ElasticSearch. Though Kibana is a great interface for log searching and is designed to interface with ES.