From HN comment "Our centralized logging system at Semantics3 ( https://semantics3.com) is built using Logstash+Kibana+Rsyslog+ElasticSearch. Running off a single EC2 large instance it has been been able to seamlessly aggregate and process logs from about 200-300 instances, processing on average of about 15 GB of log data. We hit some performance bottlenecks (particularly with elasticsearch) when our number of instances went beyond the 300 mark. But that should get fixed once we shard and distribute ElasticSearch. Looking forward to some really tight integration between the Logstash, ES and Kibana." from:Windows_Phone B2B SaaS freemium APIs ecommerce pricey monthly #elasticsearch #web_development #development #pub