411 vs ElastAlert: What are the differences?
411: An Alert Management Web Application, by Etsy. Configure Searches to periodically run against a variety of data sources. You can define a custom pipeline of Filters to manipulate any generated Alerts and forward them to multiple Targets. Review and manage Alerts through the web interface. You can apply Renderers to alerts to enrich them with additional metadata; ElastAlert: Easy & Flexible Alerting With ElasticSearch. A simple framework for alerting on anomalies, spikes, or other patterns of interest from data in Elasticsearch.
411 and ElastAlert belong to "Monitoring Tools" category of the tech stack.
411 and ElastAlert are both open source tools. It seems that ElastAlert with 5.92K GitHub stars and 1.26K forks on GitHub has more adoption than 411 with 862 GitHub stars and 98 GitHub forks.