Fluentd - Fluentd is a cross platform open source data collection solution originally developed at Treasure Data.
Talend Open Studio - Connect to any data source in batch or real-time, across any platform. Download Talend Open Studio today to start working with Hadoop and NoSQL.
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
Singer - Simple, Composable, Open Source ETL
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.