Flume OG 与 Flume NG 的对比

Flume NG is a huge departure from Flume OG (original generation, or "original gangsta," if you prefer) in its implementation although many of the original concepts are the same. If you're already familiar with Flume, here's what you need to know.

• You still have sources and sinks and they still do the same thing. They are now connected by channels.
• Channels are pluggable and dictate durability. Flume NG ships with an in-memory channel for fast, but non-durable event delivery and a JDBC-based channel for durable event delivery. We have recently added a file-based durable channel too.
• There's no more logical or physical nodes. We call all physical nodes agents and agents can run zero or more sources and sinks.
• There's no master and no ZooKeeper dependency anymore. At this time, Flume runs with a simple file-based configuration system.
• Just about everything is a plugin, some end user facing, some for tool and system developers. (Specifically, sources, sinks, channels, configuration providers, lifecycle management policies, input and output formats, compression, source and sink channel adapters, and the kitchen sink.)
• Tons of things are not yet implemented. Please file  JIRAs and / or vote for features you deem important.