apache flume configuration

Apache Flume is configured using a configuration file, typically named flume.conf. This file contains various parameters that control the behavior of the Flume agent, including the sources, channels, sinks, and routing rules.

Here is an example configuration file for Apache Flume:

# Define the sources
agent.sources = source1
agent.sources.source1.type = netcat
agent.sources.source1.bind = localhost
agent.sources.source1.port = 44444

# Define the channels
agent.channels = channel1
agent.channels.channel1.type = memory
agent.channels.channel1.capacity = 10000
agent.channels.channel1.transactionCapacity = 1000

# Define the sinks
agent.sinks = sink1
agent.sinks.sink1.type = hdfs
agent.sinks.sink1.hdfs.path = /user/flume/data
agent.sinks.sink1.hdfs.filePrefix = events
agent.sinks.sink1.hdfs.rollInterval = 300

# Define the routing rules
agent.sources.source1.channels = channel1
agent.sinks.sink1.channel = channel1

In this example, we have defined a netcat source that listens on port 44444, a memory channel with a capacity of 10000 events, and an HDFS sink that writes data to the /user/flume/data directory in HDFS. We have also defined the routing rules to connect the source to the channel and the channel to the sink.

To configure Flume, you can modify the parameters in the configuration file to suit your specific requirements. Once you have modified the configuration file, you can start the Flume agent by running the following command:

bin/flume-ng agent -n agent -c conf -f /path/to/flume.conf

This command starts the Flume agent with the name 'agent' and loads the configuration file located at /path/to/flume.conf.