Here’s the Deal
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When comparing ELSA vs Flume, the Slant community recommends Flume for most people. In the question“What are the best log management, aggregation & monitoring tools?” Flume is ranked 14th while ELSA is ranked 47th.
Specs
Typemonitoring
Typeaggregation
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open source
ELSA is free and open source, released under the GPL license.
Pro Flume is transactional (no lost when duplicating streams), and can be backuped by Kafka
Pro Hadoop integration
Flume was created to efficiently move log data to Apache Hadoop's HDFS.
Pro Free and open source
Licensed under Apache 2.0.
Cons
Con Poor documentation
The project looks already old with a poor documentation and no clear information about the Web UI.
Con Does not work on CentOS
Installation fails on CentOS
Con Hard to manage
Since Flume cannot do multiplex connections, it's extremely hard to manage. It's essentially one socket per log type.