When comparing Graylog2 vs ODE, the Slant community recommends Graylog2 for most people. In the question“What are the best log management, aggregation & monitoring tools?” Graylog2 is ranked 7th while ODE is ranked 35th. The most important reason people chose Graylog2 is:
Graylog2 is licensed under GNU GPL v3.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open source
Graylog2 is licensed under GNU GPL v3.
Pro Easy setup
Graylog2 can be quickly installed on any Linux machine running Java 7 via an executable that allows installing and configuring remote dependencies and graylog2 itself via a web interface.
Pro Real-time
Information and statistics displayed update in real time.
Pro Great interface
Easy to overview, intuitive and full of explainers.
Pro Little maintenance
Pro Streams allow identifying events in real-time and perform actions
Stream allow filtering events in real time and perform action such as issue alerts or forward messages.
Pro Server-side functionality can be extended via plug-ins
Pro Works well with just about any type of logging
Pro Scales easily
ODE instances are independent of each other, so they don't have to worry about a peer being added/removed. This allows the cluster to grow without any performance hit on the log aggregation. There is no redundancy built-in, but you can always use the forwarder to duplicate data. There is no sharding configuration or any other penalty that comes up with scaling a cluster. The clustering configuration is also very easy where you just list out peers for one of the node in order for it to run a search query on the whole cluster and merge the results. Scales better than any other open source log management tool out there.
Pro Add new parsers as you like
You can add any parser you want to ODE.
Pro Highly customizable
Pro Easy to use
Cons
Con Limited logging protocols support
Graylog2 only has support for syslog and GELF.
Con Self hosted. Difficult to maintain.
Maintenance is very difficult because of the high volume nature of logs.
Con Slow
Takes multiple servers even for smaller deployments
Con Interface is hard to use
The interface is hard to use, loaded with data, and difficult to understand.
Con Still in beta
Opallios ODE seems to be still in beta, as such there may be issues or missing features which are not yet implemented.
