When comparing Rocana vs Scribe, the Slant community recommends Scribe for most people. In the question“What are the best log management, aggregation & monitoring tools?” Scribe is ranked 13th while Rocana is ranked 15th. The most important reason people chose Scribe is:
Scribe uses Thrift for its protocol encoding so it's compatible with pretty much any language you want to use with it.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great "out-of-the-box" analytics
Beyond simple rules-based alerting, Rocana Ops creates statistical models for each of the metrics you want to track and evaluates as data streams in to provide nearly instantaneous feedback on how your systems are performing. Unique WARN (Weighted Analytic Risk Notifications) Scores indicate components that are trending to the good or bad. Users can create custom metrics, which get evaluated just the same as "out-of-the-box" metrics.
Pro Highly scalable
Collect and analyze multiple TBs of data per day, built on Hadoop components Rocana Ops is a highly-distributed system offering massive scalability using commodity hardware. Rocana has customers collecting 10+ TBs of log data per day.
Rocana One free option provides up to 1TB of daily data volume for free.
Pro Works with pretty much any language
Scribe uses Thrift for its protocol encoding so it's compatible with pretty much any language you want to use with it.
Pro Free and open source
Licensed under the Apache 2.0.
Cons
Con Expensive
Appears to be an expensive solution.
Con Doesn't run on a laptop
Well, maybe you can squeeze Rocana Ops on a laptop, but it is designed as a highly-distributed, fault-tolerant system and requires a Hadoop distro as the underlying platform.
Con No longer supported
Scribe has been abandoned and is no longer supported by Facebook. This means that it's no longer possible to submit pull requests or to open issues.