When comparing Papertrail vs Fluentd, the Slant community recommends Fluentd for most people. In the question“What are the best log management, aggregation & monitoring tools?” Fluentd is ranked 4th while Papertrail is ranked 5th. The most important reason people chose Fluentd is:
Gives structure to unstructured logs.
Specs
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Pros
Pro Easy set-up process
To set Papertrail up, use NXLog, or simply direct logs to a URL provided by Papertrail. No proprietary agent.
Pro Simple interface
The default view is mostly taken up by log events with a small row at the bottom for entering a search query, setting date range, accessing saved searches and enabling or disabling real-time logging.
Pro Event and search updates can be viewed in real-time
By default log events and searches in Papertrail are updated in real-time.
Pro Logs can be colorized via third-party software
Logs can be colorized by installing Stylish, a browser extension for Chrome and Firefox that overrides CSS stylesheets, and writing a custom stylesheet.
Papertrail's log entries have various attributes that can be used to change css properties for specific programs or systems, or based on message contents.
Logs can also be colorized within the actual logs by adding ANSI escape codes (will override user-specific colorization).
Pro Logs everything in JSON
Gives structure to unstructured logs.
Pro Logs stored to FS buffer while network is down
Logs aren't lost due to network issues.
Pro In-stream processing
With a list of 150+ plugins, Fluentd can perform all kinds of in-stream data processing tasks.
Pro Huge plugin ecosystem
Fluentd has a plugin ecosystem that has resulted in developers creating over 150 plugins for the service.
Pro Prioritizes simplicity and robustness
For example, inputs and outputs have built-in support for buffering, load-balancing, timeouts and retries so to be able to deliver data reliably.
Pro Free and open source
Licensed under Apache 2.0.
Pro Routing based on tags
Pro Exponential retry wait
Pro Copy to multiple storages
Pro Based on CRuby
Cons
Con Expensive
Averages out at $8/GB/mo, which feels exorbitant.
Con Ridiculous free plan
Unfortunately, compared with other competitors, their free plan comes with only 50MB/month.
Con No built-in graphing
Papertrail can integrate with Librato Metrics and StatHat to graph event occurrence count over time, but there's no built-in way to visualize data.
Con Antiquated interface
The interface is simple, yet it is slow and hard to work with.
Con Difficult to setup
Requires a significant time investment to get up and running.