node.js v0.6.11 compatibility (February 27, 2012)
After numerous community requests, we're finally happy to announce compatibility with node.js v0.6.11. Until recently, the socket.io-client library had handshake issues with node.js v0.6.x, which has now been resolved thanks to the use of a new websocket library.
We've also switched out the famfamfam icons for P.J. Onori's Iconic icon set. Aesthetic vanity aside, there are two new features on the roadmap that will be added as dev time permits.
We've built & tested Log.io v0.2.5 on Ubuntu 11.10, here's the latest build recipe if you need one.
Dependencies
- node.js (>=0.4.12 <=0.6.11)
- socket.io (0.9.0)
- socket.io-client (0.9.0)
- forever (0.8.2)
- connect.js (>=1.7.1)
- underscore.js (>=1.1.7)
Install log server on machine A
1. Install via npm
2. Launch server
3. Browse to:
Install log harvester on machine B
1. Install via npm
2. Configure harvester (optional; /etc/log.io/harvester.conf)
3. Launch harvester
Why do you need Log.io?
Your infrastructure has hundreds of log files spread across dozens of machines. For monitoring deployments and troubleshooting, you need to instantly see composite streams of log messages in a single user interface.
How does Log.io work?
Harvesters watch log files for changes, send new log messages to the server, which broadcasts to web clients. Users create stream and history screens to view and search log messages.
Low latency, no persistence
Log.io has no persistence layer. Harvesters are informed of file changes via inotify, and log messages hop from harvester to server to web client via socket.io. The result is fast; internal benchmarks have exceeded 5000 messages/sec.
Create ad hoc log streams
Users can instantly combine log files across multiple machines into a single stream or view the last 1000 lines of any watched file. Users can also search & traverse logs via regex queries.
Bandwidth conservation
Server and harvesters will only transmit over the wire if a web client is asking for log data. This improves UI performance while reducing bandwidth consumption.
Compatibility
Web client has been tested in Chrome, Safari, and Firefox. Harvester & Server have been tested on Ubuntu 11.10.
Want to contribute?
Here are some features we've been considering:
Richer UI interactions. Grep & awk log streams, minimize screens, hide & group machine clusters.
Visualizations. Sparklines for log files & machines, custom activity graphs.
URL bookmarks. Update URL when building streams for easy bookmarking.
Mobile, dashboard displays. UI support for iOS & Android, large monitors.
More stream colors. So far we've only got 10. Lend us your palettes!
What is Log.io NOT?
Log.io was designed specifically for live monitoring of log files. It is not intended to operate on any other input sources beside files. It is not intended to store, archive or index log messages, nor is it intended for historical or aggregate analysis.
Other log monitoring tools:
loggly.com
logstash.net
Otros Log Viewer
