From the homepage:
Store
- Data is stored exactly as you give it
- Write with millisecond precision
- Keep raw data forever
Scale
- Runs on Hadoop and HBase
- Scales to millions of writes per second
- Add capacity by adding nodes
Read
- Generate graphs from the GUI
- Pull from the HTTP API
- Choose an open source front-end
If that isn’t impressive enough, check out the features added for the 2.0 release:
OpenTSDB has a thriving community who contributed and requested a number of new features. 2.0 has the following new features:
- Lock-less UID Assignment – Drastically improves write speed when storing new metrics, tag names, or values
- Restful API – Provides access to all of OpenTSDB’s features as well as offering new options, defaulting to JSON
- Cross Origin Resource Sharing – For the API so you can make AJAX calls easily
- Store Data Via HTTP – Write data points over HTTP as an alternative to Telnet
- Configuration File – A key/value file shared by the TSD and command line tools
- Pluggable Serializers – Enable different inputs and outputs for the API
- Annotations – Record meta data about specific time series or data points
- Meta Data – Record meta data for each time series, metrics, tag names, or values
- Trees – Flatten metric and tag combinations into a single name for navigation or usage with different tools
- Search Plugins – Send meta data to search engines to delve into your data and figure out what’s in your database
- Real-Time Publishing Plugin – Send data to external systems as they arrive to your TSD
- Ingest Plugins – Accept data points in different formats
- Millisecond Resolution – Optionally store data with millisecond precision
- Variable Length Encoding – Use less storage space for smaller integer values
- Non-Interpolating Aggregation Functions – For situations where you require raw data
- Rate Counter Calculations – Handle roll-over and anomaly supression
- Additional Statistics – Including the number of UIDs assigned and available
I suppose traffic patterns (license plates) are a form of time series data. Yes?