Deploy your ssh key to one or more remote hosts. Can be done in parallel for high performance with many hosts.
Ingest log files into Graphite for visualization. This differs from the etsy logster because it does not have to be done in real time -- ingestion of old logs is supported.
Quick-and-dirty shell scripts to feed OS-level system performance metrics (CPU, network use, etc.) into Graphite where they can be visualized.
Test tool. Creates high-performance mechanism where multiple threads can safely read from the same data file. Supports random and sequential reads. Remembers last read location between runs.