#::brumheadar
Measure the performance of your NoSql Distributed Database.
This tool can be used to determine the performance of your JSON based NOSQL database on a given platform. A primary usecase of it would to compare and contrast the performance of a given databases (or databases) on different PaaS providers with a view to choosing the right PaaS solution to host the intended highly load DB.
To analyse the metrics it uses statsD to output the timings of each operation.
Supported Databases:
- Elasticsearch
These environment variables should be set.
* DEBUG_LEVEL - //trace|info|warn|debug
* STATSD_HOST
* STATSD_PORT
* ES_HOST
* ES_PORT
* SCHEMA_DIR
Most of those env vars should be self explanatory besides the SCHEMA_DIR
From /lib/common/config.js the SCHEMA_DIR should be local to the root of the repo. (as the app searches in process.cwd()/SCHEMA_DIR)
for this directory structure
/
elasticsearch/
x_mappings.json
y_mappings.json
z_mappings.json
weightings.json
The weightings.json should be in this format, always adding up to 1 (or there or there abouts!)
{
x : 0.33,
y : 0.33,
z : 0.33
}
In order to attempt to replicate real world scenarios please provide a compatible schema for each database that you want The load testing will try to simulate traffic that reflects those weightings.
You should copy the schemata for each supported database to the relevant folder. This Json should be the exact mappings that es autogenerates per type.
Installing elasticsearch locally may need the murmur3 plugin for MacOS running ES under brew this should be something like
sudo /usr/local/Cellar/elasticsearch/2.3.2/libexec/bin/plugin install mapper-murmur3