Specify i.e shard_count, clients etc outside track.json

[JohanRask]

Hi,

First, thanks for an awesome product, it is really helping us alot!!

I am using the rally-eventdata-track repository and I can see that there are a lot of things specified in track.json that I would like to specify from command line or as environment variable (or some other way...), is this possible?

something like

esrally -E shard_count=2

This would allow me to i.e run the benchmarks with different values after each other.

{# Maximum number of indexing threads to use #}
{% set clients = 20 %}

{# Rate limit steps (ops) for combined indexing and querying #}
{% set rate_limit_ops = [2,4,6,8,10,12,14,16,18,20,22,24,26,28,30] %}

{# Duration of each rate limited indexing and querying benchmark in seconds #}
{% set rate_limit_duration_secs = 1200 %}

{# Number of primary shards and replicas to index into #}
{% set shard_count = 2 %}
{% set replica_count = 0 %}

{% set shard_sizing_iterations = 25 %}
{% set shard_sizing_queries = 20 %}

Regards /Johan

[danielmitterdorfer]

Hi @JohanRask,

thanks, great to hear that Rally is helping you.

It is not yet possible to specify track parameters on the command line but it is already on our roadmap and currently planned for the 0.8.x release series: See https://github.com/elastic/rally/issues/310 for details.

Daniel

[JohanRask]

Perfect, thanks!