# ESrally challenge configuration

**URL:** <https://discuss.elastic.co/t/esrally-challenge-configuration/211939>\
**Category:** Elasticsearch\
**Tags:** rally\
**Created:** [December 16, 2019, 4:53am UTC](https://discuss.elastic.co/t/esrally-challenge-configuration/211939 "2019-12-16T04:53:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kinlee](https://avatars.discourse-cdn.com/v4/letter/k/838e76/32.png) [@kinlee](https://discuss.elastic.co/u/kinlee)\
**Post date:** [December 16, 2019, 4:53am UTC](https://discuss.elastic.co/t/esrally-challenge-configuration/211939/1 "2019-12-16T04:53:57Z")

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```
     "operation": "phrase",
      "clients": 1,
      "warmup-iterations": 500,
      "iterations": 200,
      "target-throughput": 20

```

What happens when I increase those values? Can some please help me understand what this config worth changing. for supposing what if I change the value of clients from 1 to 2. What exactly I am expecting with this config changed.  
Thanking you.

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<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [December 16, 2019, 6:11am UTC](https://discuss.elastic.co/t/esrally-challenge-configuration/211939/2 "2019-12-16T06:11:39Z")

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Hi,

please see the [reference documentation](https://esrally.readthedocs.io/en/stable/track.html) for a detailed description of each of these values.

Daniel

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 13, 2020, 6:11am UTC](https://discuss.elastic.co/t/esrally-challenge-configuration/211939/3 "2020-01-13T06:11:47Z")

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