# The progress of execution changed from high to low in the search operation

**URL:** <https://discuss.elastic.co/t/the-progress-of-execution-changed-from-high-to-low-in-the-search-operation/143281>\
**Category:** Elasticsearch\
**Tags:** rally\
**Created:** [August 7, 2018, 8:28am UTC](https://discuss.elastic.co/t/the-progress-of-execution-changed-from-high-to-low-in-the-search-operation/143281 "2018-08-07T08:28:06Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![rui\_dong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rui_dong/32/42082_2.png) [@rui\_dong](https://discuss.elastic.co/u/rui_dong)\
**Post date:** [August 7, 2018, 8:28am UTC](https://discuss.elastic.co/t/the-progress-of-execution-changed-from-high-to-low-in-the-search-operation/143281/1 "2018-08-07T08:28:06Z")

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I'm going to test the search performance of an index

```
  "schedule": [
{
  "operation": {
"name":"N clients randomly query 10,000 data",
"operation-type": "search",
    "param-source": "randomly-query"
  },
  "warmup-iterations": 20,
  "iterations": 500,
  "target-throughput": 200,
  "clients":40
}
]

```

The execution progress becomes lower In the search operation, like this:  
50% done -\> 47% done -\> 52% done ...

Finally, rally terminates with the following error

```
 73% done]
 [ERROR] Cannot race. Load generator [%d] has exited prematurely.
```

---

<div class="post-metadata">

**Author:** ![dliappis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dliappis/32/56174_2.png) [@dliappis](https://discuss.elastic.co/u/dliappis)\
**Post date:** [August 7, 2018, 9:21am UTC](https://discuss.elastic.co/t/the-progress-of-execution-changed-from-high-to-low-in-the-search-operation/143281/2 "2018-08-07T09:21:39Z")

</div>

Is this related to [The number of clients in search operation](https://discuss.elastic.co/t/the-number-of-clients-in-search-operation/143255)? If yes, would you consider closing this, so that we can focus on the other ticket? Thanks.

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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:** [September 4, 2018, 10:54am UTC](https://discuss.elastic.co/t/the-progress-of-execution-changed-from-high-to-low-in-the-search-operation/143281/4 "2018-09-04T10:54:16Z")

</div>

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