# Rally op\_metrics throughput is null

**URL:** <https://discuss.elastic.co/t/rally-op-metrics-throughput-is-null/341667>\
**Category:** Elasticsearch\
**Tags:** rally\
**Created:** [August 25, 2023, 8:48am UTC](https://discuss.elastic.co/t/rally-op-metrics-throughput-is-null/341667 "2023-08-25T08:48:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hyt](https://avatars.discourse-cdn.com/v4/letter/h/f08c70/32.png) [@hyt](https://discuss.elastic.co/u/hyt)\
**Post date:** [August 25, 2023, 8:48am UTC](https://discuss.elastic.co/t/rally-op-metrics-throughput-is-null/341667/1 "2023-08-25T08:48:44Z")

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es: 7.17.9  
rally: 2.6.0 and 2.8.0  
python: 3.8  
cmd:  
esrally race --track=http\_logs --target-hosts=172.20.236.173:9200 --pipeline=benchmark-only --kill-running-processes --track-params=rally\_params.json --offline  
track：http\_logs  
Anomalous phenomenon :  
index-append client is 8 , everything is normal  
index-append client is 16，the result of index-append is null  
{  
"task": "index-append",  
"operation": "index-append",  
"throughput": {  
"min": null,  
"mean": null,  
"median": null,  
"max": null,  
"unit": "docs/s"  
},  
"latency": {},  
"service\_time": {},  
"processing\_time": {},  
"error\_rate": 0.0,  
"duration": 225703.49534900743  
}

---

<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 22, 2023, 8:49am UTC](https://discuss.elastic.co/t/rally-op-metrics-throughput-is-null/341667/2 "2023-09-22T08:49:45Z")

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