# Delete data in Elasticsearch(6.4.1) cluster is very slow

**URL:** <https://discuss.elastic.co/t/delete-data-in-elasticsearch-6-4-1-cluster-is-very-slow/149081>\
**Category:** Elasticsearch\
**Created:** [September 19, 2018, 8:36am UTC](https://discuss.elastic.co/t/delete-data-in-elasticsearch-6-4-1-cluster-is-very-slow/149081 "2018-09-19T08:36:30Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Chunbo\_Liao](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/chunbo_liao/32/48172_2.png) [@Chunbo\_Liao](https://discuss.elastic.co/u/Chunbo_Liao)\
**Post date:** [September 19, 2018, 8:36am UTC](https://discuss.elastic.co/t/delete-data-in-elasticsearch-6-4-1-cluster-is-very-slow/149081/1 "2018-09-19T08:36:30Z")

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Hi,

I used python script to delete the data in Elasticsearch cluster(5 nodes). the speed is very slow, only 5K/s.  
my script code is:

#!/usr/bin/python  
from elasticsearch import Elasticsearch  
import sys  
import time

class ElasticSearchClient(object):  
@staticmethod  
def get\_es\_servers():  
es\_servers = [{  
"host": "localhost",  
"port": "9200"  
}]  
es\_client = Elasticsearch(hosts=es\_servers)  
return es\_client

class LoadElasticSearch(object):  
def **init** (self):  
self.index = "logmonster"  
self.es\_client = ElasticSearchClient.get\_es\_servers()

```
def delete_by_casename(self, caseName):
    query = {"query":{"match": {"CaseName": {"query":'"'+caseName+'"',"operator": "and"}}}}
    return self.es_client.delete_by_query(index='logmonster',body=query,conflicts='proceed',request_timeout=500)

def main(self):
    result = self.delete_by_case_mme(CASE_NAME, MME_NAME)
    print(result)

```

if **name** == ' **main**':  
load\_es = LoadElasticSearch()  
load\_es.main()

what can I do so that I can promote the delete speed?

BR  
Liao Chunbo

---

<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:** [October 17, 2018, 8:36am UTC](https://discuss.elastic.co/t/delete-data-in-elasticsearch-6-4-1-cluster-is-very-slow/149081/2 "2018-10-17T08:36:35Z")

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