# ElasticSearch Cluster Settings Tuneup
**URL:** https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260
**Category:** Elasticsearch
**Created:** [October 15, 2015, 11:11am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260 "2015-10-15T11:11:44Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@moni15moni](https://discuss.elastic.co/u/moni15moni)
#### Post date: [October 15, 2015, 11:11am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260/1 "2015-10-15T11:11:44Z")
Hi ,
I have maintain a ES Cluster with 10 Boxes each with 24 CPUS and 64 GB memory with separate master nodes.Per day we have written 4 Billion docs about 2 TB of Storage .
We have create a index with 30 shards.i have mentioned below the index settings.If any ware we have to tune the cluster settings.we have a huge bulk indexing and less queries.Still cluster not getting stable.
Any one will suggest the following settings.
In Bulk Writing environment , Do we have to change any other cluster settings ? Here we are using Spinner Disks.
Right now we are running in elasticsearch 1.5.2 Version
Thanks in the advance.
```
"settings" : {
"number_of_shards" : 30,
"number_of_replicas": 0,
"index.store.compress.stored":"true",
"index.store.compress.tv":"true",
"compress.default.type":"snappy",
"index.query.default_field":"oplog",
"refresh_interval" : -1,
"index.merge.policy.max_merge_at_once":10,
"index.translog.flush_threshold_size": "2147483648",
"index.translog.interval": "30s",
"index.store.type":"mmapfs"
```
* * *
* * *
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}
Thanks
Moni
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [October 15, 2015, 8:25pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260/2 "2015-10-15T20:25:46Z")
> [@moni15moni](#):
>
> a index with 30 shards
That's too many, you should reduce that to stop resource wastage.
---
### Author:  [@moni15moni](https://discuss.elastic.co/u/moni15moni)
#### Post date: [October 19, 2015, 7:03am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260/3 "2015-10-19T07:03:02Z")
Thanks Mark for your reply
But one more thing in a particular index we have to store 50 - 60 Billion Docs .So we have required minimum no of 30 shards.So you are saying we have to use multiple indexes or any other suggestions.
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [October 19, 2015, 8:23pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260/4 "2015-10-19T20:23:10Z")
Oh right, then you're not going to be able to get around that anyway.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 11:43pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-settings-tuneup/32260/5 "2017-07-05T23:43:59Z")