# Data path for multiple nodes on single server **URL:** \ **Category:** Elasticsearch\ **Created:** [February 15, 2019, 11:23am UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569 "2019-02-15T11:23:02Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![SPR0STO](https://avatars.discourse-cdn.com/v4/letter/s/a183cd/32.png) [@SPR0STO](https://discuss.elastic.co/u/SPR0STO)\ **Post date:** [February 15, 2019, 11:23am UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/1 "2019-02-15T11:23:02Z")
Hello I want to the up "Elasticsearch" cluster with multiply nodes (3 or more) on a single server. Can I use for all of my data nodes one directory? : `path.data: /var/lib/elasticsearch` What risks at this case? How need to be done by BestPractise? ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 15, 2019, 11:52am UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/2 "2019-02-15T11:52:44Z")
> [@SPR0STO](#): > > How need to be done by BestPractise? This is not a best practice to run multiple nodes on the same physical machine. You can do it if you have more than 64gb of RAM for example but unless you have that I'd not really do it unless I have a very good reason to do so. Why do you want to do that? To answer your question: > Can I use for all of my data nodes one directory? Yes you can (it will require that you change another setting though) but I'd prefer having 3 different dirs, one per node instead. ---
**Author:** ![SPR0STO](https://avatars.discourse-cdn.com/v4/letter/s/a183cd/32.png) [@SPR0STO](https://discuss.elastic.co/u/SPR0STO)\ **Post date:** [February 15, 2019, 12:23pm UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/3 "2019-02-15T12:23:36Z")
Thank you, David My single server have 256 Gb of RAM I noticed that the directory default structure `/var/lib/elasticsearch/nodes/0/` ... as if hinting at such a possibility (perhaps not documented). I want to prepare a script for automatic server deployment with the following cluster configuration: - one master node - three data nodes ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 15, 2019, 12:40pm UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/4 "2019-02-15T12:40:36Z")
Have a look at - `node.max_local_storage_nodes`: [https://www.elastic.co/guide/en/elasticsearch/reference/6.6/modules-node.html#max-local-storage-nodes](https://www.elastic.co/guide/en/elasticsearch/reference/6.6/modules-node.html#max-local-storage-nodes) - `cluster.routing.allocation.same_shard.host`: [https://www.elastic.co/guide/en/elasticsearch/reference/6.6/shards-allocation.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.6/shards-allocation.html) HTH ---
**Author:** ![SPR0STO](https://avatars.discourse-cdn.com/v4/letter/s/a183cd/32.png) [@SPR0STO](https://discuss.elastic.co/u/SPR0STO)\ **Post date:** [February 15, 2019, 1:02pm UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/5 "2019-02-15T13:02:35Z")
Thank you, David You confirmed my hunch. So, I can use, for example, the directory ``` path.data: /var/lib/elasticsearch-nodes node.max_local_storage_nodes = 3 # or more ``` ... for all my date nodes. And the directory ``` path.data: /var/lib/elasticsearch node.max_local_storage_nodes = 1 ``` ... for the master node? ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 15, 2019, 1:54pm UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/6 "2019-02-15T13:54:01Z")
Yes but as I said I feel more confortable with one data dir per node instead. Like starting elasticsearch with: ```auto bin/elasticsearch -Epath.data=/var/elasticsearch/data1 -Epath.logs=/var/logs/elasticsearch/node1 bin/elasticsearch -Epath.data=/var/elasticsearch/data2 -Epath.logs=/var/logs/elasticsearch/node2 bin/elasticsearch -Epath.data=/var/elasticsearch/data3 -Epath.logs=/var/logs/elasticsearch/node3 ``` Something like this. But it's up to you. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 15, 2019, 1:54pm UTC](https://discuss.elastic.co/t/data-path-for-multiple-nodes-on-single-server/168569/7 "2019-03-15T13:54:04Z")
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