# Node.rack or node.rack\_id **URL:** \ **Category:** Elasticsearch\ **Created:** [December 17, 2014, 9:26am UTC](https://discuss.elastic.co/t/node-rack-or-node-rack-id/21288 "2014-12-17T09:26:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![11149](https://avatars.discourse-cdn.com/v4/letter/1/da6949/32.png) [@11149](https://discuss.elastic.co/u/11149)\ **Post date:** [December 17, 2014, 9:26am UTC](https://discuss.elastic.co/t/node-rack-or-node-rack-id/21288/1 "2014-12-17T09:26:36Z")
in the default elasticsearch.yml file I see there is a node.rack configuration parameter: _# A node can have generic attributes associated with it, which can later be used_ _# for customized shard allocation filtering, or allocation awareness. An attribute_ _# is a simple key value pair, similar to node.key: value, here is an example:_ _#_ _#node.rack: rack314_ but when I read the document there is only a node.rack\_id parameter: _[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html) [http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html)_ so , is there any different between them ? or they are just the same ? -- 不学习，不知道 -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT\_7B2KJb6sFZ-ZRw%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT_7B2KJb6sFZ-ZRw%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [December 17, 2014, 11:12am UTC](https://discuss.elastic.co/t/node-rack-or-node-rack-id/21288/2 "2014-12-17T11:12:06Z")
It doesn't matter, the value after "node." is just an arbitrary label. On 17 December 2014 at 10:26, panfei [cnweike@gmail.com](mailto:cnweike@gmail.com) wrote: > in the default elasticsearch.yml file I see there is a node.rack > configuration parameter: > > _# A node can have generic attributes associated with it, which can later > be used_ > _# for customized shard allocation filtering, or allocation awareness. An > attribute_ > _# is a simple key value pair, similar to node.key: value, here is an > example:_ > _#_ > _#node.rack: rack314_ > > but when I read the document there is only a node.rack\_id parameter: > > _[Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html) > [http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html)_ > > so , is there any different between them ? or they are just the same ? > > -- > 不学习，不知道 > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT\_7B2KJb6sFZ-ZRw%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT_7B2KJb6sFZ-ZRw%40mail.gmail.com) > [https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT\_7B2KJb6sFZ-ZRw%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CA%2BJstLCDity%3Df-CZmmLzwZyCK2xRx5iv%2BFT_7B2KJb6sFZ-ZRw%40mail.gmail.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9QOBGkfaoAig-g6-\_TzxHEgErCaL7XKaFH2iedNY\_xbg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9QOBGkfaoAig-g6-_TzxHEgErCaL7XKaFH2iedNY_xbg%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:43am UTC](https://discuss.elastic.co/t/node-rack-or-node-rack-id/21288/3 "2017-07-06T00:43:18Z")