# Routing vs aliasing **URL:** \ **Category:** Elasticsearch\ **Created:** [December 1, 2014, 11:49am UTC](https://discuss.elastic.co/t/routing-vs-aliasing/21004 "2014-12-01T11:49:16Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Mohamed\_Hedi\_ABIDI](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Mohamed\_Hedi\_ABIDI](https://discuss.elastic.co/u/Mohamed_Hedi_ABIDI)\ **Post date:** [December 1, 2014, 11:49am UTC](https://discuss.elastic.co/t/routing-vs-aliasing/21004/1 "2014-12-01T11:49:16Z")
Hello, I'm planning a strategy for querying millions of docs : - Option 1 - time based indexation + aliasing : explaned here =\> [http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/time-based.html](http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/time-based.html) - Option 2 - custom document routing : Explaned here =\> [http://www.elasticsearch.org/blog/customizing-your-document-routing/](http://www.elasticsearch.org/blog/customizing-your-document-routing/) What are the differences or advantages when using routing or aliasing? -- 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/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [December 1, 2014, 12:46pm UTC](https://discuss.elastic.co/t/routing-vs-aliasing/21004/2 "2014-12-01T12:46:31Z")
Option 3: both. Routing is "in which shard I want to send a doc or in which shards I want to run a search?" Aliases are shortcuts to know in which indices/shards you want to query. It can be a simple list of indices and it may contain a routing key. Alias with routing is a very good approach IMHO. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > Le 1 déc. 2014 à 13:49, Mohamed Hedi ABIDI [abidimh@gmail.com](mailto:abidimh@gmail.com) a écrit : > > Hello, > > I'm planning a strategy for querying millions of docs : > > Option 1 - time based indexation + aliasing : explaned here =\> [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/time-based.html) > Option 2 - custom document routing : Explaned here =\> [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/blog/customizing-your-document-routing/) > What are the differences or advantages when using routing or aliasing? > > -- > 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/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com). > 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/D38CE760-3A29-4561-95DA-B66B8888F0BD%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/D38CE760-3A29-4561-95DA-B66B8888F0BD%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Mohamed\_Hedi\_ABIDI](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Mohamed\_Hedi\_ABIDI](https://discuss.elastic.co/u/Mohamed_Hedi_ABIDI)\ **Post date:** [December 1, 2014, 2:24pm UTC](https://discuss.elastic.co/t/routing-vs-aliasing/21004/3 "2014-12-01T14:24:07Z")
thanks David! Le lundi 1 décembre 2014 13:46:48 UTC+1, David Pilato a écrit : > Option 3: both. > > Routing is "in which shard I want to send a doc or in which shards I want > to run a search?" > > Aliases are shortcuts to know in which indices/shards you want to query. > It can be a simple list of indices and it may contain a routing key. > > Alias with routing is a very good approach IMHO. > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 1 déc. 2014 à 13:49, Mohamed Hedi ABIDI \<[abi...@gmail.com](mailto:abi...@gmail.com) \\> > a écrit : > > Hello, > > I'm planning a strategy for querying millions of docs : > > - Option 1 - time based indexation + aliasing : explaned here =\> > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/time-based.html) > > - Option 2 - custom document routing : Explaned here =\> > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/blog/customizing-your-document-routing/) > > What are the differences or advantages when using routing or aliasing? > > -- > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/fb5ad148-3f23-409f-8fc0-b991eb0e73c1%40googlegroups.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/d9e5f0f8-cf8a-4bba-bd5a-081210712e94%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d9e5f0f8-cf8a-4bba-bd5a-081210712e94%40googlegroups.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, 12:46am UTC](https://discuss.elastic.co/t/routing-vs-aliasing/21004/4 "2017-07-06T00:46:49Z")