# Schema Update, replication **URL:** \ **Category:** Elasticsearch\ **Created:** [July 25, 2014, 9:51pm UTC](https://discuss.elastic.co/t/schema-update-replication/18908 "2014-07-25T21:51:43Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Timothy\_Dilbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timothy_dilbert/32/117767_2.png) [@Timothy\_Dilbert](https://discuss.elastic.co/u/Timothy_Dilbert)\ **Post date:** [July 25, 2014, 9:51pm UTC](https://discuss.elastic.co/t/schema-update-replication/18908/1 "2014-07-25T21:51:43Z")
Hello, I am very new to ElasticSearch so have a quick question re: schemas updating and the effect it has on replication. Let's say you have an index filled with a number of json documents and one of the fields in the json document is a blob. Now you perform an update on the json document and update one field (not the blob), does ElasticSearch replicate the whole json document or does it just replicate the change (meaning just replicate the field change) across all of the other nodes? -- 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/fec50d9e-1f05-4ef5-9345-3ff4ed84a320%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/fec50d9e-1f05-4ef5-9345-3ff4ed84a320%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Timothy\_Dilbert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timothy_dilbert/32/117767_2.png) [@Timothy\_Dilbert](https://discuss.elastic.co/u/Timothy_Dilbert)\ **Post date:** [July 29, 2014, 3:46pm UTC](https://discuss.elastic.co/t/schema-update-replication/18908/2 "2014-07-29T15:46:16Z")
I received a response to this. The answer is YES. On Friday, July 25, 2014 4:51:44 PM UTC-5, Timothy Dilbert wrote: > Hello, > > I am very new to Elasticsearch so have a quick question re: schemas > updating and the effect it has on replication. > > Let's say you have an index filled with a number of json documents and one > of the fields in the json document is a blob. Now you perform an update on > the json document and update one field (not the blob), does Elasticsearch > replicate the whole json document or does it just replicate the change > (meaning just replicate the field change) across all of the other nodes? -- 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/531e7ed4-6ba9-4293-9d43-5ca998f5a7be%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/531e7ed4-6ba9-4293-9d43-5ca998f5a7be%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, 1:12am UTC](https://discuss.elastic.co/t/schema-update-replication/18908/3 "2017-07-06T01:12:29Z")