# What kind of issues are there in 2 node ES Master-Master Cluster Set Up?

**URL:** <https://discuss.elastic.co/t/what-kind-of-issues-are-there-in-2-node-es-master-master-cluster-set-up/91086>\
**Category:** Elasticsearch\
**Created:** [June 28, 2017, 11:06am UTC](https://discuss.elastic.co/t/what-kind-of-issues-are-there-in-2-node-es-master-master-cluster-set-up/91086 "2017-06-28T11:06:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Priyanka\_Talwaria](https://avatars.discourse-cdn.com/v4/letter/p/439d5e/32.png) [@Priyanka\_Talwaria](https://discuss.elastic.co/u/Priyanka_Talwaria)\
**Post date:** [June 28, 2017, 11:06am UTC](https://discuss.elastic.co/t/what-kind-of-issues-are-there-in-2-node-es-master-master-cluster-set-up/91086/1 "2017-06-28T11:06:31Z")

</div>

In one of my post i asked about measuring replication lag while replicating data among master and data nodes ,so I got to know it is done synchronously and there is no lag as such. So is there any issue if I set up master - master set up?  
Or what are the advantages of setting master and data node cluster over master master cluster or vice versa?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 26, 2017, 11:06am UTC](https://discuss.elastic.co/t/what-kind-of-issues-are-there-in-2-node-es-master-master-cluster-set-up/91086/2 "2017-07-26T11:06:33Z")

</div>

Closed on July 26, 2017, 11:06am UTC

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.