# Nodes not seeing each other symmetrically **URL:** \ **Category:** Elasticsearch\ **Created:** [June 7, 2013, 1:21am UTC](https://discuss.elastic.co/t/nodes-not-seeing-each-other-symmetrically/12308 "2013-06-07T01:21:21Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![xwk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xwk/32/2159_2.png) [@xwk](https://discuss.elastic.co/u/xwk)\ **Post date:** [June 7, 2013, 1:21am UTC](https://discuss.elastic.co/t/nodes-not-seeing-each-other-symmetrically/12308/1 "2013-06-07T01:21:21Z")
Hello, We had a weird bug with our production ES cluster this afternoon : we have 3 nodes, and each of those 3 was aware of exactly one other node : when asking each node what other node(s) he knew of (with the \_nodes API endpoint), I got that: - 1 saw only 3 - 2 saw only 1 - 3 saw only 1 How is that possible? I would have thought that if a server A was aware of another B, that then B would also be aware of A? Rebooting 2 solved the issue, but I'm a bit worried about this happening again... Thanks for your help, Jean -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 2:32am UTC](https://discuss.elastic.co/t/nodes-not-seeing-each-other-symmetrically/12308/2 "2017-07-06T02:32:28Z")
Closed on July 6, 2017, 2:32am UTC