# Split brain on cluster restart **URL:** \ **Category:** Elasticsearch\ **Created:** [January 31, 2018, 8:33pm UTC](https://discuss.elastic.co/t/split-brain-on-cluster-restart/117901 "2018-01-31T20:33:10Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![arisbanach](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@arisbanach](https://discuss.elastic.co/u/arisbanach)\ **Post date:** [January 31, 2018, 8:33pm UTC](https://discuss.elastic.co/t/split-brain-on-cluster-restart/117901/1 "2018-01-31T20:33:10Z")
I'm curious: if I have a cluster of 3 nodes and have set the minimum number of master nodes to be 2 to prevent split brain issues, wouldn't it still be susceptible to split brain when restarting one of the nodes since it will only find two total? I'm not super familiar with the idea of "split brain," so sorry if this is a stupid question. ---
**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:** [January 31, 2018, 8:57pm UTC](https://discuss.elastic.co/t/split-brain-on-cluster-restart/117901/2 "2018-01-31T20:57:56Z")
> wouldn't it still be susceptible to split brain when restarting one of the nodes since it will only find two total? No. That will be fine. If during this operation there is a disconnection between the 2 remaining nodes, then the cluster will be blocked waiting for a second node to appear again. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 28, 2018, 8:58pm UTC](https://discuss.elastic.co/t/split-brain-on-cluster-restart/117901/3 "2018-02-28T20:58:26Z")
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