# Cannot Discover Master Node after upgrade to ES 6.0.0

**URL:** <https://discuss.elastic.co/t/cannot-discover-master-node-after-upgrade-to-es-6-0-0/108029>\
**Category:** Elasticsearch\
**Created:** [November 16, 2017, 9:59pm UTC](https://discuss.elastic.co/t/cannot-discover-master-node-after-upgrade-to-es-6-0-0/108029 "2017-11-16T21:59:51Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![shreyask](https://avatars.discourse-cdn.com/v4/letter/s/ecc23a/32.png) [@shreyask](https://discuss.elastic.co/u/shreyask)\
**Post date:** [November 16, 2017, 10:31pm UTC](https://discuss.elastic.co/t/cannot-discover-master-node-after-upgrade-to-es-6-0-0/108029/3 "2017-11-16T22:31:12Z")

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Yes I did. It was a fresh docker image for 6.0.0 on top of which ran `bin/elasticsearch-plugin install --batch discovery-ec2` to get the latest discovery plugin.

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_[View the full topic](https://discuss.elastic.co/t/cannot-discover-master-node-after-upgrade-to-es-6-0-0/108029)._