# Upgrading ELK screwed up Marvel nodes monitoring display
**URL:** https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176
**Category:** Elasticsearch
**Tags:** elastic-stack-monitoring
**Created:** [December 14, 2015, 10:14pm UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176 "2015-12-14T22:14:02Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@maxhyjal](https://discuss.elastic.co/u/maxhyjal)
#### Post date: [December 14, 2015, 10:14pm UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176/1 "2015-12-14T22:14:02Z")
After I upgraded ES and LS from 2.0 to 2.1 and Kibana from 4.2.1 to 4.3, everything seems to work fine except nodes monitoring information collected by marvel agents. I used to see hostnames, now I can't tell which is which... How can I fix this issue??? ☹
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### Author:  [@skearns](https://discuss.elastic.co/u/skearns)
#### Post date: [December 14, 2015, 11:03pm UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176/2 "2015-12-14T23:03:06Z")
Can you try deleting the .marvel-es-data and .marvel-es-2015-12-14 (just the most recent index - it might be 2015-12-15 by now). There was an issue when upgrading where the mappings of the _current_ indexes weren't updated.
We're fixing this upgrade issue in a patch release soon, but as a workaround, deleting the current marvel index allows it to be re-created with the new mappings.
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### Author:  [@maxhyjal](https://discuss.elastic.co/u/maxhyjal)
#### Post date: [December 15, 2015, 1:26am UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176/3 "2015-12-15T01:26:40Z")
I tried deleting .marvel-es-data and the most recent index. Still experiencing the same problem....
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### Author:  [@maxhyjal](https://discuss.elastic.co/u/maxhyjal)
#### Post date: [December 15, 2015, 1:49am UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176/4 "2015-12-15T01:49:26Z")
Never mind, I missed one step. Deleted .marvel-es-data and the most recent index again and went to kibana, now everything looks fine. Thanks!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:46pm UTC](https://discuss.elastic.co/t/upgrading-elk-screwed-up-marvel-nodes-monitoring-display/37176/5 "2017-07-06T13:46:04Z")