# Upgraded, existing indices unavailable

**URL:** https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647
**Category:** Elasticsearch
**Created:** [June 30, 2015, 5:05pm UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647 "2015-06-30T17:05:19Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![tligda](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tligda/32/3525_2.png) [@tligda](https://discuss.elastic.co/u/tligda)
#### Post date: [June 30, 2015, 5:05pm UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647/1 "2015-06-30T17:05:19Z")

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Greetings, everyone.

I have an issue where I upgraded my ElasticSearch cluster (3 masters, 5 data) from 0.90.10 to 1.4.5. All the existing indices are missing when I look in kopf. They are present on disk, but not in kopf.

Can I get them back directly, or do I have to regenerate all the data?

I attended the upgrade webinar and it seems the Lucene in 1.4.5 should be able to read the indices from 0.90.10, so that's not the problem.

Perhaps a bug or a split-brain issue?

Any help is greatly appreciated.

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### Author: ![Igor\_Motov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/igor_motov/32/45193_2.png) [@Igor\_Motov](https://discuss.elastic.co/u/Igor_Motov)
#### Post date: [July 1, 2015, 1:04pm UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647/2 "2015-07-01T13:04:09Z")

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Any errors in the log files?

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### Author: ![tligda](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tligda/32/3525_2.png) [@tligda](https://discuss.elastic.co/u/tligda)
#### Post date: [July 1, 2015, 4:02pm UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647/3 "2015-07-01T16:02:08Z")

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I forgot to mention that. I don't see any error messages in the log files related to the indices.

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### Author: ![Igor\_Motov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/igor_motov/32/45193_2.png) [@Igor\_Motov](https://discuss.elastic.co/u/Igor_Motov)
#### Post date: [July 1, 2015, 4:29pm UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647/4 "2015-07-01T16:29:30Z")

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Any errors or warnings that are not related to the indices but related to the cluster as a whole?

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### 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, 12:04am UTC](https://discuss.elastic.co/t/upgraded-existing-indices-unavailable/24647/5 "2017-07-06T00:04:08Z")

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