# Almost all primary shards on same node

**URL:** <https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364>\
**Category:** Elasticsearch\
**Created:** [May 18, 2016, 5:09pm UTC](https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364 "2016-05-18T17:09:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![bishma](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@bishma](https://discuss.elastic.co/u/bishma)\
**Post date:** [May 18, 2016, 5:09pm UTC](https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364/1 "2016-05-18T17:09:57Z")

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I've got a dev cluster running elasticsearch 1.7.0 that I haven't had need to look at very closely for a couple months but now I'm prepping to to a rolling replacement of the instances and a noticed an oddity. When I first set it up everything was looked fine but now I notice that most indexes have all their primary shards on the same node. A few have them split a bit but even those have most of the shards on that node.

So I have 3 questions which I'd appreciate any guidance on:

1. Is this a problem?
2. Do I have settings screwed up somewhere (see below)?
3. Does this need to be fixed before I do the replacement of all my nodes?

[Pastebin of Cluster Node Info](http://pastebin.com/dfS5JP9s)

Thanks in advance

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [May 18, 2016, 9:25pm UTC](https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364/2 "2016-05-18T21:25:19Z")

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1. No  
The rest doesn't matter.

A primary and any replicas do the same amount of work, so this is not a problem you need to worry about.

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**Author:** ![bishma](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@bishma](https://discuss.elastic.co/u/bishma)\
**Post date:** [May 18, 2016, 11:09pm UTC](https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364/3 "2016-05-18T23:09:22Z")

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Thank you

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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 5, 2017, 10:50pm UTC](https://discuss.elastic.co/t/almost-all-primary-shards-on-same-node/50364/4 "2017-07-05T22:50:33Z")

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