# Ignore lost shards and make cluster health from RED to GREEN

**URL:** <https://discuss.elastic.co/t/ignore-lost-shards-and-make-cluster-health-from-red-to-green/31433>\
**Category:** Elasticsearch\
**Created:** [October 1, 2015, 12:46am UTC](https://discuss.elastic.co/t/ignore-lost-shards-and-make-cluster-health-from-red-to-green/31433 "2015-10-01T00:46:55Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![no\_jihun](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/no_jihun/32/64028_2.png) [@no\_jihun](https://discuss.elastic.co/u/no_jihun)\
**Post date:** [October 1, 2015, 9:29am UTC](https://discuss.elastic.co/t/ignore-lost-shards-and-make-cluster-health-from-red-to-green/31433/5 "2015-10-01T09:29:14Z")

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Thanks @magnusbaeck.  
btw. could you please let me know more about

> That depends on the performance of your nodes, the mappings, and the query patterns

I saw many articles which generally says

- a little overallocation good to scalability
- shard consume resources, so too many shard make performance/resource issue.

In my situation

- there is no one document get.
- you can see my mapping at this thread  
[How to add not analyzed field with dynamic tempate? - #3 by no\_jihun](https://discuss.elastic.co/t/how-to-add-not-analyzed-field-with-dynamic-tempate/31391/3)
- cluster is under pressure both cpu and ram.
- there are about 10 times full gc which takes 10~20secs per a day per a node.
- almost of the query is aggretations which made by kibana dashboard in date range 1day ~ 30days.

all node's hardward is

- 22GB RAM(to es), 24v cores.

It would be great if you let me know or give some url something like [Trifork Blog - Keep updated on the technical solutions Trifork is working on!](http://blog.trifork.com/2014/01/07/elasticsearch-how-many-shards/)  
but this post only reveal the upside of less shards\_count, and tested with facets not aggs.

thanks!

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_[View the full topic](https://discuss.elastic.co/t/ignore-lost-shards-and-make-cluster-health-from-red-to-green/31433)._
