# Elasticsearch cluster unexpected failure for few minutes when one node down
**URL:** https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601
**Category:** Elasticsearch
**Created:** [May 20, 2018, 7:36pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601 "2018-05-20T19:36:59Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@learnhub17](https://discuss.elastic.co/u/learnhub17)
#### Post date: [May 20, 2018, 7:36pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601/1 "2018-05-20T19:36:59Z")
I have created ES-lab with 3master,2client and 2 datanode. All request is routed through client node.
I have found during indexing if one of my datanode goes down, my entire cluster will get unavailable for 1-2 minutes.
I believe this is because of primary shard belongs to indexing index was also unavailable with the same node.
If I am right then can we make any improvement to minimize such downtime ?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 20, 2018, 8:54pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601/2 "2018-05-20T20:54:55Z")
Which version of Elasticsearch are you using? Do you have a replica configured for your indices? How many indices and shards do you have in the cluster?
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### Author:  [@learnhub17](https://discuss.elastic.co/u/learnhub17)
#### Post date: [May 21, 2018, 4:46am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601/3 "2018-05-21T04:46:30Z")
ES version: 6.2.2
replica: 1
index: 40
shards: 4 shards for each index
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 21, 2018, 5:02am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601/4 "2018-05-21T05:02:53Z")
What is in the Elasticsearch logs?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 18, 2018, 5:02am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-unexpected-failure-for-few-minutes-when-one-node-down/132601/5 "2018-06-18T05:02:55Z")
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