# Discover: Request to Elasticsearch failed
**URL:** https://discuss.elastic.co/t/discover-request-to-elasticsearch-failed/100604
**Category:** Elasticsearch
**Created:** [September 14, 2017, 8:27pm UTC](https://discuss.elastic.co/t/discover-request-to-elasticsearch-failed/100604 "2017-09-14T20:27:48Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@sudi\_2611](https://discuss.elastic.co/u/sudi_2611)
#### Post date: [September 14, 2017, 8:27pm UTC](https://discuss.elastic.co/t/discover-request-to-elasticsearch-failed/100604/1 "2017-09-14T20:27:48Z")
I am using latest version of ELK 5.6.1 and i get the below mentioned error in discover tab in Kibana GUI
Discover: Request to Elasticsearch failed: {"error":{"root\_cause":[],"type":"search\_phase\_execution\_exception","reason":"all shards failed","phase":"query","grouped":true,"failed\_shards":[]},"status":503}
Elastic Search log:
2017-09-14T16:17:20,510][WARN][o.e.c.r.a.DiskThresholdMonitor] [[TOCWHD57IC.scglobaluat.aduat.scotiacapital.com](http://TOCWHD57IC.scglobaluat.aduat.scotiacapital.com)] high disk watermark [90%] exceeded on [3zVmYlr2Q-2HA3\_dnrqgKA][[TOCWHD57IC.scglobaluat.aduat.scotiacapital.com](http://TOCWHD57IC.scglobaluat.aduat.scotiacapital.com)][/var/lib/elasticsearch/nodes/0] free: 3.4gb[7.5%], shards will be relocated away from this node
om this node
Logstash log;
2017-09-14T16:16:23,641][INFO][logstash.outputs.elasticsearch] retrying failed action with response code: 503 ({"type"=\>"unavailable\_shards\_exception", "reason"=\>"[fsimage-2017.09.14][0] primary shard is not active Timeout: [1m], request: [BulkShardRequest [[fsimage-2017.09.14][0]] containing [5] requests]"})
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### Author:  [@mujtabahussain](https://discuss.elastic.co/u/mujtabahussain)
#### Post date: [September 14, 2017, 9:50pm UTC](https://discuss.elastic.co/t/discover-request-to-elasticsearch-failed/100604/2 "2017-09-14T21:50:36Z")
> [@sudi\_2611](#):
>
> high disk watermark [90%]
Perhaps your disks are getting full?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 12, 2017, 9:50pm UTC](https://discuss.elastic.co/t/discover-request-to-elasticsearch-failed/100604/3 "2017-10-12T21:50:50Z")
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