# Curl: (52) Empty reply from server When trying to restart cluster ( given user/password ) **URL:** \ **Category:** Elasticsearch\ **Created:** [January 11, 2021, 12:19pm UTC](https://discuss.elastic.co/t/curl-52-empty-reply-from-server-when-trying-to-restart-cluster-given-user-password/260717 "2021-01-11T12:19:22Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![umen](https://avatars.discourse-cdn.com/v4/letter/u/ec9cab/32.png) [@umen](https://discuss.elastic.co/u/umen)\ **Post date:** [January 11, 2021, 12:19pm UTC](https://discuss.elastic.co/t/curl-52-empty-reply-from-server-when-trying-to-restart-cluster-given-user-password/260717/1 "2021-01-11T12:19:22Z")
i try to restart the cluster with the put command as stated in the docs: > **[Full-cluster restart and rolling restart | Elasticsearch Reference \[7.10\] |...](https://www.elastic.co/guide/en/elasticsearch/reference/current/restart-cluster.html)** ```auto curl -u "elastic:xxxxxxxxx" -k -X PUT "localhost:9200/_cluster/settings?pretty" -H 'Content-Type: application/json' -d' { "persistent": { "cluster.routing.allocation.enable": "primaries" } } ' ``` still I'm getting : ```auto % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 80 0 0 100 80 0 83 --:--:-- --:--:-- --:--:-- 83 curl: (52) Empty reply from server ``` it does work fine if i invoke : ```auto curl -u "elastic:xxxxxxxxx" -k "https://localhost:9200" ``` what I'm doing wrong here ? Thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 8, 2021, 12:19pm UTC](https://discuss.elastic.co/t/curl-52-empty-reply-from-server-when-trying-to-restart-cluster-given-user-password/260717/2 "2021-02-08T12:19:23Z")
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