# Hide parameters in Spark History server **URL:** \ **Category:** Elasticsearch\ **Tags:** es-hadoop\ **Created:** [March 26, 2021, 10:06am UTC](https://discuss.elastic.co/t/hide-parameters-in-spark-history-server/268464 "2021-03-26T10:06:37Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![pablo.jimenez.next](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pablo.jimenez.next/32/86144_2.png) [@pablo.jimenez.next](https://discuss.elastic.co/u/pablo.jimenez.next)\ **Post date:** [March 26, 2021, 10:06am UTC](https://discuss.elastic.co/t/hide-parameters-in-spark-history-server/268464/1 "2021-03-26T10:06:37Z")
Hi, We are trying to connect Spark 3.0.1 with Elasticsearch using the Elastic-hadoop library ([Maven Repository: org.elasticsearch ยป elasticsearch-spark-30](https://mvnrepository.com/artifact/org.elasticsearch/elasticsearch-spark-30)) and everything works fine. However, we are using Spark History server to track jobs. Having a look at the SQL upper tab and seeing the _explain_ details it shows the following: ![Screenshot at Mar 26 11-01-27](https://us1.discourse-cdn.com/elastic/original/3X/d/b/dbbd0529711a5f22460f2d22e7bc206f0cade6b1.png) As you can see, it is showing the user and password which is not very safe ๐Ÿ˜ We know it is possible to use a keystore: [Security | Elasticsearch for Apache Hadoop [7.12] | Elastic](https://www.elastic.co/guide/en/elasticsearch/hadoop/current/security.html#keystore) But we are retrieving at runtime those credentials. So, we cannot generate the keystore before running the job. Is it possible to hide this information? Thanks! ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 23, 2021, 10:07am UTC](https://discuss.elastic.co/t/hide-parameters-in-spark-history-server/268464/2 "2021-04-23T10:07:08Z")
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