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To disable the Spark UI completely, follow the steps below.

1. Build a sample servlet filter

   as described here

   .

   Info
   You can use any servlet filter for this purpose. If you want to implement your own servley filter, you can follow the instructions in Apache Tomcat - Interface Filter.

2. Place the build jar in the <DAS_HOME>/repository/component/lib directory.

3. Add the following property to the <DAS_HOME>/repository/conf/analytics/spark/spark-default.conf file.

   Code Block
   language java
   spark.ui.filters com.examples.BasicAuthenticationFilter spark.com.examples.BasicAuthenticationFilter.params username=admin,password=admin

4. Add the following property to the <DAS_HOME>/repository/conf/analytics/spark/external-spark-classpath.conf file.

   Code Block
   repository/components/lib/basicAuthenticationFilter-0.0.1-SNAPSHOT.jar

5. Restart the the DAS cluster.

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