Help Center> MapReduce Service> Developer Guide (2.x and Earlier)> Impala Application Development> Environment Preparation> Preparing a Development User
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Preparing a Development User

The development user is used to run the sample project. The user must have Impala permissions to run the Impala sample project.

Prerequisites

Kerberos authentication has been enabled for the MRS cluster. Skip this step if Kerberos authentication is not enabled for the cluster.

Procedure

  1. Log in to MRS Manager.
  2. Choose System > Manage User > Create User to create a user for the sample project.
  3. Enter a username, for example, impalauser. Set User Type to Machine-machine, and select impala and supergroup in User Group. Set Primary Group to supergroup and click OK. Figure 1 shows the parameter settings.

    Figure 1 Creating a user

  4. On MRS Manager, choose System > Manage User. In the Operation column corresponding to username impalauser, choose More > Download authentication credential. Save the file and decompress it to obtain the user.keytab and krb5.conf files. The two files are used for security authentication in the sample project.

Related Information

If you modify component parameter configurations, you need to download the client configuration file again and update the client in the running and commissioning environment.

Parent topic: Environment Preparation