how to add #proxy user in #oozie or #hue

 To add a proxy user in Oozie or Hue, you will need to update the configuration files for these tools.

Here are the steps to add a proxy user in Oozie:

1.       Open the core-site.xml file, which is located in the Hadoop configuration directory. This directory is typically located at /etc/hadoop/conf/.

2.       Add the following configuration property to the file, replacing proxyuser with the username of the user you want to act as a proxy:

<property>

  <name>hadoop.proxyuser.proxyuser.hosts</name>

  <value>*</value>

</property>

 

3.       Add the following configuration property to the file, replacing proxyuser with the username of the user you want to act as a proxy, and user with the username of the user you want to allow to use the proxy:

 

<property>

  <name>hadoop.proxyuser.proxyuser.groups</name>

  <value>user</value>

</property>

 

4.       Save and close the configuration file.

5.       Restart the Oozie server to apply the changes.

 

Here are the steps to add a proxy user in Hue:

 

1.       Open the hue.ini configuration file, located in the Hue configuration directory. This directory is typically located at /etc/hue/conf/.

2.       Find the [desktop] section in the configuration file, and add the following setting:

 

[desktop].

proxy_username=proxyuser

 

3.       Save and close the configuration file.

4.       Restart the Hue server to apply the changes.

 

Note that adding a proxy user allows a specific user to act on behalf of another user. This can be a security risk, so it is important to carefully consider which users are allowed to act as proxies and which users are allowed to use proxies.

how to enable #impersonation in #hue or #oozie

Enabling impersonation in Hue or Oozie requires configuring the appropriate settings in their respective configuration files.

To enable #impersonation in #Hue, follow these steps:

1.       Open the hue.ini configuration file, located in the Hue configuration directory. This directory is typically located at /etc/hue/conf/.

2.       Find the [desktop] section in the configuration file, and add the following settings:

[desktop]
enable_impersonation=true

3.       Save and close the configuration file.

4.       Restart the Hue server to apply the changes.

To enable #impersonation in #Oozie, follow these steps:

1.       Open the oozie-site.xml configuration file, located in the Oozie configuration directory. This directory is typically located at /etc/oozie/conf/.

2.       Find the <property> section in the configuration file, and add the following property:

<property>
    <name>oozie.service.HadoopAccessorService.kerberos.enabled</name>
    <value>true</value>
</property>

3.       Save and close the configuration file.

4.       Restart the Oozie server to apply the changes.

Note that enabling #impersonation in #Hue and #Oozie requires #Kerberos #authentication to be enabled and properly configured in your #environment. Without proper Kerberos configuration, impersonation will not work correctly.