Sentry enables role-based, fine-grained authorization for HiveServer2 and Cloudera Impala. It provides classic database-style authorization for Hive and Impala. For more information, and instructions on configuring Sentry for Hive, see Sentry Policy File Configuration.
Installing and Upgrading Sentry
If you have not already done so, install Cloudera's yum, zypper/YaST or apt repository before using the following commands. For instructions, see CDH 5 Installation.
Upgrading Sentry from CDH 4 to CDH 5
To upgrade Sentry from CDH 4 to CDH 5, you must uninstall the old version and install the new version. If you have already performed the steps to uninstall CDH 4 and all components, as described under Upgrading from CDH 4 to CDH 5, you can skip Step 1 below and proceed with installing the new CDH 5 version of Sentry.
- Remove the CDH 4 Version of
Remove Sentry as follows, depending on your operating system:
OS Command RHEL
$ sudo yum remove sentry
$ sudo zypper remove sentry
Ubuntu or Debian
$ sudo apt-get remove sentry
- Install the New Version of Sentry
Follow instructions in the next section to install the CDH 5 version of Sentry.Important
- If you install a newer version of a package that is already on the system, configuration files that you have modified will remain intact.
- If you uninstall a package, the package manager renames any configuration files you have modified from <file> to <file>.rpmsave. If you then re-install the package (probably to install a new version) the package manager creates a new <file> with applicable defaults. You are responsible for applying any changes captured in the original configuration file to the new configuration file. In the case of Ubuntu and Debian upgrades, you will be prompted if you have made changes to a file for which there is a new version; for details, see Automatic handling of configuration files by dpkg.
The upgrade is now complete.
Installing SentryInstall Sentry as follows, depending on your operating system:
$ sudo yum install sentry
$ sudo zypper install sentry
|Ubuntu or Debian||
$ sudo apt-get update; $ sudo apt-get install sentry
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