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ASF GitHub Bot commented on HAWQ-1473: -------------------------------------- Github user dyozie commented on a diff in the pull request: https://github.com/apache/incubator-hawq-docs/pull/120#discussion_r119489263 --- Diff: markdown/ranger/ranger-integration-config.html.md.erb --- @@ -129,6 +129,64 @@ Once the connection between HAWQ and Ranger is configured, you may choose to set 5. Click **Save** to save your changes. 6. Select **Service Actions > Restart All** and confirm that you want to restart the HAWQ cluster. +## <a id="enableha"></a>Step 3: (Optional) Register a Standby Ranger Plug-in Service + +The HAWQ Ranger Plug-in Service runs on the HAWQ master node. If this service goes down, all HAWQ database operations will fail. Configure a highly available HAWQ Ranger Plug-in Service to eliminate possible downtime should this situation occur. + +Ranger Admin high availability and HAWQ Ranger Plug-in Service high availability are independent; you can configure HAWQ Ranger Plug-in Service HA without configuring HA for Ranger Admin. + +### Prerequisites <a id="rps_ha_cfg_prereq"></a> + +Before you configure HAWQ Ranger authentication in high availability mode, ensure that you have: + +- Installed or upgraded to a version of HAWQ that includes support for HAWQ Ranger Authentication. + +- (Optional) Configured Ranger Admin for high availability. + +- Configured a HAWQ standby master node for your HAWQ cluster. + + You must configure a standby master for your HAWQ deployment before enabling HAWQ Ranger high availability mode. If you have not configured your HAWQ standby master, follow the instructions in [Adding a HAWQ Standby Master](../admin/ambari-admin.html#amb-add-standby) (if you manage your HAWQ cluster with Ambari) or [Configuring Master Mirroring](../admin/MasterMirroring.html#standby_master_configure) (for a command-line-managed HAWQ cluster). + +- Registered the HAWQ Ranger Plug-in Service on your HAWQ master node. + + The HAWQ Ranger Plug-in Service runs on the HAWQ master node. If you have not yet enabled the Ranger Plug-in Service, refer to [Install Ranger Connectivity to HAWQ](ranger-integration-config.html#jar) for registration instructions. (Optional) If you have configured Ranger Admin HA, make sure to identify the Ranger Admin HA proxy when you enable the plug-in. + + +### Configuring the Standby Ranger Plug-in Service <a id="rps_ha_cfg_standbyrps"></a> --- End diff -- This heading title should just be "Procedure". > document ranger plug-in service high availability > ------------------------------------------------- > > Key: HAWQ-1473 > URL: https://issues.apache.org/jira/browse/HAWQ-1473 > Project: Apache HAWQ > Issue Type: Improvement > Components: Documentation > Reporter: Lisa Owen > Assignee: David Yozie > > add RPS high availability information to the docs. include config info as > well as failover scenarios. -- This message was sent by Atlassian JIRA (v6.3.15#6346)