[/map {"- map/map "}) [/map/topicref {"- map/topicref "}) [/map/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicmeta/navtitle {"- topic/navtitle "}) Administering a Big Data Discovery Cluster (navtitle][/map/topicref/topicmeta/linktext {"- map/linktext "}) Administering a Big Data Discovery Cluster (linktext][/map/topicref/topicmeta/shortdesc {"- map/shortdesc "}) This section describes how to perform different administrative tasks for your BDD cluster deployment as a whole, such as backing it up and updating its configuration. (shortdesc] (topicmeta][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating the BDD configuration (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating the BDD configuration (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can update BDD's configuration by editing bdd.conf then running the bdd-admin script to distribute your changes to the rest of the cluster. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Configuration properties that can be modified (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Configuration properties that can be modified (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) The table below describes the properties in bdd.conf that you can modify. Be sure to read this information carefully before making changes to bdd.conf. Don't update any other properties in this file, as this could have negative effects on your cluster. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Backing up BDD (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Backing up BDD (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Because Big Data Discovery doesn't perform automatic backups, you must back up your system manually. Oracle recommends that, at a minimum, you back up your cluster immediately after deployment. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Restoring BDD (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Restoring BDD (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can restore your cluster from a backup TAR file by running the bdd-admin script with the restore command. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating BDD's Hadoop configuration (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating BDD's Hadoop configuration (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can update your BDD cluster's Hadoop configuration with the bdd-admin script. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating the Hadoop client configuration files (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating the Hadoop client configuration files (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you update your Hadoop client configuration files, you can publish your changes to BDD with the bdd-admin script. This distributes the Hadoop client configuration files to all BDD nodes and updates the relevant properties in BDD's configuration files. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Setting the Hue URI (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Setting the Hue URI (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you have an HDP cluster, you can use the bdd-admin script to update the URI of the node running Hue in bdd.conf. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Upgrading Hadoop (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Upgrading Hadoop (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you want to upgrade to a new version of your Hadoop distribution, you need to update your BDD cluster to integrate with it. You can do this using the bdd-admin script. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating BDD's Kerberos configuration (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating BDD's Kerberos configuration (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can update your BDD cluster's Kerberos configuration with the bdd-admin script. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Enabling Kerberos (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Enabling Kerberos (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) BDD supports Kerberos 5+ to authenticate its communications with Hadoop. You can enable this for BDD to improve the security of your cluster and data. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Changing the location of the Kerberos krb5.conf file (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Changing the location of the Kerberos krb5.conf file (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you want to change the location of the krb5.conf file, you can use the bdd-admin script to update BDD's configuration accordingly. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating the Kerberos keytab file (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating the Kerberos keytab file (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you update BDD's current keytab file or create a new one, you can use the bdd-admin script to publish the new or updated file to the rest of the cluster. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Updating the Kerberos principal (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Updating the Kerberos principal (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you edit the BDD principal or create a new one, you can use the bdd-admin script to publish your changes to the rest of the cluster. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Adding new nodes to the BDD cluster (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Adding new nodes to the BDD cluster (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) The following sections describe how to add new nodes to your BDD cluster. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Adding new Dgraph nodes (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Adding new Dgraph nodes (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can add new Dgraph nodes to BDD to expand your Dgraph cluster. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Adding new Data Processing nodes (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Adding new Data Processing nodes (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can add new Data Processing nodes to your BDD cluster to increase your processing power. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Refreshing TLS/SSL certificates (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Refreshing TLS/SSL certificates (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) If you have TLS/SSL enabled for BDD, you can use the bdd-admin script to refresh your certificates, when needed. (shortdesc] (topicmeta] (topicref] (topicref] (map]