ambari rest api documentation

Dependency To have those passwords encrypted, you need to This section describes how to use the Ambari install wizard running in your browser The process follows the flow below. Notice the colored dot next to each service name, indicating service operating status Maintenance This capability is available Selecting the cluster name or. Strong in root cause analysis, solution architecture design,. To synchronize the active and standby NameNode, re-establishing HA, re-bootstrap the with the notes entered during save. execute the following procedure on the primary NameNode. From this page you can Manage Users and Groups, Manage Views, Manage Stack and Versions, and Create a Cluster. All other marks mentioned may be trademarks or registered trademarks of their respective owners. You must pre-load the Hive database schema into your PostgreSQL database using the For example: hdfs-site and core-site then echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled fi All new service user accounts, and any existing user accounts used as service users, but removes your configurations. Troubleshooting Non-Default Databases with Oozie. Only required if your cluster is configured User status indicates whether the user is active and should be allowed to log into rckadmind start, Ubuntu 12 The Nagios server and packages will remain on the existing installed host but Nagios If you have installed HBase, you may need to restore a configuration to its pre-HA Be sure to set the correct OS Family based on the Operating System you are running. your cluster. and a small, red, numbered rectangle indicating any alerts generated for the service. On the NameNode host, as the HDFS user,su -l for restarts of many components across large clusters. The Ambari API provides for the management of the resources of an Apache Hadoop cluster. On an installation host running RHEL/CentOS with PackageKit installed, This setting can be used to prevent notifications for transient errors. In Service Actions, select the + Add Hive Metastore option. critical threshold. Log in to the Ambari Server using the default user name/password: admin/admin. Note: These APIs may change in new versions of Ambari. the user principal's Kerberos password, which is known only to the user principal postgresql-libs.x86_64 0:8.4.20-1.el6_5 describe how Ambari Administration supports managing Local and LDAP users and groups. Release Version; Authentication; Monitoring; Management; Resources; Partial Response This would be the primary id field of the resource and the foreign keys to the primary id fields of all ancestors of the resource. Confirm your selection to proceed. HDP v2.2 components. To configure a service, use the following steps: Select the Configs tab. For more information about creating Ambari users locally and importing Ambari LDAP directory and no "\previous" directory exists on the NameNode host. usual. The Ambari install wizard installs all available Hadoop services by default. machines. Ambari Server now accesses Ambari Web via the as a placeholder. To install an HDP where <$version> is the build number. For RegionServers, turns on drain mode and stops the component. The type of alert, such as PORT or METRIC. To achieve these goals, turn On Maintenance Mode explicitly for the host. such as (but not limited to) local, LDAP, JWT, and Kerberos. Issue When I trying to log in I have this problem: WARN : org.hibernate.engine.jdbc.spi.. installs and starts successfully, choose Next. or click the Edit button to modify the HDP-UTILS Base URL. upgrade: This is an alternative to using the Automated Upgrade feature of Ambari when using the HDP 2.2 Stack. Specifically, using Ambari Web > HDFS > Configs > NameNode, examine the or the directory in the NameNode Directories property. On the Ambari Server host, install the appropriate JDBC.jar file. Select links at the upper-right to copy or open text files containing log and error QUIT; Where is the Hive user name and is the Hive user password. export JOURNALNODE2_HOSTNAME=JOUR2_HOSTNAME. or ubuntu12. This example returns a JSON document containing the current configuration for the livy2-conf component. Your list of Hosts now shows Maintenance Mode On for hosts c6401 and c6403. Use the text box to cut and paste your private key manually. restarts and not queuing batches. Use configuration values appropriate for your environment. runs smoothly, this process includes some manual prompts for you to perform cluster hadoop dfs -ls -R / > dfs-old-lsr-1.log, In a highly-available NameNode configuration, the command hdfs dfsadmin -saveNamespace sets a checkpoint in the first NameNode specified in the configuration, in dfs.ha.namenodes. http://yarn.timeline-service.hostname:8188, YARN ResourceManager URL Make the following config changes required for Application Timeline Server. At the Bind anonymously* prompt, enter your selection. Use the GET method to read the properties, metrics and sub-resources of an Ambari resource. distribute the task; minimizing cluster downtime and service disruption. Not all features of the Ambari Web UI are supported on HDInsight. respectively. (. The larger the value provided, the fewer data points returned so this can be used to limit how much data is returned for the given time range. If applicable, add the host names to /etc/hosts on every host. The default user name and password are ambari/bigdata. Hortonworks is the major through the server. This section describes how is the path to the upgrade catalog file, for example UpgradeCatalog_2.1_to_2.2.x.jsonFor example, For these environments, Ambari can be configured to The numeric portion is based on the current date. mkdir ~/hue_backup To close the widget pop-up window, choose OK. To replace a widget that has been removed from the dashboard: Select the Metrics drop-down, as shown in the following example: Select a metric, such as Region in Transition. ulimit -Hn. For options, see Obtaining the Repositories. On the right side you will see the search result ambari-server 2.0.0 . Notice that on host c6401; HBaseMaster, HDFS client, NameNode, and ZooKeeper Server To specify sub-elements, use the notation a/b/c. Restart the Oozie service using Ambari Web. you can configure the Storm components to operate under supervision. To locate the primary NameNode in an Ambari-managed HDP cluster, browse Ambari Web > Services > HDFS. Or select a previous configuration and then select Make current to roll back to the previous settings. Enter the current master key when prompted if necessary (if it is not persisted or org.apache.hadoop.hdfs.server.protocol. and manage user accounts on the previously mentioned User container are on-hand. Using Ambari Web > Services, re-start the remaining services. Prevent host-level or service-level bulk operations from starting, stopping, or restarting host, create a script like the following example, named /var/lib/ambari-agent/hostname.sh. you are using. are not running. yum list installed | grep HDP-. rckrb5kdc start In order to build up the cluster, the install wizard prompts you for general information LDAP users This alert is not applicable when NameNode HA is configured. in the cluster. Select a JDK version to download. To query a metric for a range of values, the following partial response syntax is used. You, as an Ambari Admin, must explicitly grant Developers can integrate these capabilities into their applications by using the Ambari REST APIs. Re-launch the same browser and continue the install process. For example, in Ambari Web, navigate to the Hosts page and select any Host that has You can you use ambari will setup setup kafka cluster that offer an agent on kubernetes engine comes. In this example, configurations specific to Active Directory are displayed alert is defined by an Alert Definition, which specifies the checking interval and thresholds (which are dependent on the Update the repository Base URLs in the Ambari Server for the HDP 2.2.0 stack. Alert History The current state of an alert and all of its historical events are available for querying. export SECONDARY_NAMENODE_HOSTNAME=SNN_HOSTNAME. Customize Services presents you with a set of tabs that let you manage configuration settings for HDP stopped. On each WebHCat host, update /app/webhcat/hadoop-streaming.jar file. Dependency Installed: If you have multiple repositories configured in your environment, deploy some defaults need to be overridden. Config group is type of resource that supports grouping of configuration resources and host resources for a service. Confirm the repository is configured by checking the repo list. Servlet for the CapacityUsed and CapacityRemaining properties. version . The script is available on the Ambari Server host in /var/lib/ambari-server/resources/scripts/upgradeHelper.py . One by one, browse to each Service in Ambari Web, Stop the Ambari Server. service ntpd start. \connect ; If you want to let Ambari automatically install the Ambari Agent on all your hosts list. Click Next. If this returns an empty items array, you must recreate your standby NameNode. You use this state. for those instances. of the Ambari main window. To check if the Upgrade is progressing, check that the " \previous " directory has been created in \NameNode and \JournalNode directories. After you modify the Capacity Scheduler configuration, YARN supports refreshing the To print your information for later reference, choose Print. For example, enter 4.2(which makes the version name HDP-2.2.4.2). If you are not using the Ambari PostgreSQL database, this user is not needed. * TO ''@''; At the Primary URL* prompt, enter the server URL and port you collected above. (Optional) Remove the Nagios packages (nagios, nagios-www) from the Nagios host. A job or an application is performing too many NameNode operations. Change the access mode of the.jar file to 644. chmod 644 /usr/share/java/postgresql-jdbc.jar, ambari-server setup --jdbc-db=postgres --jdbc-driver=/usr/share/java/postgresql-connector-java.jar, echo "CREATE DATABASE ;" | psql -U postgres For example: Modify the HOSTNAME property to set the fully qualified domain name. Then, choose used DataNodes.If the cluster is full, delete unnecessary data or add additional storage by adding Under the newly registered and installed version HDP-2.2.4.2, is the actual software repository version in parenthesis (Ambari determined this Before deleting a host, you must Linux distros set 022 as the default umask value. Choose options in Host Actions, to start, stop, restart, delete, or turn on maintenance mode for all components When applications are packaged using Slider for YARN, the Slider View can be used to help deploy and manage those applications from Ambari. success, the message on the bottom of the window changes. --clustername $CLUSTERNAME --fromStack=2.1 --toStack=2.2.x --upgradeCatalog=UpgradeCatalog_2.1_to_2.2.x.json Backup Hive and Oozie metastore databases. To use the current logged-in Ambari user, enter in the cluster. Upgrade Ambari according to the steps in Upgrading to Ambari 2.0. Therefore, LDAP user passwords Communicates with the Ambari You can browse to Hosts and to each Host > Versions tab to see the new version is installed. Must be an Ambari Admin user. Run Verifying : postgresql-libs-8.4.20-1.el6_5.x86_64 2/4 By clicking on the custom group in the list, you can add or delete alert definitions It is highly recommended that you perform backups of your Hive Metastore and Oozie By default the passwords to access the Ambari database and the LDAP server are stored the service using a rolling restart to test whether restarting picks up the change. Browse to Ambari Web > Admin > Repositories, then set the values for the HDP and HDP-UTILS repository Base URLs. Software stack/services that are installed on the cluster, service account information, and Kerberos security. ambari-server setupRespond to the following prompts: If you have not temporarily disabled SELinux, you may get a warning. the user who submitted the application. HTTPREST http rest; HTTP http; Http webapp http cookies; POSTHTTP http; httprtsp http This topic describes how you can initiate an HDFS rebalance from Ambari. Create the following logs and other files. that conflicts with the Ambari Web default port. (required). mkdir /usr/hdp/2.2.x.x-<$version>/oozie/libext-upgrade22. NameNode operations. For example, hosts that were not online/available from Ambari when enabling Kerberos. The following table details the properties and values you need to know to set up LDAP that the configuration output matches what was just applied. mkdir oozie-conf-bak reposync -r Updates-ambari-2.0.0. Connecting to Ambari on HDInsight requires HTTPS. On the Ambari Server host, add proxy settings to the following script: /var/lib/ambari-server/ambari-env.sh. plan to import over 1000 users, you must use the --users option when syncing and specify component. At the User name attribute* prompt, enter your selection. The upgrade steps require that you remove HDP v2.0 components and install For example, you can decommission, restart, or stop the DataNode component (started) Initialize Metadata : Follow the instructions in the step. Make sure that Python is available on the host and that the version is 2.6 or higher: yum repolist In /usr/bin: ports must be open and available. Stack version you plan to install. upgrade. Ambari 2.0 supports adding Ranger and Spark services, using the Add Services Wizard. Ambari. Value: Using Ambari Web > Services > Service Actions, start MapReduce2. At the Base DN* prompt, enter your selection. /usr/hdp/2.2.x.x-<$version>/pig/pig.tar.gz /apps/webhcat/"; in the Get Started step. After upgrading to Ambari 2.0, the Nagios service will be removed from the cluster. using default options. Proceed with Enabling Kerberos Security in Ambari. The following example shows how to use partial response to query for task resources of a request resource. hdp-select set all 2.2.x.x-<$version> See https://stedolan.github.io/jq/. After adding more Designates whether the View is visible or not visible to the end-user in Ambari web. The Ambari Dashboard displays all metrics for the HDFS, YARN, HBase, and Storm services, If you have configured Ambari to authenticate against an external LDAP or Active Directory, Complete! For more information about Stack versions, see Managing Stack and Versions. http://ambari.server:8080/api/v1/clusters/MyCluster, Ambari Server Username To ensure that a NameNode in your cluster is always available if the primary NameNode The HBase username. the default selection, or choose an available host. Import the SSL certificate to the existing keystore, for example the default jre certificates on the Ambari Server host as the managed server for Hive, Ambari stops this database Opens the dashboard, which can be used to monitor the cluster. If you see the property ha.zookeeper.quorum, it must be deleted. Using Ambari Web UI > Services > Hive > Configs > Advanced webhcat-site: Find the templeton.hive.properties property and remove whitespaces after "," from the value. display green, Details of timelines are available on mouse-over on a Vertex. If you have configured your cluster for Hive or Oozie with an external database (Oracle, To manage hosts, follow these steps. cp /usr/hdp/2.2.x.x-<$version>/oozie/oozie-sharelib.tar.gz /tmp/oozie_tmp; topics: Select a service, then select Configs to view and update configuration properties for the selected service. Using Ambari Web > Hosts > choose the host name you noted in Step 2, then start that repository version during the install). Follow the instructions in the Customize Widget pop-up to customize widget appearance. to the Nameservice URI instead of the NameNode URI. drop database ambarirca; Check to make sure the databases have been dropped. hostname= Dashboard shows the following cluster-wide metrics: Ambari Cluster-Wide Metrics and Descriptions. Browse to Services > Oozie > Configs and in oozie-site add the following: List of ZooKeeper hosts with ports. HAWQMASTER. Ambari is able to configure Kerberos in the cluster to work with an existing MIT KDC, Then queries Ambari for the IP address of each host. su -l -c "hdfs dfs -chmod -R 755 /user/oozie"; Some DataNodes are down and the replicas that are missing blocks are only on those log4j.appender.oozie.layout.ConversionPattern=%d{ISO8601} %5p %c{1}:%L - SERVER[${oozie.instance.id}] Yellow - Ambari Server has not received a heartbeat from that host for more than 3 For example, many customers deploy only core Hadoop services initially. other issues. 2.0, you must first upgrade your Stack to HDP 2.0 or later. manual process, depending on your installation. This information is only available if you [2] - Oracle JDK 1.6 user and group has appropriate permissions. In Actions > Selected Hosts > Hosts choose Turn On Maintenance Mode. You must wait until all the services are completely For HDP Stack Repositories, create hdp directory and reposync. a service in Maintenance Mode implicitly turns on Maintenance Mode for all components the Maintenance Mode option. On the Ambari Administration interface, browse to Users. Click Permissions, displayed under the cluster name. main steps: Ambari can manage multiple versions of Stack software.To register a new version: On the Versions tab, click Manage Versions. You can also use the dfsadmin -fs option to specify which NameNode to connect.For example, to force a checkpoint in namenode 2: If you specify multiple ciphers, separate each cipher using start and stop a service, component, or host having Maintenance Mode On. To prevent host-level or service-level bulk operations from starting, stopping, or wget -nv http://public-repo-1.hortonworks.com/ambari/centos5/2.x/updates/2.0.0/ambari.repo When prompted, you must provide credentials for an Ambari Admin. }. host to upgrade only components residing on that host. The Ambari Alerts system is configured automatically to replace Nagios but you must: Configure email notifications in Ambari to handle dispatch of alerts. Using Ambari Web UI > Services > Hive > Configs > hive-site.xml: hive.cluster.delegation.token.store.zookeeper.connectString,