#SINOALICE FAILED TO ACQUIRE DATA INSTALL#
Xbox One enables you to install applications and games on the console. In the property tab of the PutHDFS, the "Additional Classpath Resources" is filled with /usr/lib/hdinsight-datalake (where I copy the jar files).Common Causes for the Xbox One Installation Stopped Error When I start the PutHDFS, I have this error in log file : j : Could not initialize class .adl.AdlFileSystem (with jar tf, I saw that this method is referenced in hadoop-azure-datalake-2.7.3.2.6.2.25-1.jar).
I do not have hdfs-site.xml (because Nifi is not part of the Hadoop) so I referenced my Azure Datalake Store in core-site.xml like this: I get these jar files (not exactly the same versions than in this tutorial): I followed this wonderful tutorial but i still have problem. I try to ingest data from a cluster Nifi 1.5 (hosted in 3 Vms -not on Hadoop) to Azure Data Lake Store. When you run the data flow, you should see the FlowFiles appear in the ADLS directory specified in the processor, which you can verify using the Data Explorer in the Azure Portal, or via some other means. The input to this PutHdfs processor can be any FlowFile, it may be simplest to use the GenerateFlowFile processor to create the input with some Custom Text such as The time is $ We're now ready to configure the PutHdfs processor in NiFi.įor Hadoop configuration resources, point to your modified core-site.xml including the properties above and an hdfs-site.xml (no ADLS-specific changes are required).Īdditional Classpath Resources should point to the /usr/lib/hdinsight-datalake to which we copied the dependencies on all NiFi nodes. The important core-site values are as follows (note the variables identified with the '$' sigil below, including part of the refresh URL path).
These can be assigned via Data Explorer > Access within your ADLS instance.Īt this point, you should have your TenantID, ClientID, and Client Secret available and we will now to be able to configure core-site.xml in order to access Azure Data Lake via the PutHdfs processor. In addition, the service principal will need to have appropriate directory-level authorizations for the ADLS directories to which it should be authorized to read or write. This can be done via the IAM blade for your ADLS instance (please note you will not see the Add button in the top toolbar unless you have administrative access for your Azure subscription). The service principal associated with this application will need to have service-level authorization to access the Azure Data Lake Store instance that exists by assumption as a pre-requisite. Take note of the Application ID (aka the Client ID) and then generate a key via the Keys blade (please note the Client Secret value will be Hidden after leaving this blade so be sure to copy somewhere safe and store securely). Navigate to Azure AD > App Registrations > Add You will also need to create an Azure AD service principal as well as an associated key. This simplest way to obtain this is via the Azure CLI, using the azure account show command. This requires the TenantID associated with your Azure account. In order to authenticate to ADLS, we'll use OAuth2. Once you've gathered these JARs, distribute to all NiFi nodes and place in a created directory /usr/lib/hdinsight-datalake. The Jackson JAR can be found in /usr/hdp/current/hadoop-client/lib, and the last two can be found in /usr/hdp/current/hadoop-hdfs-client/lib.
The first three Azure-specific JARs can be found in /usr/lib/hdinsight-datalake/ on the HDI head node.
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