Snap type: | Write | |||||||||
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Description: | This Snap converts documents into the ORC format and writes the data to HDFS, S3, or the local file system.
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| Prerequisites: | [None] | |||||||||
| Support and limitations: |
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| Account: | Accounts are not used with this Snap. | |||||||||
| Views: |
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Settings | ||||||||||
Label | Required. The name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline. Default Value: ORC Writer | |||||||||
Directory | Required. The path to a directory from which you want the ORC Reader Snap to read data. All files within the directory must be ORC formatted. Basic directory URI structure
The Directory property is not used in the pipeline execution or preview, and used only in the Suggest operation. When you press the Suggest icon, the Snap displays a list of subdirectories under the given directory. It generates the list by applying the value of the Filter property.
Default value: hdfs://<hostname>:<port>/ | |||||||||
Filter |
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File | Required for standard mode. Filename or a relative path to a file under the directory given in the Directory property. It should not start with a URL separator "/". The File property can be a JavaScript expression which will be evaluated with values from the input view document. When you press the Suggest icon, it will display a list of regular files under the directory in the Directory property. It generates the list by applying the value of the Filter property. Use Hive tables if your input documents contains complex data types, such as maps and arrays.
Default value: [None] | |||||||||
File action | Required. Select an action to take when the specified file already exists in the directory. Please note the Append file action is supported for SFTP, FTP, and FTPS protocols only. Default value: [None] | |||||||||
File permissions for various users | Set the user and desired permissions. Default value: [None] | |||||||||
Hive Metastore URL | This setting is used to assist in setting the schema along with the database and table setting. If the data being written has a Hive schema, then the Snap can be configured to read the schema instead of manually entering it. Set the value to a Hive Metastore URL where the schema is defined. Default value: [None] | |||||||||
Database | The Hive Metastore database where the schema is defined. See the Hive Metastore URL setting for more information. | |||||||||
Table | The table from which the schema in the Hive Metastore's database must be read. See the Hive Metastore URL setting for more information. | |||||||||
Compression | Required. The compression type to be used when writing the file. | |||||||||
Column paths | Paths where the column values appear in the document. This property is required if the Hive Metastore URL property is empty. Examples:
Default value: [None] | |||||||||
Execute during preview | Enables you to execute the Snap during the Save operation so that the output view can produce the preview data. Default value: Not selected | |||||||||
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