Hadoop (HDFS) Connector - Examples - Mule 4
Create a Text File in HDFS
The following example shows how to use the connector to create a text file in HDFS:
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In Anypoint Studio, click File > New > Mule Project, name the project, and click Finish.
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In the Mule Palette search field, type
http. -
Drag the HTTP > Listener operation to the canvas.
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In General settings, click the green plus sign (+) to the right of Connector Configuration.
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Click OK to accept the default settings.
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In Path, enter
/createFile. -
In the Mule Palette search field, type
hdfs. -
Drag the HDFS Write operation to the canvas.
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Set Path to
/test.txtand leave the default values for the other options.
This is the path of the file that HDFS creates. -
Right-click in the project canvas and select Run project to start the application.
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From an HTTP client such as Postman or curl, make a POST request, set the value for
Content-type:plain/texttolocalhost:8081/createFile, and add the content you want to write as a payload, as shown in the following example:
curl -X POST -H "Content-Type:plain/text" -d "payload to write to file" localhost:8090/createFile -
Use an HDFS explorer to verify that the
/test.txtfile exists and contains your content.