Error while submitting PySpark Application through Livy REST API

I want to submit a Pyspark application to Livy through REST API to invoke HiveWarehouse Connector. Based on this answer in Cloudera community https://community.cloudera.com/t5/Community-Articles/How-to-Submit-Spark-Application-through-Livy-RE… I created a test1.json as follows { “jars”: [“hive-warehouse-connector-assembly-1.0.0.3.1.0.0-78.jar”], “pyFiles”: [“pyspark_hwc-1.0.0.3.1.0.0-78.zip”], “file”: [“test1.py”] } and call InvokeHTTP. But I get this error “”Cannot deserialize instance of java.lang.String out of START_ARRAY token\n…

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Rails “TypeError (no implicit conversion of nil into String)” when loading images using image_tag, activeStorage and “has_many_attached”

I am trying to follow this tutorial to upload multiple images for my model: https://www.youtube.com/watch?v=A23zCePXe74 The uploading and saving of the images into the database using activeStorage seems to work, but when I go to the show page the images are not rendered. I tried following these steps in a fresh rails app and the…

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swift vapor shared API not communicating using shared API

I have a shared API named “shared API” between may vapor project “SchrodingerAppServer” and regular swift app “Pizaco”. The common path for the shared API is – /Users/apple/jac/SchrodingerAppServer/Sources/App/SharedAPI. i) The screenshot of pizza file for the vapour project i.e. SchrodingerAppServer is – ii) The screenshot of Viewcontroller for the iOS project i.e.Pizaco (with error) is…

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swift vapor shared API not communicating using shared API

I have a shared API named “shared API” between may vapor project “SchrodingerAppServer” and regular swift app “Pizaco”. The common path for the shared API is – /Users/apple/jac/SchrodingerAppServer/Sources/App/SharedAPI. i) The screenshot of pizza file for the vapour project i.e. SchrodingerAppServer is – ii) The screenshot of Viewcontroller for the iOS project i.e.Pizaco (with error) is…

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swift vapor shared API not communicating using shared API

I have a shared API named “shared API” between may vapor project “SchrodingerAppServer” and regular swift app “Pizaco”. The common path for the shared API is – /Users/apple/jac/SchrodingerAppServer/Sources/App/SharedAPI. i) The screenshot of pizza file for the vapour project i.e. SchrodingerAppServer is – ii) The screenshot of Viewcontroller for the iOS project i.e.Pizaco (with error) is…

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Multicasting in C macOS

Multicast between 2 applications on same host(macOS). The example is based on launching 2 applications Appli_A who join the same multicast group and are listening of an incoming datagram packet which is beeing send by the application Appli_B but there is only one of the 2 applications Appli_A receiving the packet and not both. Since…

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