legion | Prepare data for RDBMS ingestion with Hadoop MapReduce

I am writing an airflow dag which will read a bunch of configs from the database and will then execute a series of Python scripts using bash operator. The configs which were read previously will be passed as arguments.

The problem is I am not getting an efficient way to share the config with the other downstream operators. I designed the below dag. Below are my concerns.

1. I am not sure how many DB calls will be made to fetch the values required inside the jinja templates (in the below example).

2. Besides as the config is the same in every task, I am not sure if it's a good idea to fetch it every time from the database. That's why I don't want to use xcom also. I used the airflow variable because the JSON parsing can happen in a single line. But still, the database call issue is there I guess.

I deleted some .py files and some fashion_mnist dataset from several path locations because I had problem in downloading fashion_mnist dataset now there is some .py missing files I got this error:

ImportError Traceback (most recent call last) File C:\ProgramData\Anaconda3\envs\jupyterlab-debugger\lib\site-packages\IPython\core\interactiveshell.py, in run_code: Line 3441: exec(code_obj, self.user_global_ns, self.user_ns)

In [5]: Line 3: from tensorflow import keras

File C:\Users\legion\AppData\Roaming\Python\Python39\site-packages\tensorflow\keras_init_.py, in : Line 19: from . import datasets

File C:\Users\legion\AppData\Roaming\Python\Python39\site-packages\tensorflow\keras\datasets_init_.py, in : Line 13: from . import fashion_mnist

how to solve this problem? I tried this in the environment that I am using

i would like to create a PHP script that delete files from multiple folders/paths. I managed something but I would like to adapt this code for more specific folders.

This is the code:

I'm following a rust tutorial that uses the Specs ECS, and I'm trying to implement it using the legion ECS instead. I love legion and everything went smoothly until I faced a problem.

I'm not sure how to formulate my question. What I am trying to do is create a system that iterates on every entity that has e.g. ComponentA and ComponentB, but that also checks if the entity has ComponentC and do something special if it is the case.

I can do it like so using Specs (example code):

I am using Legion crate and It has an option to serde the world. I am using serde::yaml to convert it to Yaml and it has all the entities in one object (Value). I want to split this into separate entity so that I can write each entity separately in a file. How can iterate over each item in the yaml?

My yaml from Legion looks like,

My program has 4 Computer objects with different values, from Make, Model, Productnumber, Amount, and Shelfnumber. They are coming from a class Computer which extends from class Product. I add the objects to an object list, now I need to get the Shelfnumbers (the last value in the objects) from each object and add a different amount to them depending on what the values are.

The question I have is, is there any way to go through each of the objects in a loop. The current loop only does it for the first computer object, t1. Now I would need it to get the Shelfnumber for t2, t3 and t4 in the same loop.

I.e., get t1's Shelfnumber -> check what the value is -> add to it -> get t2's Shelfnumber and do the same.

I am working on a java jdbcTemplate project in Netbeans and I am having trouble figuring out what is wrong with my equals and hashcode methods overriding the assertEquals test for my Dao. I was instucted that I need to do a "deep comparison" on the object, but from what I can see, my code is already doing that. Below are my different classes involving this issue

Here is my Organization.class:

I'm getting the error,

Element 'item': Character content is not allowed, because the content type is empty

when I try to validate my XML file. I searched for this error, but I didn't find anything matching my problem. When I remove the text between the item elements it works, but I must keep the texts.

Here is my XML :

I am trying to connect kafka to zookeeper on three machines, one is my laptop and other two are virtual machines. When I attempted initiating kafka using