Showing posts with the label object storage

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How to Check Column Nulls and Replace: Pandas

Here is a post that shows how to count Nulls and replace them with the value you want in the Pandas Dataframe. We have explained the process in two steps - Counting and Replacing the Null values. Count null values (column-wise) in Pandas ## count null values column-wise null_counts = df.isnull(). sum() print(null_counts) ``` Output: ``` Column1    1 Column2    1 Column3    5 dtype: int64 ``` In the above code, we first create a sample Pandas DataFrame `df` with some null values. Then, we use the `isnull()` function to create a DataFrame of the same shape as `df`, where each element is a boolean value indicating whether that element is null or not. Finally, we use the `sum()` function to count the number of null values in each column of the resulting DataFrame. The output shows the count of null values column-wise. to count null values column-wise: ``` df.isnull().sum() ``` ##Code snippet to count null values row-wise: ``` df.isnull().sum(axis=1) ``` In the above code, `df` is the Panda

AWS Block Vs Object Storage Top Differences

In AWS, Block and Object are two types of storage. I have given differences between these two. Why because storage is a prime concept in the cloud environment. Object Vs Block Storage Why are these names different? Because these two are different storage types - Object and Block. Object Storage Object means it is a single object. You are not dividing here. In the context of AWS, object storage helps your file to store as-is. How big it does not matter. Let your file size is 10MB. Then, it saves as a 10 MB file. What happens when you update a 30MB file. It deletes the old object and creates a brand new one. For small changes, you need to update the whole file. So, it utilizes a lot of resources. Object storage is much better for big files and very few changes. AWS manages object storage. AWS has full control over Object storage. Object Vs Block Block Storage Block storage divides your file into blocks. You have selected a block size of 512 bytes. If you want to upload a 10MB file, it th