Data Caching in Apache Spark | Optimizing performance using Caching | When and when not to cache

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[@gurumoorthysivakolunthu9878]

Very detailed... best ever explanation of a topic, Sir... This is amazing... Thank you, Sir....

[@sandeepnarwal8782]

Best Video on UA-cam

[@williamhaque6183]

Wonderful. Cleared a lot of doubt.

[@machisri]

sir, Could you make a video on Generative AI in Databricks ( LLM, LongChain, DBRX, HuggingFace, MLFlow)

[@andre__luiz__]

the best teacher!!!!!

[@srinubathina7191]

Wow super content
Thank You Sir

[@rajat_ComedyCorner]

Great job, Sir

[@soumikdas7709]

Nice explanation

[@jayaananthjayaram9228]

can you post how to use iceberg in emr or using pyspark

[@nagabadsha]

Well explained, Thanks

[@omkarm7865]

great explanation

[@jay_rana]

where is the next part of the video, can you drop the link ?

[@balaji348]

Sir, please share writing spark streaming from Kafka topic and with consumer record and again sending that record to another topic

[@jsnode7696]

I took your udemy course, its great. I have a doubt
I have a hive table, having parquet files with different schema(2 columns varying in data type)
when reading the data as dataframe, and writing it to another table, I am getting error:Parquet files cannot be converted
How to handle with schema data type mismatch ?

[@gautam0086]

Very informative, thx

[@nareshdulam58]

Are you going to answer rest of question on what happens to cache if table/view data modified?

[@ScholarNest]

It is automatically refreshed

[@nareshdulam58]

Thank you @@ScholarNest .

[@Ramakrishna410]

How it is automatically refreshed..can you make an video on modified cache

[@Ramakrishna410]

It will bring only from memory after cache, but how spark onows if new data in source table when we are not reading the table..

[@prasadpatil5397]

When actual data changes, the resulted cache data is immediately invalidated.
Any query after that onwords have used, the cache results set will query the database again and re populate the cache. So this way cache data remain synchronised with source dataframe.

[@debojitpaul5779]

Where I acn find the whole video series?

[@karthikeyanr1171]

Although the content is good, Too lengthy video to explain this concept
This whole concept could be covered shortly