How spark will handles 1TB data if it has cluster of 1GB memory ?

[abd]

If my cluster memory is 1GB for example and my data is 1TB how Spark will handle it?

If it is in memory computing how does it handles the data that is greater than the memory size ?

[abd]

@Kaniz Fatma​ @Cedric Law Hing Ping​ 

[Cedric · Accepted solution]

Hi @Abdullah Durrani​,

Spark workers will spill the data on disk if the dataset is larger than the memory size.

I'd advise you to follow the best practices page https://docs.databricks.com/clusters/cluster-config-best-practices.html#cluster-sizing-consideration... to determine what cluster size you should configure for your use case.