What is the releatiohship between yarn container and Block size in hdfs?

[#1]

What is the releatiohship between yarn container and Block size in hdfs

[#2 · Accepted solution]

@ANSARI FAHEEM AHMEDyarn container is a collection of physical resources like CPU,memory and disk.while HDFS block size is chunk on file system where actual read and write happen.

[#3]

@Rajkumar Singh: Yes, means no relation.

[#4]

I mean a bit relation is there. Normally MapReduce will create one Map task for every block. ( Unless small split merge is switched on ). And one map task will run in one container. So half the block size means twice the number of containers running. ( Again not always true since Pig/Tez merge small blocks together using something called the CombineFileInputFormat)