this is example for 100TB you can modify according to your need
To read 100 TB of data in 5 minutes with a Hadoop cluster that has a read/write speed of 100 MB/s and a replication factor of 3, you would need approximately 200 data nodes.
Here's the calculation:
- Total data to be read: 100 TB
- Time to read the data: 5 minutes = 300 seconds
- Read speed per node: 100 MB/s
- Replication factor: 3
The total amount of data that can be read in 300 seconds with a single 100 MB/s node is:
- 100 MB/s * 300 s = 30 TB
Since the replication factor is 3, the actual amount of unique data that can be read is 1/3 of that, which is 10 TB.
To read 100 TB of data, you would need:
- 100 TB / 10 TB per node = 10 nodes
However, since the data is replicated 3 times, the total number of nodes required is:
- 10 nodes * 3 replicas = 30 nodes
Therefore, you would need approximately 200 data nodes to read 100 TB of data in 5 minutes from your Hadoop cluster with a 100 MB/s read/write speed and a replication factor of 3.
AviralBhardwaj