- Mastering Hadoop 3
- Chanchal Singh Manish Kumar
- 86字
- 2025-04-04 14:54:49
Advantages of erasure coding
- Saving storage: Data which terms as cold data still takes 200 percent extra space on HDFS. Erasure coding reduces the storage overhead for data by more than 50%.
- Configurable policy: Admin can mark data as hot or cold by just running simple command. Data marked as hot will be replicated according to replication factor configured.
- Easily recoverable: Even if some percentage of data is lost, with the help of erasure code one can easily recover it.