Performance and scalability limitations to consider for replication policies
Before you create an HDFS replication policy, you must consider a few performance and scalability limitations.
The performance and scalability limitations include:
- Maximum number of files for a single replication job is 100 million.
- Maximum number of files for a replication policy that runs more frequently than once in 8 hours is 10 million.
- Throughput of the replication job depends on the absolute read and write throughput of the source and destination clusters.
- Regular rebalancing of your HDFS clusters is required for efficient operation of replications.
