Avik Dey created HDFS-5442:
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Summary: Zero loss HDFS data replication for multiple datacenter
Key: HDFS-5442
URL: https://issues.apache.org/jira/browse/HDFS-5442
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Avik Dey
Hadoop is architected to operate efficiently at scale for normal hardware
failures within a datacenter. Hadoop is not designed today to handle datacenter
failures. Although HDFS is not designed for nor deployed in configurations
spanning multiple datacenters, replicating data from one location to another is
common practice for disaster recovery and global service availability. There
are current solutions available for batch replication using data copy/export
tools. However, while providing some backup capability for HDFS data, they do
not provide the capability to recover all your HDFS data from a datacenter
failure and be up and running again with a fully operational Hadoop cluster in
another datacenter in a matter of minutes. For disaster recovery from a
datacenter failure, we should provide a fully distributed, zero data loss, low
latency, high throughput and secure HDFS data replication solution for multiple
datacenter setup.
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