Why it matters

Backup + restore ensures recovery. Standard practice.

Advertisement

The architecture

Metastore: DB backup.

Data: HDFS snapshots or S3 versioning.

Hive backupMetastore DB backupregularData snapshotsHDFS/S3Restore drilltest regularlyTesting restore is where most orgs fall short
Backup layers.
Advertisement

How it works end to end

Metastore DB: nightly + WAL.

Data: incremental snapshots.

Coordinated restore: metadata + data must match version.

Test drills.