备份策略选择

下表给出了各种备份策略的比较。

  gpfdist hdfs pg_dump Raw Data Backupv
Parallel Yes Yes, Dynamic No No
Incremental Backup No Yes No Yes
Backup Location Local FS Hdfs FS Local FS Local FS, HDFS
Format Text, CSV Text, CSV Text, Tar, Custom Depends on format of row data
Compression No No Yes Only support custom format
Scalability Good Very Good Good
Performance Fast loading, Fast unloading Fast loading, Fast unloading
Fast (Just file copy)