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Vladimir Rodionov edited comment on HBASE-17825 at 2/23/18 7:03 PM: -------------------------------------------------------------------- {quote} How does this change output {quote} It does not change output, but it changes output directory structure. It used to be flat, now it adds subdirectories for every table: If we convert WALs for tables T1, T2, T3 the tool will create separate directories for each table: T1/ T2/ T3/ and files for each table go to this table's subdirectory was (Author: vrodionov): {quote} How does this change output {quote} It does not change output, but it changes output directory structure. It used to be flat, now it adds subdirectories for every table: If we convert WALs for tables T1, T2, T3 the tool will create separate directories for each table: T1/ T2/ T3/ > Backup: further optimizations > ----------------------------- > > Key: HBASE-17825 > URL: https://issues.apache.org/jira/browse/HBASE-17825 > Project: HBase > Issue Type: Improvement > Reporter: Vladimir Rodionov > Assignee: Vladimir Rodionov > Priority: Critical > Labels: backup > Fix For: 3.0.0 > > Attachments: HBASE-17825-v1.patch, HBASE-17825-v2.patch, > HBASE-17825-v3.patch, HBASE-17825-v4.patch > > > Some phases of backup and restore can be optimized: > # WALPlayer support for multiple tables > # Run DistCp once per all tables during backup/restore > The eventual goal: > # 2 M/R jobs per backup/restore -- This message was sent by Atlassian JIRA (v7.6.3#76005)