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stack commented on HBASE-21154: ------------------------------- [~mdrob] One thought is that adding to hbase:meta schema is tough given its hard-coded at the moment (to be fixed so we can split meta). Was thinking we could put namespace in the new-to-branch-2 'table' column-family. Currently it has a single column, 'table:state'. Could add a column 'table:namepace'. This is an ugly hack but better than a table that hangs out in assignment purgatory. > Remove hbase:namespace table; fold it into hbase:meta > ----------------------------------------------------- > > Key: HBASE-21154 > URL: https://issues.apache.org/jira/browse/HBASE-21154 > Project: HBase > Issue Type: Improvement > Components: meta > Reporter: stack > Priority: Major > > Namespace table is a small system table. Usually it has two rows. It must be > assigned before user tables but after hbase:meta goes out. Its presence > complicates our startup and is a constant source of grief when for whatever > reason, it is not up and available. In fact, master startup is predicated on > hbase:namespace being assigned and will not make progress unless it is up. > Lets just add a new 'ns' column family to hbase:meta for namespace. > Here is a default ns table content: > {code} > hbase(main):023:0* scan 'hbase:namespace' > ROW > COLUMN+CELL > default > column=info:d, timestamp=1526694059106, > value=\x0A\x07default > hbase > column=info:d, timestamp=1526694059461, > value=\x0A\x05hbase > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)