[jira] [Resolved] (HBASE-22758) Remove the unneccesary info cf deletion in DeleteTableProcedure#deleteFromMeta

["Zheng Hu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-22758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Hu resolved HBASE-22758.
------------------------------
      Resolution: Fixed
        Assignee: Zheng Hu
    Hadoop Flags: Reviewed

Pushed to all branch-2.x & master, Thanks [~stack] for reviewing. 

> Remove the unneccesary info cf deletion in DeleteTableProcedure#deleteFromMeta
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-22758
>                 URL: https://issues.apache.org/jira/browse/HBASE-22758
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Zheng Hu
>            Assignee: Zheng Hu
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 2.0.6, 2.2.1, 2.1.6
>
>
> I saw the deleteFromMeta() method in DeleteTableProcedure & TruncateTableProcedure:
> {code}
> protected static void deleteFromMeta(final MasterProcedureEnv env,
>     final TableName tableName, List<RegionInfo> regions) throws IOException {
>   MetaTableAccessor.deleteRegions(env.getMasterServices().getConnection(), regions);
>   // Clean any remaining rows for this table.
>   cleanAnyRemainingRows(env, tableName);
>   // clean region references from the server manager
>   env.getMasterServices().getServerManager().removeRegions(regions);
>   // Clear Favored Nodes for this table
>   FavoredNodesManager fnm = env.getMasterServices().getFavoredNodesManager();
>   if (fnm != null) {
>     fnm.deleteFavoredNodesForRegions(regions);
>   }
> }
> {code}
> 1. deleteRegions : delete the info column family first;
> 2. cleanAnyRemainingRows : delete the whole row for regions then.
> In fact, we can only change to delete the whole row, no need the extra info cf deletion any more.



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