[jira] [Commented] (HBASE-22947) Client Should Prompt For Additional Confirmation on System Table DDL

["Esteban Gutierrez (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-22947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16918747#comment-16918747 ] 

Esteban Gutierrez commented on HBASE-22947:
-------------------------------------------

[~belugabehr], can you please elaborate more on this feature? We strictly disallow to disable the {{hbase:meta}} table:

org.apache.hadoop.hbase.master.procedure.DisableTableProcedure#prepareDisable:
{code}
 private boolean prepareDisable(final MasterProcedureEnv env) throws IOException {
    boolean canTableBeDisabled = true;
    if (tableName.equals(TableName.META_TABLE_NAME)) {
      setFailure("master-disable-table", new ConstraintException("Cannot disable catalog table"));
      canTableBeDisabled = false;
{code}

Probably we should add {{hbase:namespace}} there too.



> Client Should Prompt For Additional Confirmation on System Table DDL
> --------------------------------------------------------------------
>
>                 Key: HBASE-22947
>                 URL: https://issues.apache.org/jira/browse/HBASE-22947
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>    Affects Versions: 2.1.0, 2.0.0
>            Reporter: David Mollitor
>            Priority: Minor
>
> If a user is going to perform a DDL/disable operation on a system table, the client should print a warning to the screen warning of the risks and prompt something like "Are you sure?"



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