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From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-14265) we should forbidden create table using 'hbase' namespace
Date Thu, 20 Aug 2015 07:41:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Heng Chen updated HBASE-14265:
------------------------------
    Attachment: HBASE-14265.patch

prepare a patch.

> we should forbidden create table using 'hbase' namespace
> --------------------------------------------------------
>
>                 Key: HBASE-14265
>                 URL: https://issues.apache.org/jira/browse/HBASE-14265
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Heng Chen
>         Attachments: HBASE-14265.patch
>
>
> Now, there is no limit for users who can create table under 'hbase' NameSpace. I think
it has some risk.
> Because we use {{TableName.systemTable}} to decide whether this table is System or not.
> But as code,  {{TableName.systemTable}} will be true, if NS equals "hbase'
> {code}
>  if (Bytes.equals(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME, namespace)) {
>         this.namespace = NamespaceDescriptor.SYSTEM_NAMESPACE_NAME;
>         this.namespaceAsString = NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR;
>         this.systemTable = true;
>       } 
> {code}
>  
> And we treat system table and normal table differently. 
> For example,  https://issues.apache.org/jira/browse/HBASE-14257 will flush fast if table
belong to system table.



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