[jira] [Comment Edited] (HBASE-10183) Need enforce a reserved range of system tag types

["Andrew Purtell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-10183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13851107#comment-13851107 ] 

Andrew Purtell edited comment on HBASE-10183 at 12/17/13 11:45 PM:
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bq. shall we advise users to start their custom tags with 127 and continue downward 

It wouldn't hurt to suggest that in javadoc somewhere I suppose, but it won't matter what users do with custom tags as long as they don't use values within the system range.


was (Author: apurtell):
bq. shall we advise users to start their custom tags with 127 and continue downward 

It wouldn't hurt to suggest that in javadoc somewhere I suppose, but I won't matter what users do with custom tags as long as they don't use values within the system range.

> Need enforce a reserved range of system tag types
> -------------------------------------------------
>
>                 Key: HBASE-10183
>                 URL: https://issues.apache.org/jira/browse/HBASE-10183
>             Project: HBase
>          Issue Type: Task
>          Components: HFile
>    Affects Versions: 0.98.0
>            Reporter: Jeffrey Zhong
>            Priority: Critical
>             Fix For: 0.98.0
>
>
> If we don't reserve a system tag types now, let's say 0-64(total tag type range is 0-255). We'll have a hard time when introducing a new system tag type in the future because the new tag type may collide with an existing user tag type as tag is open to users as well.
> [~ram_krish], [~anoop.hbase] How do you guys think?
> Thanks!



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