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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6894) Adding metadata to a table in the shell is both arcane and painful
Date Mon, 29 Oct 2012 23:16:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HBASE-6894:
------------------------------------

    Release Note: 
HBase shell 'create' and 'alter' commands have been updated as follows:
* More arguments for 'alter' can now be specified at the same time (e.g. OWNER with other
fields, etc.).
* Using METHOD => 'table_att' is no longer necessary to set table properties during CREATE/ALTER
(e.g. "alter 't1', OWNER => 'johndoe', CONFIG => { 'mykey' => 'myvalue' }").
* Warnings are now issued for ignored/superseded arguments (e.g. "create 't1', 'cf', SPLITS
=> ['10', '15'], SPLITALGO => 'SomeAlgo', NUMREGIONS => 15", or 
"create 't1', { NAME => 'cf', MAX_FILESIZE => 50000 }", or typos e.g. "alter 't1', 'READONLY'
=> true, 'MAX_FLESIZE' => 123567")
* One can no longer create a table without column families by supplying some non-cf argument
e.g. MAX_FILESIZE.
* Some minor bug fixes.
    
> Adding metadata to a table in the shell is both arcane and painful
> ------------------------------------------------------------------
>
>                 Key: HBASE-6894
>                 URL: https://issues.apache.org/jira/browse/HBASE-6894
>             Project: HBase
>          Issue Type: Bug
>          Components: shell
>    Affects Versions: 0.96.0
>            Reporter: stack
>            Assignee: Sergey Shelukhin
>              Labels: noob
>         Attachments: HBASE-6894.patch, HBASE-6894.patch, HBASE-6894.patch, HBASE-6894-v2.patch,
HBASE-6894-v3-squashed.patch
>
>
> In production we have hundreds of tables w/ whack names like 'aliaserv', 'ashish_bulk',
'age_gender_topics', etc.  It be grand if you could look in master UI and see stuff like owner,
eng group responsible, miscellaneous description, etc.
> Now, HTD has support for this; each carries a dictionary.  Whats a PITA though is adding
attributes to the dictionary.  Here is what seems to work on trunk (though I do not trust
it is doing the right thing):
> {code}
> hbase> create 'SOME_TABLENAME', {NAME => 'd', VERSION => 1, COMPRESSION =>
'LZO'}
> hbase> # Here is how I added metadata
> hbase> disable 'SOME_TABLENAME'
> hbase> alter 'SOME_TABLENAME', METHOD => 'table_att', OWNER => 'SOMEON', CONFIG
=> {'ENVIRONMENT' => 'BLAH BLAH', 'SIZING' => 'The size should be between 0-10K most
of the time with new URLs coming in and getting removed as they are processed unless the pipeline
has fallen behind', 'MISCELLANEOUS' => 'Holds the list of URLs waiting to be processed
in the parked page detection analyzer in ingestion pipeline.'}
> ...
> describe...
> enable...
> {code}
> The above doesn't work in 0.94.  Complains about the CONFIG, the keyword we are using
for the HTD dictionary.
> It works in 0.96 though I'd have to poke around some more to ensure it is doing the right
thing.
> But this METHOD => 'table_att' stuff is really ugly.... can we fix it?
> And I can't add table attributes on table create seemingly.
> A little bit of thought and a bit of ruby could clean this all up.

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