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Subject: Re: [jira] [Commented] (TAJO-337) Generic StorageManager to provide
 common storage methods
From: yshan <yshan@gruter.com>
In-Reply-To: <JIRA.12681498.1385526072000.44468.1425947978177@Atlassian.JIRA>
Date: Tue, 10 Mar 2015 10:57:53 +0900
Cc: issues@tajo.incubator.apache.org
Message-Id: <A876F884-640A-4A10-AD96-C57FB10AEBB5@gruter.com>
References: <JIRA.12681498.1385526072000@Atlassian.JIRA>
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To: dev@tajo.apache.org

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Good.
I eagerly anticipate the doc.
Thank you :)

-- Yeon-su Han / yshan@gruter.com Gruter, Inc., R&D Team=20
www.gruter.com Enjoy Connecting


> 2015. 3. 10., =BF=C0=C0=FC 9:39, Hyunsik Choi (JIRA) <jira@apache.org> =
=C0=DB=BC=BA:
>=20
>=20
>    [ =
https://issues.apache.org/jira/browse/TAJO-337?page=3Dcom.atlassian.jira.p=
lugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D14353981#c=
omment-14353981 ]=20
>=20
> Hyunsik Choi commented on TAJO-337:
> -----------------------------------
>=20
> Currently, I'm writing the design draft about how I achieve this =
feature. I'll share the doc soon.
>=20
>> Generic StorageManager to provide common storage methods
>> --------------------------------------------------------
>>=20
>>                Key: TAJO-337
>>                URL: https://issues.apache.org/jira/browse/TAJO-337
>>            Project: Tajo
>>         Issue Type: Improvement
>>         Components: catalog, storage
>>           Reporter: Hyunsik Choi
>>           Assignee: Hyunsik Choi
>>=20
>> Currently, Tajo uses HDFS as a primary storage. But, as a data =
warehouse system, Tajo should easily support various data sources.
>> For this, I propose a generic storage handler interface that provides =
common storage methods as follows:
>> * splitting input data
>> * locality
>> * accessing catalog (if providing)
>> * creating a table
>> * removing a table
>> * adding default table properties and validating properties
>> * committing, rollback, and clean up output tables
>> * getting table physical information like table volumes and others
>> * managing connection pool for connection-based storages
>> * adding storage-specified rewrite rules
>> * adding hooks for query phases
>> * physical properties like instant random access, indexible, read =
throughput, and write throughput
>=20
>=20
>=20
> --
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