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From "Ajay Kidave (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1331) Owl Hadoop Table Management Service
Date Mon, 12 Apr 2010 18:09:53 GMT

     [ https://issues.apache.org/jira/browse/PIG-1331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ajay Kidave updated PIG-1331:
-----------------------------

    Attachment: owl.contrib.4.tar.gz

The test issue was because the jettyrunner jar had not been copied into contrib/owl/ci directory.
The manual steps required are

cp jetty-runner-7.0.0.pre5.jar contrib/owl/ci
cp log4j-1.2.15.jar contrib/owl/java/lib
chmod +x contrib/owl/bin/owl.sh contrib/owl/ci/derby_initialize_schema.sh contrib/owl/ci/derby_cleanup.sh
contrib/owl/ci/jetty_check.sh contrib/owl/ci/jetty_start.sh contrib/owl/ci/jetty_stop.sh


Attached an updated patch with the javadoc and findbugs issues fixed.

> Owl Hadoop Table Management Service
> -----------------------------------
>
>                 Key: PIG-1331
>                 URL: https://issues.apache.org/jira/browse/PIG-1331
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.8.0
>            Reporter: Jay Tang
>         Attachments: anttestoutput.tgz, build.log, ivy_version.patch, owl.contrib.3.tgz,
owl.contrib.4.tar.gz
>
>
> This JIRA is a proposal to create a Hadoop table management service: Owl. Today, MapReduce
and Pig applications interacts directly with HDFS directories and files and must deal with
low level data management issues such as storage format, serialization/compression schemes,
data layout, and efficient data accesses, etc, often with different solutions. Owl aims to
provide a standard way to addresses this issue and abstracts away the complexities of reading/writing
huge amount of data from/to HDFS.
> Owl has a data access API that is modeled after the traditional Hadoop !InputFormt and
a management API to manipulate Owl objects.  This JIRA is related to Pig-823 (Hadoop Metadata
Service) as Owl has an internal metadata store.  Owl integrates with different storage module
like Zebra with a pluggable architecture.
>  Initially, the proposal is to submit Owl as a Pig contrib project.  Over time, it makes
sense to move it to a Hadoop subproject.

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