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From "Mattmann, Chris A (388J)" <chris.a.mattm...@jpl.nasa.gov>
Subject Re: [jira] [Commented] (GORA-22) Upgrade cassandra backend to cassandra 0.7
Date Sat, 23 Jul 2011 00:31:42 GMT
Hi Alexis,

Why do you need to add a label to add the docs?

Not sure what's up with the permissions. Please send 
an email to infrastructure@apache.org, or file a JIRA issue 
at https://issues.apache.org/jira/browse/INFRA to check into it.



On Jul 22, 2011, at 5:14 PM, Alexis wrote:

> Hi,
> I created an account (user name is Alexis) on cwiki.apache.org. How do
> I edit the page? It says "You are only permitted to add personal
> labels on this page." when I try to add a "label".
> Meanwhile, this is the doc i have so far:
> http://techvineyard.blogspot.com/2011/02/gora-orm-framework-for-hadoop-jobs.html#Cassandra_in_Gora
> Alexis
> On Fri, Jul 22, 2011 at 4:27 PM, Henry Saputra <henry.saputra@gmail.com> wrote:
>> Alexis, could you add an entry in the Gora wiki:
>> https://cwiki.apache.org/confluence/display/GORA/Index to help
>> understand the change made to the Cassanndra backend code.
>> The changes are big and not much comment given in the header of the
>> class so its kind of hard to follow what was the intention of the
>> changes.
>> - Henry
>> On Fri, Jul 22, 2011 at 4:08 PM, Alexis <alexis.detreglode@gmail.com> wrote:
>>> Hi,
>>> Sorry I have committed my changes before I had the go ahead of the
>>> other peers. I am still learning the opensource etiquette. I thought
>>> it was fine to replace the code since I believe the Cassandra part was
>>> broken. I personnally never managed to use the code "as is". It was
>>> mentioned to me the entire backend needed to be rewritten:
>>> See Julien's comment in this page:
>>> http://techvineyard.blogspot.com/2011/01/trying-nutch-20-hbase-storage.html:
>>> "The Cassandra backend in GORA is in need of serious work and is not
>>> considered fully functional, IIRC it is not thread safe. There has
>>> been a new release of Cassandra in the meantime and I am pretty sure
>>> that it would be quicker to simply write a new backend for GORA based
>>> on the latest release..."
>>> Now we have 2 options:
>>> - revert the modifications and go back to a broken state
>>> - test the new version and iterate from there. I'm sure it's not
>>> perfect but at least we have a seemingly working state to start with.
>>> Sorry for the bad surprise.
>>> On Fri, Jul 22, 2011 at 8:21 AM, Chris A. Mattmann (JIRA)
>>> <jira@apache.org> wrote:
>>>>    [ https://issues.apache.org/jira/browse/GORA-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13069581#comment-13069581
>>>> Chris A. Mattmann commented on GORA-22:
>>>> ---------------------------------------
>>>> One note though: Alexis, it seems like you've replaced and/or added upon
somehow to the cassandra backend. It was my impression we had one already or that it was functioning/etc.
What does your patch do that improves or adds to it? Would be great to explain for the benefit
of others watching.
>>>>> Upgrade cassandra backend to cassandra 0.7
>>>>> ------------------------------------------
>>>>>                 Key: GORA-22
>>>>>                 URL: https://issues.apache.org/jira/browse/GORA-22
>>>>>             Project: Gora
>>>>>          Issue Type: Improvement
>>>>>          Components: storage
>>>>>    Affects Versions: 0.2-incubating
>>>>>            Reporter: Julien Nioche
>>>>>             Fix For: 0.2-incubating
>>>>>         Attachments: gora-cassandra-mapping.xml, gora-cassandra-mapping.xml,
gora.patch, goraCassandra.patch
>>>> --
>>>> This message is automatically generated by JIRA.
>>>> For more information on JIRA, see: http://www.atlassian.com/software/jira

Chris Mattmann, Ph.D.
Senior Computer Scientist
NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
Office: 171-266B, Mailstop: 171-246
Email: chris.a.mattmann@nasa.gov
WWW:   http://sunset.usc.edu/~mattmann/
Adjunct Assistant Professor, Computer Science Department
University of Southern California, Los Angeles, CA 90089 USA

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