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Hive, mail # user - Hive, datanucleus, jdbc, localmode.


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Re: Hive, datanucleus, jdbc, localmode.
Edward Capriolo 2013-12-28, 16:02
I do not think so. Local mode, just implies the job tracker is local (and
some of the temp storage directories) it does not imply hive will use
hadoop without forking.
On Sat, Dec 28, 2013 at 10:43 AM, Jay Vyas <[EMAIL PROTECTED]> wrote:

> Thanks... But are you sure this is the only way? Or is there some magic
> way to run hive in local mode that we both are missing out on ?:)...
>
> - isn't hive in local mode supposed to be run simply via the jdbc://hive
> URL which runs local mode... Or maybe by the fork config parameter?
>
> - For example see the parameters in this file:
>
>
> https://github.com/riptano/brisk/blob/master/resources/hive/conf/hive-site.xml
>
>
> On Dec 28, 2013, at 10:22 AM, Edward Capriolo <[EMAIL PROTECTED]>
> wrote:
>
> You can follow along to what I do here.
>
> https://github.com/edwardcapriolo/hive_test
>
> Essentially hive requires a HADOOP_HOME because it always wants to fork a
> bin/hadoop process. Hive-test helps you unpack hadoop inside target and
> change your hadoop_home to some other directory.
>
> It would be nice if there was some other way to do this.
>
>
> On Fri, Dec 27, 2013 at 10:27 PM, Jay Vyas <[EMAIL PROTECTED]> wrote:
>
>> Hi Hive:
>>
>> I'm attempting to create a robust eclipse based dev environment for
>> testing my hive jobs in localmode however I run into classnotfound errors
>> depending on which maven dependencies I use. Also, it seems when I change
>> these dependencies from hive 0.12 to hive 0.11, I get other errors related
>> to hive trying to launch jobs via calling /usr/bin/hadoop.
>>
>> This I am stuck: I can't run hive 12 in local java mode because of subtle
>> datanucleus class and API inconsistencies which are tough to resolve, and
>> when going to hive 11, it seems local mode is not natively detected via the
>> jdbc URL...
>>
>> So I have 2 questions:
>>
>> 0) how does hive 12 versus 11 implement local mode differently ?
>>
>> And
>>
>> 1) What is the right way to in hive in pure java/ local environments?
>>
>> The hive book suggests modifying configuration properties, for local
>> mode..
>>
>> but I also have found  that in hive 0.12 , using the jdbc://hive
>> connection URL automagically launches jobs in local mode..
>>
>> However in 0.11 , I see calls to /usr/bin/hadoop when running java
>> classes in local eclipse environment.
>>
>> Thanks!
>>
>> FYI to see an example of my pom.xml, you can checkout the
>> github://jayunit100/bigpetstore pom.xml file.
>>
>
>