[ 
https://issues.apache.org/jira/browse/HBASE-11118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14032427#comment-14032427
 ] 

André Kelpe commented on HBASE-11118:
-------------------------------------

[[email protected]] Cascading uses the JobClient to submit the jobs on the fly, 
but we don't call the hadoop shell wrapper for each job, like hive does. All 
submission is handled internally. The initial program gets started with 
hadoop/yarn jar myJar, and then we handle everything ourselves. In the lingual 
case, it is even more complicated, since we fetch jars dynamically at runtime 
and add them to the classpath of the jobs, which means we cannot know upfront, 
if the job is going to use cascading-hbase or not.

> non environment variable solution for "IllegalAccessError: class 
> com.google.protobuf.ZeroCopyLiteralByteString cannot access its superclass 
> com.google.protobuf.LiteralByteString"
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-11118
>                 URL: https://issues.apache.org/jira/browse/HBASE-11118
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.2
>            Reporter: André Kelpe
>            Priority: Blocker
>             Fix For: 0.99.0, 0.98.4
>
>         Attachments: HBASE-11118-0.98.patch.gz, HBASE-11118-trunk.patch.gz, 
> shade_attempt.patch
>
>
> I am running into the problem described in 
> https://issues.apache.org/jira/browse/HBASE-10304, while trying to use a 
> newer version within cascading.hbase 
> (https://github.com/cascading/cascading.hbase).
> One of the features of cascading.hbase is that you can use it from lingual 
> (http://www.cascading.org/projects/lingual/), our SQL layer for hadoop. 
> lingual has a notion of providers, which are fat jars that we pull down 
> dynamically at runtime. Those jars give users the ability to talk to any 
> system or format from SQL. They are added to the classpath  programmatically 
> before we submit jobs to a hadoop cluster.
> Since lingual does not know upfront , which providers are going to be used in 
> a given run, the HADOOP_CLASSPATH trick proposed in the JIRA above is really 
> clunky and breaks the ease of use we had before. No other provider requires 
> this right now.
> It would be great to have a programmatical way to fix this, when using fat 
> jars.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Reply via email to