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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11118) non environment variable solution for "IllegalAccessError: class com.google.protobuf.ZeroCopyLiteralByteString cannot access its superclass com.google.protobuf.LiteralByteString"
Date Thu, 19 Jun 2014 18:42:26 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-11118:
--------------------------

    Attachment: 11118.bytestringer.txt

This seems to work.  Verified using Nicks nice https://github.com/ndimiduk/hbase-fatjar project.

Adds new ByteStringer class that on class loading tries to make use of HBaseZeroCopyByteString.
 If fails to load -- IllegalAccessError -- then we set flag and everafter, do ByteString.copyFrom
instead.

Patch is big because lots of HBZCBS replacements.

My other patch moving HBZCBS to hbase-server wouldn't have worked given mr classes are in
hbase-server (duh!) and these are the gateway used that brings on this problem (need to work
on breaking out the hbase-mapreduce module).

> 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
>
>         Attachments: 11118.bytestringer.txt, 1118.suggested.undoing.optimization.on.clientside.txt,
1118.suggested.undoing.optimization.on.clientside.txt, 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.



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