Ping. Any advice on this?
On Mon, May 12, 2014 at 9:01 AM, Nick Dimiduk <[email protected]> wrote: > Hello, > > Over in Apache HBase, we have an interesting problem that I'm hoping the > shade plugin can help us solve. It all started with a performance > enhancement to reduce garbage by creating a subclass of a protobuf type > [0]. It works fine for us most of the time. However, when using this code > from a Hadoop mapreduce job, things get strange. Due to the permissions on > the parent object and the way Hadoop uses "fat" jars, we now have > classloader troubles [1]. We were able to work around the issue by > documenting the required classpath constructions. However, this is not > possible for all users. This is where the shade plugin comes in. > > I gave shade a shot [2], though I admit I'm not terribly familiar with it, > nor the inner workings of maven. As far as I can tell, the trouble is the > plugin invocation is limited to the single module in our multi-module > project. I think what's happening is shade is doing what I want for the > hbase-protocol module, but I also need it to do bytecode rewriting for the > modules that consume this module as well. Luckily, this detail is not part > of our public API so it should be transparent to our users. > > My patch is posted on [2]. Any pointers/advice is greatly appreciated. > > Thanks in advance, > Nick > > [0]: https://issues.apache.org/jira/browse/HBASE-9867 > [1]: https://issues.apache.org/jira/browse/HBASE-10304 > [2]: https://issues.apache.org/jira/browse/HBASE-11118 >
