Hi Patrick
What does that means for drop YARN 2.2? seems codes are still there.
You mean if build upon 2.2 it will break, and won't and work right? Since the
home made akka build on scala 2.10 are not there. While, if for this case, can
we just use akka 2.3-M1 which run on protobuf 2.5 for replacement?
Best Regards,
Raymond Liu
-----Original Message-----
From: Patrick Wendell [mailto:[email protected]]
Sent: Thursday, December 12, 2013 4:21 PM
To: [email protected]
Subject: Scala 2.10 Merge
Hi Developers,
In the next few days we are planning to merge Scala 2.10 support into Spark.
For those that haven't been following this, Prashant Sharma has been
maintaining the scala-2.10 branch of Spark for several months. This branch is
current with master and has been reviewed for merging:
https://github.com/apache/incubator-spark/tree/scala-2.10
Scala 2.10 support is one of the most requested features for Spark - it will be
great to get this into Spark 0.9! Please note that *Scala 2.10 is not binary
compatible with Scala 2.9*. With that in mind, I wanted to give a few
heads-up/requests to developers:
If you are developing applications on top of Spark's master branch, those will
need to migrate to Scala 2.10. You may want to download and test the current
scala-2.10 branch in order to make sure you will be okay as Spark developments
move forward. Of course, you can always stick with the current master commit
and be fine (I'll cut a tag when we do the merge in order to delineate where
the version changes). Please open new threads on the dev list to report and
discuss any issues.
This merge will temporarily drop support for YARN 2.2 on the master branch.
This is because the workaround we used was only compiled for Scala 2.9. We are
going to come up with a more robust solution to YARN 2.2 support before
releasing 0.9.
Going forward, we will continue to make maintenance releases on branch-0.8
which will remain compatible with Scala 2.9.
For those interested, the primary code changes in this merge are upgrading the
akka version, changing the use of Scala 2.9's ClassManifest construct to Scala
2.10's ClassTag, and updating the spark shell to work with Scala 2.10's repl.
- Patrick
