It's a bug in sbt and/or the sbt-assembly plugin. AFAIK, nobody has isolated yet exactly what triggers the problem (only a minority of users run into it), but there are workarounds and an eventual fix. The fix appears to be PR #266 <https://github.com/apache/incubator-spark/pull/266>. Until that is merged, the combination of assembly/assembly, tools/assembly and examples/assembly will get you to the same state as running the top-level assembly target, but a lot faster if you are running into the slow assembly bug. There is also an assemble-deps<https://github.com/apache/incubator-spark/pull/66>that can be used by Spark developers.
On Wed, Jan 22, 2014 at 11:15 AM, dachuan <[email protected]> wrote: > Hi, community, > > I have run sbt/sbt assembly, but it is stuck at the following place for 30 > minutes. > > Does anybody know what's the root cause? my machine's memory size is 4GB. > > thanks, > dachuan. > > [info] Packaging > C:\cygwin\home\dachuan\incubator-spark\assembly\target\scala-2.10\spark-assembly-0.9.0-incubating-SNAPSHOT-hadoop1.0.4.jar > ... > [info] Packaging > C:\cygwin\home\dachuan\incubator-spark\examples\target\scala-2.10\spark-examples-assembly-0.9.0-incubating-SNAPSHOT.jar > ... > (STUCK HERE) > > -- > Dachuan Huang > Cellphone: 614-390-7234 > 2015 Neil Avenue > Ohio State University > Columbus, Ohio > U.S.A. > 43210 >
