I went ahead and created a JIRA for this and back ported the improvement into branch-1.0. This wasn't a regression per-se because the behavior existed in all previous versions, but it's annoying behavior so best to fix it.
https://issues.apache.org/jira/browse/SPARK-1984 - Patrick On Sun, Jun 1, 2014 at 11:13 AM, Patrick Wendell <pwend...@gmail.com> wrote: > This is a false error message actually - the Maven build no longer > requires SCALA_HOME but the message/check was still there. This was > fixed recently in master: > > https://github.com/apache/spark/commit/d8c005d5371f81a2a06c5d27c7021e1ae43d7193 > > I can back port that fix into branch-1.0 so it will be in 1.0.1 as > well. For other people running into this, you can export SCALA_HOME to > any value and it will work. > > - Patrick > > On Sat, May 31, 2014 at 8:34 PM, Colin McCabe <cmcc...@alumni.cmu.edu> wrote: >> Spark currently supports two build systems, sbt and maven. sbt will >> download the correct version of scala, but with Maven you need to supply it >> yourself and set SCALA_HOME. >> >> It sounds like the instructions need to be updated-- perhaps create a JIRA? >> >> best, >> Colin >> >> >> On Sat, May 31, 2014 at 7:06 PM, Soren Macbeth <so...@yieldbot.com> wrote: >> >>> Hello, >>> >>> Following the instructions for building spark 1.0.0, I encountered the >>> following error: >>> >>> [ERROR] Failed to execute goal >>> org.apache.maven.plugins:maven-antrun-plugin:1.7:run (default) on project >>> spark-core_2.10: An Ant BuildException has occured: Please set the >>> SCALA_HOME (or SCALA_LIBRARY_PATH if scala is on the path) environment >>> variables and retry. >>> [ERROR] around Ant part ...<fail message="Please set the SCALA_HOME (or >>> SCALA_LIBRARY_PATH if scala is on the path) environment variables and >>> retry.">... @ 6:126 in >>> /Users/soren/src/spark-1.0.0/core/target/antrun/build-main.xml >>> >>> No where in the documentation does it mention that having scala installed >>> and either of these env vars set nor what version should be installed. >>> Setting these env vars wasn't required for 0.9.1 with sbt. >>> >>> I was able to get past it by downloading the scala 2.10.4 binary package to >>> a temp dir and setting SCALA_HOME to that dir. >>> >>> Ideally, it would be nice to not have to require people to have a >>> standalone scala installation but at a minimum this requirement should be >>> documented in the build instructions no? >>> >>> -Soren >>>
