I am able to run standalone apps. I think you are making one mistake that throws you off from there onwards. You don't need to put your app under SPARK_HOME. I would create it in its own folder somewhere, it follows the rules of any standalone scala program (including the layout). In the giude, $SPARK_HOME is only relevant to find the Readme file which they are parsing/word-counting. But otherwise the compile time dependencies on spark would be resolved via the sbt file (or the pom file if you look at the Java example).
So for example I put my app under C:\Source\spark-code and the jar gets created in C:\Source\spark-code\target\scala-2.9.3 (or 2.10 if you're running with scala 2.10 as the example shows). But for that part of the guide, it's not any different than building a scala app. On Mon, Mar 24, 2014 at 3:44 PM, Diana Carroll <dcarr...@cloudera.com> wrote: > Has anyone successfully followed the instructions on the Quick Start page of > the Spark home page to run a "standalone" Scala application? I can't, and I > figure I must be missing something obvious! > > I'm trying to follow the instructions here as close to "word for word" as > possible: > http://spark.apache.org/docs/latest/quick-start.html#a-standalone-app-in-scala > > 1. The instructions don't say what directory to create my test application > in, but later I'm instructed to run "sbt/sbt" so I conclude that my working > directory must be $SPARK_HOME. (Temporarily ignoring that it is a little > weird to be working directly in the Spark distro.) > > 2. Create $SPARK_HOME/mysparktest/src/main/scala/SimpleApp.scala. > Copy&paste in the code from the instructions exactly, replacing > YOUR_SPARK_HOME with my spark home path. > > 3. Create $SPARK_HOME/mysparktest/simple.sbt. Copy&paste in the sbt file > from the instructions > > 4. From the $SPARK_HOME I run "sbt/sbt package". It runs through the > ENTIRE Spark project! This takes several minutes, and at the end, it says > "Done packaging". unfortunately, there's nothing in the > $SPARK_HOME/mysparktest/ folder other than what I already had there. > > (Just for fun, I also did what I thought was more logical, which is set my > working directory to $SPARK_HOME/mysparktest, and but $SPARK_HOME/sbt/sbt > package, but that was even less successful: I got an error: > awk: cmd. line:1: fatal: cannot open file `./project/build.properties' for > reading (No such file or directory) > Attempting to fetch sbt > /usr/lib/spark/sbt/sbt: line 33: sbt/sbt-launch-.jar: No such file or > directory > /usr/lib/spark/sbt/sbt: line 33: sbt/sbt-launch-.jar: No such file or > directory > Our attempt to download sbt locally to sbt/sbt-launch-.jar failed. Please > install sbt manually from http://www.scala-sbt.org/ > > > So, help? I'm sure these instructions work because people are following > them every day, but I can't tell what they are supposed to do. > > Thanks! > Diana >
