[jira] [Updated] (SPARK-984) SPARK_TOOLS_JAR not set if multiple tools jars exists

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-984:
----------------------------
    Assignee: Marcelo Vanzin

> SPARK_TOOLS_JAR not set if multiple tools jars exists
> -----------------------------------------------------
>
>                 Key: SPARK-984
>                 URL: https://issues.apache.org/jira/browse/SPARK-984
>             Project: Spark
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 0.8.1, 0.9.0
>            Reporter: Aaron Davidson
>            Assignee: Marcelo Vanzin
>            Priority: Minor
>             Fix For: 1.4.0
>
>
> If you have multiple tools assemblies (e.g., if you assembled on 0.8.1 and 0.9.0 before, for instance), then this error is thrown in spark-class:
> {noformat}./spark-class: line 115: [: /home/aaron/spark/tools/target/scala-2.9.3/spark-tools-assembly-0.8.1-incubating-SNAPSHOT.jar: binary operator expected{noformat}
> This is because of a flaw in the bash script:
> {noformat}if [ -e "$TOOLS_DIR"/target/scala-$SCALA_VERSION/*assembly*[0-9Tg].jar ]; then{noformat}
> which does not parse correctly if the path resolves to multiple files.
> The error is non-fatal, but a nuisance and presumably breaks whatever SPARK_TOOLS_JAR is used for.
> Currently, we error if multiple Spark assemblies are found, so we could do something similar for tools assemblies. The only issue is that means that the user will always have to go through both errors (clean the assembly/ jars then tools/ jar) when it appears that the tools/ jar is not actually important for normal operation. The second possibility is to infer the correct tools jar using the single available assembly jar, but this is slightly complicated by the code path if $FWDIR/RELEASE exists.
> Since I'm not 100% on what SPARK_TOOLS_JAR is even for, I'm assigning this to Josh who wrote the code initially.



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