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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2014/04/17 09:48:15 UTC
[jira] [Updated] (SPARK-1520) Inclusion of breeze corrupts assembly
when compiled with JDK7 and run on JDK6
[ https://issues.apache.org/jira/browse/SPARK-1520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Wendell updated SPARK-1520:
-----------------------------------
Description:
This is a real doozie - when compiling a Spark assembly with JDK7, the produced jar does not work well with JRE6. I confirmed the byte code being produced is JDK 6 compatible (major version 50). What happens is that, silently, the JRE will not load any class files from the assembled jar.
{code}
$> sbt/sbt assembly/assembly
$> /usr/lib/jvm/java-1.7.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
usage: ./bin/spark-class org.apache.spark.ui.UIWorkloadGenerator [master] [FIFO|FAIR]
$> /usr/lib/jvm/java-1.6.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/ui/UIWorkloadGenerator
Caused by: java.lang.ClassNotFoundException: org.apache.spark.ui.UIWorkloadGenerator
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
Could not find the main class: org.apache.spark.ui.UIWorkloadGenerator. Program will exit.
{code}
I also noticed that if the jar is unzipped, and the classpath set to the currently directory, it "just works". Finally, if the assembly jar is compiled with JDK6, it also works. The error is seen with any class, not just the UIWorkloadGenerator. Also, this error doesn't exist in branch 0.9, only in master.
I ran a git bisection and this appeared after the MLLib sparse vector patch was merged:
https://github.com/apache/spark/commit/80c29689ae3b589254a571da3ddb5f9c866ae534
SPARK-1212
I narrowed this down specifically to the inclusion of the breeze library. Just adding breeze to an older (unaffected) build fixed the issue.
was:
This is a real doozie - when compiling a Spark assembly with JDK7, the produced jar does not work well with JRE6. I confirmed the byte code being produced is JDK 6 compatible (major version 50). What happens is that, silently, the JRE will not load any class files from the assembled jar.
{code}
$> sbt/sbt assembly/assembly
$> /usr/lib/jvm/java-1.7.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
usage: ./bin/spark-class org.apache.spark.ui.UIWorkloadGenerator [master] [FIFO|FAIR]
$> /usr/lib/jvm/java-1.6.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/ui/UIWorkloadGenerator
Caused by: java.lang.ClassNotFoundException: org.apache.spark.ui.UIWorkloadGenerator
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
Could not find the main class: org.apache.spark.ui.UIWorkloadGenerator. Program will exit.
{code}
I also noticed that if the jar is unzipped, and the classpath set to the currently directory, it "just works". Finally, if the assembly jar is compiled with JDK6, it also works. The error is seen with any class, not just the UIWorkloadGenerator. Also, this error doesn't exist in branch 0.9, only in master.
I ran a git bisection and this appeared after the MLLib sparse vector patch was merged:
https://github.com/apache/spark/commit/80c29689ae3b589254a571da3ddb5f9c866ae534
SPARK-1212
> Inclusion of breeze corrupts assembly when compiled with JDK7 and run on JDK6
> -----------------------------------------------------------------------------
>
> Key: SPARK-1520
> URL: https://issues.apache.org/jira/browse/SPARK-1520
> Project: Spark
> Issue Type: Bug
> Components: MLlib, Spark Core
> Reporter: Patrick Wendell
> Priority: Blocker
> Fix For: 1.0.0
>
>
> This is a real doozie - when compiling a Spark assembly with JDK7, the produced jar does not work well with JRE6. I confirmed the byte code being produced is JDK 6 compatible (major version 50). What happens is that, silently, the JRE will not load any class files from the assembled jar.
> {code}
> $> sbt/sbt assembly/assembly
> $> /usr/lib/jvm/java-1.7.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
> usage: ./bin/spark-class org.apache.spark.ui.UIWorkloadGenerator [master] [FIFO|FAIR]
> $> /usr/lib/jvm/java-1.6.0-openjdk-amd64/bin/java -cp /home/patrick/Documents/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-SNAPSHOT-hadoop1.0.4.jar org.apache.spark.ui.UIWorkloadGenerator
> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/ui/UIWorkloadGenerator
> Caused by: java.lang.ClassNotFoundException: org.apache.spark.ui.UIWorkloadGenerator
> at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
> Could not find the main class: org.apache.spark.ui.UIWorkloadGenerator. Program will exit.
> {code}
> I also noticed that if the jar is unzipped, and the classpath set to the currently directory, it "just works". Finally, if the assembly jar is compiled with JDK6, it also works. The error is seen with any class, not just the UIWorkloadGenerator. Also, this error doesn't exist in branch 0.9, only in master.
> I ran a git bisection and this appeared after the MLLib sparse vector patch was merged:
> https://github.com/apache/spark/commit/80c29689ae3b589254a571da3ddb5f9c866ae534
> SPARK-1212
> I narrowed this down specifically to the inclusion of the breeze library. Just adding breeze to an older (unaffected) build fixed the issue.
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