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From "liyunzhang_intel (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-5246) Modify bin/pig about SPARK_HOME, SPARK_ASSEMBLY_JAR after upgrading spark to 2
Date Thu, 01 Jun 2017 06:20:04 GMT

     [ https://issues.apache.org/jira/browse/PIG-5246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

liyunzhang_intel updated PIG-5246:
----------------------------------
    Attachment: PIG-5246.patch

[~nkollar], [~szita]: help review 
in spark2, spark-assembly*.jar does not exist, so we need append all jars under $SPARK_HOME/jars/
to the pig classpath.
{code}
+    if [ "$sparkversion" == "21" ]; then
+          if [ -n "$SPARK_HOME" ]; then
+             echo "Using Spark Home: " ${SPARK_HOME}
+              for f in $SPARK_HOME/jars/*.jar; do
+                   CLASSPATH=${CLASSPATH}:$f
+              done
+          fi
+     fi
{code}

the way to use 

1. build pig with spark21
{noformat}
   ant clean -v  -Dsparkversion=21   -Dhadoopversion=2 jar
{noformat}
2. run pig with spark21
{noformat}
  /pig -x $mode -sparkversion 21 -log4jconf $PIG_HOME/conf/log4j.properties -logfile $PIG_HOME/logs/pig.log
 $PIG_HOME/bin/testJoin.pig
{noformat}
  

> Modify bin/pig about SPARK_HOME, SPARK_ASSEMBLY_JAR after upgrading spark to 2
> ------------------------------------------------------------------------------
>
>                 Key: PIG-5246
>                 URL: https://issues.apache.org/jira/browse/PIG-5246
>             Project: Pig
>          Issue Type: Bug
>            Reporter: liyunzhang_intel
>            Assignee: liyunzhang_intel
>         Attachments: PIG-5246.patch
>
>
> in bin/pig.
> we copy assembly jar to pig's classpath in spark1.6.
> {code}
> # For spark mode:
> # Please specify SPARK_HOME first so that we can locate $SPARK_HOME/lib/spark-assembly*.jar,
> # we will add spark-assembly*.jar to the classpath.
> if [ "$isSparkMode"  == "true" ]; then
>     if [ -z "$SPARK_HOME" ]; then
>        echo "Error: SPARK_HOME is not set!"
>        exit 1
>     fi
>     # Please specify SPARK_JAR which is the hdfs path of spark-assembly*.jar to allow
YARN to cache spark-assembly*.jar on nodes so that it doesn't need to be distributed each
time an application runs.
>     if [ -z "$SPARK_JAR" ]; then
>        echo "Error: SPARK_JAR is not set, SPARK_JAR stands for the hdfs location of spark-assembly*.jar.
This allows YARN to cache spark-assembly*.jar on nodes so that it doesn't need to be distributed
each time an application runs."
>        exit 1
>     fi
>     if [ -n "$SPARK_HOME" ]; then
>         echo "Using Spark Home: " ${SPARK_HOME}
>         SPARK_ASSEMBLY_JAR=`ls ${SPARK_HOME}/lib/spark-assembly*`
>         CLASSPATH=${CLASSPATH}:$SPARK_ASSEMBLY_JAR
>     fi
> fi
> {code}
> after upgrade to spark2.0, we may modify it



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