[jira] [Updated] (PIG-4920) Fail to use Javascript UDF in spark yarn client mode

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

     [ https://issues.apache.org/jira/browse/PIG-4920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

liyunzhang_intel updated PIG-4920:
----------------------------------
    Attachment: PIG-4920_4.patch

[~mohitsabharwal]:  Changes in PIG-4920_4.patch
As we can not serialize and deserialize UDFContext#udfConfs and UDFContext#clientSysProps in PigContext anymore, create SparkEngineConf and serialize and deserialize these two variables in it.

> Fail to use Javascript UDF in spark yarn client mode
> ----------------------------------------------------
>
>                 Key: PIG-4920
>                 URL: https://issues.apache.org/jira/browse/PIG-4920
>             Project: Pig
>          Issue Type: Sub-task
>          Components: spark
>            Reporter: liyunzhang_intel
>             Fix For: spark-branch
>
>         Attachments: PIG-4920.patch, PIG-4920_2.patch, PIG-4920_3.patch, PIG-4920_4.patch
>
>
> udf.pig 
> {code}
> register '/home/zly/prj/oss/merge.pig/pig/bin/udf.js' using javascript as myfuncs;
> A = load './passwd' as (a0:chararray, a1:chararray);
> B = foreach A generate myfuncs.helloworld();
> store B into './udf.out';
> {code}
> udf.js
> {code}
> helloworld.outputSchema = "word:chararray";
> function helloworld() {
>     return 'Hello, World';
> }
>     
> complex.outputSchema = "word:chararray";
> function complex(word){
>     return {word:word};
> }
> {code}
> run udf.pig in spark local mode(export SPARK_MASTER="local"), it successfully.
> run udf.pig in spark yarn client mode(export SPARK_MASTER="yarn-client"), it fails and error message like following:
> {noformat}
> Caused by: java.lang.reflect.InvocationTargetException
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>         at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
>         at org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:744)
>         ... 84 more
> Caused by: java.lang.ExceptionInInitializerError
>         at org.apache.pig.scripting.js.JsScriptEngine.getInstance(JsScriptEngine.java:87)
>         at org.apache.pig.scripting.js.JsFunction.<init>(JsFunction.java:173)
>         ... 89 more
> Caused by: java.lang.IllegalStateException: could not get script path from UDFContext
>         at org.apache.pig.scripting.js.JsScriptEngine$Holder.<clinit>(JsScriptEngine.java:69)
>         ... 91 more
> {noformat}



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