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https://issues.apache.org/jira/browse/PIG-4920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454794#comment-15454794
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liyunzhang_intel edited comment on PIG-4920 at 9/1/16 8:51 AM:
---------------------------------------------------------------
[~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.
[~rohini]: I will not serialize and deserialize UDFContext#udfConfs and so
on(these thread-local variables in PigContext any more, will serialize and
deserialize them in
org.apache.pig.backend.hadoop.executionengine.spark.SparkEngineConf) , It will
not change the PigContext code, do you think it is ok?
was (Author: kellyzly):
[~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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