This is what Ambari says:
WARNING: Use "yarn jar" to launch YARN applications.
16/06/02 21:12:43 INFO pig.ExecTypeProvider: Trying ExecType : LOCAL
16/06/02 21:12:43 INFO pig.ExecTypeProvider: Trying ExecType : MAPREDUCE
16/06/02 21:12:43 INFO pig.ExecTypeProvider: Trying ExecType : TEZ_LOCAL
16/06/02 21:12:43 INFO pig.ExecTypeProvider: Trying ExecType : TEZ
16/06/02 21:12:43 INFO pig.ExecTypeProvider: Picked TEZ as the ExecType
2016-06-02 21:12:43,603 [main] INFO org.apache.pig.Main - Apache Pig version 0.15.0.2.4.0.0-169 (rexported) compiled Feb 10 2016, 07:50:04
2016-06-02 21:12:43,603 [main] INFO org.apache.pig.Main - Logging error messages to: /hadoop/yarn/local/usercache/admin/appcache/application_1464899556124_0006/container_e16_1464899556124_0006_01_000002/pig_1464901963602.log
2016-06-02 21:12:44,356 [main] INFO org.apache.pig.impl.util.Utils - Default bootup file /home/yarn/.pigbootup not found
2016-06-02 21:12:44,477 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://sandbox.hortonworks.com:8020
2016-06-02 21:12:45,021 [main] INFO org.apache.pig.PigServer - Pig Script ID for the session: PIG-script.pig-b1da2d85-2845-4a3f-b59b-b2e367f74c1c
2016-06-02 21:12:45,420 [main] INFO org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl - Timeline service address: http://sandbox.hortonworks.com:8188/ws/v1/timeline/
2016-06-02 21:12:45,646 [main] INFO org.apache.pig.backend.hadoop.ATSService - Created ATS Hook
2016-06-02 21:12:46,138 [main] ERROR org.apache.pig.PigServer - exception during parsing: Error during parsing. Pig script failed to parse:
<file script.pig, line 4, column 4> pig script failed to validate: java.lang.RuntimeException: could not instantiate 'org.apache.hive.hcatalog.pig.HCatLoader' with arguments 'null'
Failed to parse: Pig script failed to parse:
<file script.pig, line 4, column 4> pig script failed to validate: java.lang.RuntimeException: could not instantiate 'org.apache.hive.hcatalog.pig.HCatLoader' with arguments 'null'
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:199)
at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1776)
at org.apache.pig.PigServer$Graph.access$000(PigServer.java:1484)
at org.apache.pig.PigServer.parseAndBuild(PigServer.java:428)
at org.apache.pig.PigServer.executeBatch(PigServer.java:453)
at org.apache.pig.PigServer.executeBatch(PigServer.java:439)
at org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:171)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:234)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:81)
at org.apache.pig.Main.run(Main.java:502)
at org.apache.pig.Main.main(Main.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by:
<file script.pig, line 4, column 4> pig script failed to validate: java.lang.RuntimeException: could not instantiate 'org.apache.hive.hcatalog.pig.HCatLoader' with arguments 'null'
at org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:897)
at org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3568)
at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1625)
at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1102)
at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:560)
at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421)
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:191)
... 17 more
Caused by: java.lang.RuntimeException: could not instantiate 'org.apache.hive.hcatalog.pig.HCatLoader' with arguments 'null'
at org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:772)
at org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:885)
... 23 more
Caused by: java.lang.NoClassDefFoundError: org/apache/hadoop/hive/metastore/api/NoSuchObjectException
at org.apache.hive.hcatalog.pig.HCatLoader.<init>(HCatLoader.java:71)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:383)
at org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:742)
... 24 more
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hive.metastore.api.NoSuchObjectException
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 31 more
2016-06-02 21:12:46,148 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1200: Pig script failed to parse:
<file script.pig, line 4, column 4> pig script failed to validate: java.lang.RuntimeException: could not instantiate 'org.apache.hive.hcatalog.pig.HCatLoader' with arguments 'null'
Details at logfile: /hadoop/yarn/local/usercache/admin/appcache/application_1464899556124_0006/container_e16_1464899556124_0006_01_000002/pig_1464901963602.log
2016-06-02 21:12:46,167 [main] INFO org.apache.pig.Main - Pig script completed in 2 seconds and 722 milliseconds (2722 ms)
