Pig Error

Question

Hi,     I've been trying trying out your Big data solution & its cool. But ran into a problem when running a pig job . Can you help me out?emp = load 'data.txt' using PigStorage(',') as (name:chararray,id:int,city:chararray);a = foreach emp generate $0;dump a;Error:2014-10-25 13:53:20,251 [main] INFO  org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!
2014-10-25 13:53:20,251 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator for alias a. Backend error : org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException: Application with id 'application_1414217179201_0009' doesn't exist in RM.
	at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:251)
	at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:120)
	at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:241)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1958)Attachment: Screen_Shot_20141025_at_4.03.07_pm_cc8c9ed6.zip

Praveena P · Answer

Hi,
I've been trying trying out your Big data solution & its cool. But ran into a problem when running a pig job . Can you help me out?

emp = load 'data.txt' using PigStorage(',') as (name:chararray,id:int,city:chararray);
a = foreach emp generate $0;
dump a;

Error:
2014-10-25 13:53:20,251 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!

2014-10-25 13:53:20,251 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator for alias a. Backend error : org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException: Application with id 'application_1414217179201_0009' doesn't exist in RM.

at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:251)

at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:120)

at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:241)

at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)

at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.Subject.doAs(Subject.java:415)

at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)

at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1958)

Attachment: Screen_Shot_20141025_at_4.03.07_pm_cc8c9ed6.zip

Hi Venu,

Thanks for your interest in Syncfusion products.

Query:

Problem in running pig job.

The pig job submitted has been failed due to the below cause:

“Input path does not exist”.

Please refer the attached screenshot highlighted with the failed message.

The input path specified in provided pig script is as follows.

emp = load 'data.txt' using PigStorage(',') as (name:chararray,id:int,city:chararray);

which contains only a file name to load. This implies the default path as ‘/user/username/inputfile’. In your case ‘/user/Venu/data.txt’. So place the input file in the corresponding location and execute the script.

If the input file is in hdfs root location, then the pig script should be

emp = load ' /data.txt' using PigStorage(',') as (name:chararray,id:int,city:chararray)

Please let us know if you have any queries.

Regards,

Praveena.

Praveena P · Answer

Hi Venu,Please find the screenshot attachment which is missed in last update.Regards,Praveena.Attachment: screenshot_7424948a.zip

Venu Bukka · Answer

Thanks. I got the path wrong

Praveena P · Answer

Hi Venu,We are glad that your problem has resolved. Please let us know if you have any queries.Regards,Praveena.