[PIG-3413] JsonLoader fails the pig job in case of malformed json input

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.11.1
• Fix Version/s: 0.15.0
• Labels: json loader pig
• Hadoop Flags: Reviewed
• Assignee: Eyal Allweil
• Reporter: Demeter Sztanko
• Created: 08/Aug/13 16:48
• Updated: 07/Jun/15 03:48
• Resolved: 10/Nov/14 07:22

Description

The following pig script:
b = load 'bad.input' using JsonLoader('a0: chararray');
dump b;

runs well for the input:

{"a": "good"}

and fails the whole job for the following input (mallformed json)

{"a", bad}

I was expecting that it will just skip the line and go further.

Getting this error:
org.codehaus.jackson.JsonParseException: Unexpected character ('g' (code 103)): was expecting comma to separate OBJECT entries
at [Source: java.io.ByteArrayInputStream@4610c772; line: 1, column: 4100]
at org.codehaus.jackson.JsonParser._constructError(JsonParser.java:1433)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportError(JsonParserMinimalBase.java:521)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportUnexpectedChar(JsonParserMinimalBase.java:442)
at org.codehaus.jackson.impl.Utf8StreamParser.nextToken(Utf8StreamParser.java:482)
at org.apache.pig.builtin.JsonLoader.readField(JsonLoader.java:173)
at org.apache.pig.builtin.JsonLoader.getNext(JsonLoader.java:157)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:211)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:540)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:771)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:375)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
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:1132)
at org.apache.hadoop.mapred.Child.main(Child.java:249)