[jira] [Updated] (HIVE-7049) Unable to deserialize AVRO data when file schema and record schema are different and nullable

[Mohammad Kamrul Islam (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mohammad Kamrul Islam updated HIVE-7049:


Attachment: HIVE-7049.1.patch

patch uploaded

 Unable to deserialize AVRO data when file schema and record schema are 
 different and nullable
 -

 Key: HIVE-7049
 URL: https://issues.apache.org/jira/browse/HIVE-7049
 Project: Hive
  Issue Type: Bug
Reporter: Mohammad Kamrul Islam
Assignee: Mohammad Kamrul Islam
 Attachments: HIVE-7049.1.patch


 It mainly happens when 
 1 )file schema and record schema are not same
 2 ) Record schema is nullable  but file schema is not.
 The potential code location is at class AvroDeserialize
  
 {noformat}
  if(AvroSerdeUtils.isNullableType(recordSchema)) {
   return deserializeNullableUnion(datum, fileSchema, recordSchema, 
 columnType);
 }
 {noformat}
 In the above code snippet, recordSchema is verified if it is nullable. But 
 the file schema is not checked.
 I tested with these values:
 {noformat}
 recordSchema= [null,string]
 fielSchema= string
 {noformat}
 And i got the following exception line numbers might not be the same due to 
 mu debugged code version.
 {noformat}
 org.apache.avro.AvroRuntimeException: Not a union: string 
 at org.apache.avro.Schema.getTypes(Schema.java:272)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserializeNullableUnion(AvroDeserializer.java:275)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.worker(AvroDeserializer.java:205)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.workerBase(AvroDeserializer.java:188)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserialize(AvroDeserializer.java:174)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.verifyNullableType(TestAvroDeserializer.java:487)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.canDeserializeNullableTypes(TestAvroDeserializer.java:407)
 {noformat}



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[jira] [Updated] (HIVE-7049) Unable to deserialize AVRO data when file schema and record schema are different and nullable

[Mohammad Kamrul Islam (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mohammad Kamrul Islam updated HIVE-7049:


Status: Patch Available  (was: Open)

 Unable to deserialize AVRO data when file schema and record schema are 
 different and nullable
 -

 Key: HIVE-7049
 URL: https://issues.apache.org/jira/browse/HIVE-7049
 Project: Hive
  Issue Type: Bug
Reporter: Mohammad Kamrul Islam
Assignee: Mohammad Kamrul Islam
 Attachments: HIVE-7049.1.patch


 It mainly happens when 
 1 )file schema and record schema are not same
 2 ) Record schema is nullable  but file schema is not.
 The potential code location is at class AvroDeserialize
  
 {noformat}
  if(AvroSerdeUtils.isNullableType(recordSchema)) {
   return deserializeNullableUnion(datum, fileSchema, recordSchema, 
 columnType);
 }
 {noformat}
 In the above code snippet, recordSchema is verified if it is nullable. But 
 the file schema is not checked.
 I tested with these values:
 {noformat}
 recordSchema= [null,string]
 fielSchema= string
 {noformat}
 And i got the following exception line numbers might not be the same due to 
 mu debugged code version.
 {noformat}
 org.apache.avro.AvroRuntimeException: Not a union: string 
 at org.apache.avro.Schema.getTypes(Schema.java:272)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserializeNullableUnion(AvroDeserializer.java:275)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.worker(AvroDeserializer.java:205)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.workerBase(AvroDeserializer.java:188)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserialize(AvroDeserializer.java:174)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.verifyNullableType(TestAvroDeserializer.java:487)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.canDeserializeNullableTypes(TestAvroDeserializer.java:407)
 {noformat}



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