[HIVE-7502] Writes to parquet tables via HCatalog fail with "java.lang.RuntimeException: Should never be used".

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.13.1
• Component/s: HCatalog
• Assignee: Unassigned
• Reporter: Craig Condit
• Created: 24/Jul/14 17:20
• Updated: 27/Mar/20 09:09

Description

Attempting to store data into a Parquet table via HCatalog (using Pig) fails. Based on the code, it appears that org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat.getRecordWriter() is unimplemented.

To duplicate:

Hive:

create table parquet_input_test stored as parquet as with x as (select test as value) select * from x;
create table parquet_output_test (value int) stored as parquet;

Pig:

A = LOAD 'parquet_input_test' USING org.apache.hive.hcatalog.pig.HCatLoader();
STORE A INTO 'parquet_output_test' USING org.apache.hive.hcatalog.pig.HCatStorer();

Result:

java.lang.RuntimeException: Should never be used
	at org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat.getRecordWriter(MapredParquetOutputFormat.java:76)
	at org.apache.hive.hcatalog.mapreduce.FileOutputFormatContainer.getRecordWriter(FileOutputFormatContainer.java:103)
	at org.apache.hive.hcatalog.mapreduce.HCatOutputFormat.getRecordWriter(HCatOutputFormat.java:260)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.getRecordWriter(PigOutputFormat.java:84)
	at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:623)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:743)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:339)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)
	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:1491)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)

Issue Links

• duplicates: HIVE-4329 HCatalog should use getHiveRecordWriter rather than getRecordWriter
• is related to: HIVE-8838 Support Parquet through HCatalog
• relates to: HIVE-22249 Support Parquet through HCatalog