[HIVE-13539] HiveHFileOutputFormat searching the wrong directory for HFiles

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 2.1.1, 2.2.0
• Component/s: HBase Handler
• Labels: pull-request-available

Environment

Built into CDH 5.4.7

• Assignee: Chaoyu Tang
• Reporter: Tim Robertson
• Created: 18/Apr/16 19:16
• Updated: 24/Jun/20 00:27
• Resolved: 18/Nov/16 21:07

Description

When creating HFiles for a bulkload in HBase I believe it is looking in the wrong directory to find the HFiles, resulting in the following exception:

Error: java.lang.RuntimeException: Hive Runtime Error while closing operators: java.io.IOException: Multiple family directories found in hdfs://c1n1.gbif.org:8020/user/hive/warehouse/tim.db/coords_hbase/_temporary/2/_temporary
	at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.close(ExecReducer.java:295)
	at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:453)
	at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:392)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.io.IOException: Multiple family directories found in hdfs://c1n1.gbif.org:8020/user/hive/warehouse/tim.db/coords_hbase/_temporary/2/_temporary
	at org.apache.hadoop.hive.ql.exec.FileSinkOperator$FSPaths.closeWriters(FileSinkOperator.java:188)
	at org.apache.hadoop.hive.ql.exec.FileSinkOperator.closeOp(FileSinkOperator.java:958)
	at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:598)
	at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)
	at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.close(ExecReducer.java:287)
	... 7 more
Caused by: java.io.IOException: Multiple family directories found in hdfs://c1n1.gbif.org:8020/user/hive/warehouse/tim.db/coords_hbase/_temporary/2/_temporary
	at org.apache.hadoop.hive.hbase.HiveHFileOutputFormat$1.close(HiveHFileOutputFormat.java:158)
	at org.apache.hadoop.hive.ql.exec.FileSinkOperator$FSPaths.closeWriters(FileSinkOperator.java:185)
	... 11 more

The issue is that is looks for the HFiles in hdfs://c1n1.gbif.org:8020/user/hive/warehouse/tim.db/coords_hbase/_temporary/2/_temporary when I believe it should be looking in the task attempt subfolder, such as hdfs://c1n1.gbif.org:8020/user/hive/warehouse/tim.db/coords_hbase/_temporary/2/_temporary/attempt_1461004169450_0002_r_000000_1000.

This can be reproduced in any HFile creation such as:

CREATE TABLE coords_hbase(id INT, x DOUBLE, y DOUBLE)
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES (
  'hbase.columns.mapping' = ':key,o:x,o:y',
  'hbase.table.default.storage.type' = 'binary');

SET hfile.family.path=/tmp/coords_hfiles/o; 
SET hive.hbase.generatehfiles=true;

INSERT OVERWRITE TABLE coords_hbase 
SELECT id, decimalLongitude, decimalLatitude
FROM source
CLUSTER BY id; 

Any advice greatly appreciated

Issue Links

• relates to: HIVE-15341 Get work path instead of attempted task path in HiveHFileOutputFormat
• links to: GitHub Pull Request #74