[SQOOP-3188] Sqoop1 (import + --target-dir) with empty directory (/usr/lib/hive) fails with error (java.lang.NoClassDefFoundError: org/json/JSONObject)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Eric Lin
• Reporter: Markus Kemper
• Created: 10/May/17 21:05
• Updated: 12/Jul/18 08:32

Description

Sqoop1 (import + --target-dir) with empty directory (/usr/lib/hive) fails with error (java.lang.NoClassDefFoundError: org/json/JSONObject), see test case below.

Test Case

#################
# STEP 01 - Create Table and Data
#################

export MYCONN=jdbc:mysql://mysql.sqoop.com:3306/sqoop
export MYUSER=sqoop
export MYPSWD=sqoop

sqoop eval --connect $MYCONN --username $MYUSER --password $MYPSWD --query "drop table t1"
sqoop eval --connect $MYCONN --username $MYUSER --password $MYPSWD --query "create table t1 (c1 int, c2 date, c3 varchar(10))"
sqoop eval --connect $MYCONN --username $MYUSER --password $MYPSWD --query "insert into t1 values (1, current_date, 'some data')"
sqoop eval --connect $MYCONN --username $MYUSER --password $MYPSWD --query "select * from t1"

Output:
-----------------------------------------
| c1          | c2         | c3         | 
-----------------------------------------
| 1           | 2017-05-10 | some data  | 
-----------------------------------------

#################
# STEP 02 - Import Data into HDFS 
#################

sqoop import --connect $MYCONN --username $MYUSER --password $MYPSWD --table t1 --target-dir /user/root/t1 --delete-target-dir --num-mappers 1
hdfs dfs -cat /user/root/t1/part*

Output:
17/05/10 13:46:24 INFO mapreduce.ImportJobBase: Transferred 23 bytes in 22.65 seconds (1.0155 bytes/sec)
17/05/10 13:46:24 INFO mapreduce.ImportJobBase: Retrieved 1 records.
~~~~~
1,2017-05-10,some data

#################
# STEP 03 - Create Bogus Hive Directory and Attempt to Import into HDFS
#################

mkdir /usr/lib/hive
chmod 777 /usr/lib/hive
sqoop import --connect $MYCONN --username $MYUSER --password $MYPSWD --table t1 --target-dir /user/root/t1 --delete-target-dir --num-mappers 1

Output:
17/05/10 13:47:44 INFO mapreduce.ImportJobBase: Beginning import of t1
Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject
	at org.apache.sqoop.util.SqoopJsonUtil.getJsonStringforMap(SqoopJsonUtil.java:43)
	at org.apache.sqoop.SqoopOptions.writeProperties(SqoopOptions.java:776)
	at org.apache.sqoop.mapreduce.JobBase.putSqoopOptionsToConfiguration(JobBase.java:388)
	at org.apache.sqoop.mapreduce.JobBase.createJob(JobBase.java:374)
	at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:256)
	at org.apache.sqoop.manager.SqlManager.importTable(SqlManager.java:692)
	at org.apache.sqoop.manager.MySQLManager.importTable(MySQLManager.java:127)
	at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:513)
	at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:621)
	at org.apache.sqoop.Sqoop.run(Sqoop.java:147)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)
	at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)
	at org.apache.sqoop.Sqoop.runTool(Sqoop.java:243)
	at org.apache.sqoop.Sqoop.main(Sqoop.java:252)
Caused by: java.lang.ClassNotFoundException: org.json.JSONObject
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	... 15 more

#################
# STEP 04 - Remove Bogus Hive Directory and Attempt to Import into HDFS 
#################

rm -rf /usr/lib/hive
sqoop import --connect $MYCONN --username $MYUSER --password $MYPSWD --table t1 --target-dir /user/root/t1 --delete-target-dir --num-mappers 1
hdfs dfs -cat /user/root/t1/part*

Output:
17/05/10 13:52:30 INFO mapreduce.ImportJobBase: Transferred 23 bytes in 22.6361 seconds (1.0161 bytes/sec)
17/05/10 13:52:30 INFO mapreduce.ImportJobBase: Retrieved 1 records.
~~~~~
1,2017-05-10,some data