Hi Yogesh Looks like Sqoop import from rdbms to hdfs is getting successful but is failing at hive create table. You are seeing data in hive ware house because you have specified that as your target dir in sqoop import (--target-dir /user/hive/warehouse/new). It is recommended to use a different target dir while doing sqoop import other than the hive warehouse dir.
Can you post in the full console log of sqoop with --verbose logging enabled. It can give some clues. With the second issue, You already have your data in '/user/hive/warehouse/letstry/' which is the location for the hive table 'letstry'. Why you still want to do a LOAD DATA again in there? If you are doing a SQOOP import of that, Again it is recommended to use a different target dir other than hive ware house dir. It'll help you avoid some confusions as well. ________________________________ From: yogesh dhari <[email protected]> To: hive request <[email protected]> Sent: Wednesday, July 4, 2012 1:40 PM Subject: RE: Hive upload Hi Bejoy, Thank you very much for your response, 1) A) When I run command show tables it doesn't show newhive table. B) Yes the the newhive directory is present into /user/hive/warehouse and also containing the values imported from RDBMS Please suggest and give me an example for the sqoop import command according to you for this case. 2) A) Here is the command describe formatted letstry; OK # col_name data_type comment rollno int None name string None numbr int None sno int None # Detailed Table Information Database: default Owner: mediaadmin CreateTime: Tue Jul 03 17:06:27 GMT+05:30 2012 LastAccessTime: UNKNOWN Protect Mode: None Retention: 0 Location: hdfs://localhost:9000/user/hive/warehouse/letstry Table Type: MANAGED_TABLE Table Parameters: transient_lastDdlTime 1341315550 # Storage Information SerDe Library: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat Compressed: No Num Buckets: -1 Bucket Columns: [] Sort Columns: [] Storage Desc Params: serialization.format 1 Time taken: 0.101 seconds B) hadoop dfs -ls /user/hive/warehouse/letstry/ Found 1 items -rw-r--r-- 1 mediaadmin supergroup 17 2012-07-02 12:05 /user/hive/warehouse/letstry/part-m-00000 hadoop dfs -cat /user/hive/warehouse/letstry/part-m-00000 1,John,123,abc,2 Here data is present but when I upload it to Hive it gets deleted from HDFS and in Hive value appers NULL instead of ( 1,John,123,abc,2). and I didn't understad your point regarding correct data format? ( this data was imported from Mysql table) And what kind of confugration neede in sqoop Please suggest and help Greetings Yogesh Kumar ________________________________ Subject: Re: Hive upload To: [email protected] From: [email protected] Date: Wed, 4 Jul 2012 05:58:41 +0000 Hi Yogesh The first issue (sqoop one). 1) Is the table newhive coming when you list tables using 'show table'? 2) Are you seeing a directory 'newhive' in your hive warte house dir(usually /usr/hive/warehouse)? If not sqoop is failing to create hive tables /load data into them. Only sqoop import to hdfs is getting successful the hive part is failing. If hive in stand alone mode works as desired you need to check the sqoop configurations. Regarding the second issue, can you check the storage location of NewTable and check whether there are files within. If so then do a 'cat' of those files and see whether it has the correct data format. You can get the location of your table from the following command describe formatted NewTable; Regards Bejoy KS Sent from handheld, please excuse typos. ________________________________ From: yogesh dhari <[email protected]> Date: Wed, 4 Jul 2012 11:09:02 +0530 To: hive request<[email protected]> ReplyTo: [email protected] Subject: Hive upload Hi all, I am trying to upload the tables from RDBMS to hive through sqoop, hive imports successfully. but i didn't find any table in hive that imported table gets uploaded into hdfs idr /user/hive/warehouse I want it to be present into hive, I used this command sqoop import --connect jdbc:mysql://localhost:3306/Demo --username sqoop1 --password SQOOP1 -table newone --hive-table newhive --create-hive-table --hive-import --target-dir /user/hive/warehouse/new And another thing is, If I upload any file or table from HDFS or from Local then its uploads but data doesn't show in Hive table, If I run command Select * from NewTable; it reflects Null Null Null Null although the real data is Yogesh 4 Bangalore 1234 Please Suggest and help Regards Yogesh Kumar
