Okay..I means the job finished without errors,and I check data in MySQL database,all of values for columns "int","double" and "string" are null [image: 内嵌图片 1]
2017-12-27 11:42 GMT+08:00 Ajana Chandiruthil Sathian <[email protected]>: > I am glad that it worked. Let me look into sourcecode. If you found out > before me, please let me know. > > On Tue, Dec 26, 2017 at 9:33 PM, feng wang <[email protected]> > wrote: > >> I`m just testing the sqoop tools,actually I found when the column name >> start with keys in MySQL like PRIMARY_people_name and the export job >> will going to failed too with same error logs... >> By the way int and double are keywords for MySQL please see >> https://dev.mysql.com/doc/refman/5.7/en/keywords.html and the* "`"* is >> not single quote but the *key on 'Tab' in keyboard* >> >> Thanks for your remind and I run >> >>> bin/sqoop export --connect jdbc:mysql://192.168.100.23:3303/IA --username >>> "root" --password "password" --table "ALL_TYPES" --columns >>> "bankcard,sex,HTTPStateCode,boolean,ip,array,map,idcard,phon >>> e,email,post,date,uniform_date,`int`,`double`,`string`" --export-dir >>> "/tmp/ALL_TYPES2.csv" -m 1 >> >> >> It really works... >> >> But this is just a temporary solution, so I want edit the source code >> automatic add "`" for column names,this is just for MySQL，as for >> oracle，postgreSQL shoud add others special char. So could you mind tell me >> where the functions is in the source code? As I mentioned before it >> seems workless.. >> >>> *org.apache.sqoop.manager.SqlManager.**getColumnNamesForRawQuery* as >>> shows: >>> code at 152: columns.add(colName); --> columns.add("`"+colName+"`"); >> >> >> >> >> >> 2017-12-27 10:08 GMT+08:00 Ajana Chandiruthil Sathian <[email protected]> >> : >> >>> Hi, >>> >>> I am assuming that the reason you put single quotes around the last >>> three columns : int, double, string is not to consider its original >>> meaning( since they are data types). Please correct me if I misunderstood. >>> If that is the case, you should provide that for string too. In the >>> sqoop command you did not provide the single quotes around string column. >>> Can I ask you one question? Why do you want to name the columns as >>> datatypes? Does it even possible? Interesting. The whole time I thought >>> those are reserved words and could not use as an identifier. Does not feel >>> like a good practice though! >>> >>> On Tue, Dec 26, 2017 at 7:51 PM, feng wang <[email protected]> >>> wrote: >>> >>>> Thanks for your reply. I have already used --columns argument like this: >>>>> >>>>> bin/sqoop export --connect jdbc:mysql://192.168.100.23:3303/IA >>>>> --username "root" --password "password" --table "ALL_TYPES" --columns >>>>> "bankcard,sex,HTTPStateCode,boolean,ip,array,map,idcard,phon >>>>> e,email,post,date,uniform_date,`int`,`double`,string" --export-dir >>>>> "/tmp/ALL_TYPES.csv" -m 1 >>>> >>>> >>>> I use escape char* "`" * with column name*s "int" and "double"* but it >>>> return following information: >>>> >>>>> 17/12/26 18:37:38 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6 >>>>> 17/12/26 18:37:38 WARN tool.BaseSqoopTool: Setting your password on >>>>> the command-line is insecure. Consider using -P instead. >>>>> 17/12/26 18:37:39 INFO manager.MySQLManager: Preparing to use a MySQL >>>>> streaming resultset. >>>>> 17/12/26 18:37:39 INFO tool.CodeGenTool: Beginning code generation >>>>> 17/12/26 18:37:39 INFO manager.SqlManager: Executing SQL statement: >>>>> SELECT t.* FROM `ALL_TYPES` AS t LIMIT 1 >>>>> 17/12/26 18:37:39 ERROR sqoop.Sqoop: Got exception running Sqoop: >>>>> java.lang.IllegalArgumentException: We found column without column >>>>> name. Please verify that you've entered all column names in your query if >>>>> using free form query import (consider adding clause AS if you're using >>>>> column transformation) >>>>> java.lang.IllegalArgumentException: We found column without column >>>>> name. Please verify that you've entered all column names in your query if >>>>> using free form query import (consider adding clause AS if you're using >>>>> column transformation) >>>>> at org.apache.sqoop.orm.ClassWrit >>>>> er.generate(ClassWriter.java:1671) >>>>> at org.apache.sqoop.tool.CodeGenT >>>>> ool.generateORM(CodeGenTool.java:107) >>>>> at org.apache.sqoop.tool.ExportTo >>>>> ol.exportTable(ExportTool.java:64) >>>>> at org.apache.sqoop.tool.ExportTool.run(ExportTool.java:100) >>>>> at org.apache.sqoop.Sqoop.run(Sqoop.java:143) >>>>> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) >>>>> at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179) >>>>> at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218) >>>>> at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227) >>>>> at org.apache.sqoop.Sqoop.main(Sqoop.java:236) >>>> >>>> >>>> >>>> I checked the columns in MySQL table "ALL_TYPES" to ensure all column >>>> names in my query. >>>> Is there anything wrong with me? >>>> >>>> >>>> >>>> 2017-12-27 1:49 GMT+08:00 Ajana Chandiruthil Sathian <[email protected] >>>> >: >>>> >>>>> Hi, >>>>> >>>>> I am not sure whether I understand your question. Why do you want to >>>>> add the escape character to the column names? Did you try using the >>>>> --columns argument in your Sqoop command. Can you please send the Sqoop >>>>> command as well as the HDFS file format? Is HDFS file is in CSV form? >>>>> >>>>> On Mon, Dec 25, 2017 at 3:35 AM, 王峰 <[email protected]> >>>>> wrote: >>>>> >>>>>> Hello： >>>>>> >>>>>> I have a question on the export of sqoop(V1.4.6) need your help, >>>>>> the problem is as follows： >>>>>> >>>>>> When I export HDFS file into MySQL table `test` the `TABLE_SCHEMA` of >>>>>> `test` are as follows: >>>>>> >>>>>> "bankcard" >>>>>> "sex" >>>>>> "HTTPStateCode" >>>>>> "boolean" >>>>>> "domain" >>>>>> "ip" >>>>>> "array" >>>>>> "map" >>>>>> "idcard" >>>>>> "phone" >>>>>> "email" >>>>>> "post" >>>>>> "date" >>>>>> "uniform_date" >>>>>> "int" >>>>>> "double" >>>>>> "string" >>>>>> >>>>>> and got error like this: >>>>>> >>>>>> ERROR [Thread-11] org.apache.sqoop.mapreduce.AsyncSqlOutputFormat: Got >>>>>> exception in update thread: >>>>>> com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an >>>>>> error in your SQL syntax; check the manual that corresponds to your >>>>>> MariaDB server version for the right syntax to use near 'int, double, >>>>>> string) VALUES ('bankcard', 'sex', 'HTTPStateCode', 'boolean', 'dom' at >>>>>> line 1 >>>>>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) >>>>>> at >>>>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) >>>>>> at >>>>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) >>>>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:423) >>>>>> at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) >>>>>> at com.mysql.jdbc.Util.getInstance(Util.java:383) >>>>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1062) >>>>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4226) >>>>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4158) >>>>>> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615) >>>>>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776) >>>>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2840) >>>>>> at >>>>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2082) >>>>>> at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1302) >>>>>> at >>>>>> org.apache.sqoop.mapreduce.AsyncSqlOutputFormat$AsyncSqlExecThread.run(AsyncSqlOutputFormat.java:233) >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 1. I know the reason why the job going to false,And I want to ask if >>>>>> there is any way to specify the table columns like translate* int to >>>>>> `int` & double to `double`* in my case? >>>>>> >>>>>> 2. I want to edit the source code adding the escape char to column >>>>>> names,however, I could not find where the getColumnNamesForRawQuery is. >>>>>> I try to edit >>>>>> *org.apache.sqoop.manager.SqlManager.**getColumnNamesForRawQuery* as >>>>>> shows: >>>>>> >>>>>> >>>>>> code at 152: columns.add(colName); --> >>>>>> columns.add("`"+colName+"`"); >>>>>> >>>>>> >>>>>> But it did not work for me... >>>>>> >>>>>> >>>>>> Hope your helps Thanks.... >>>>>> >>>>>> >>>>> >>>> >>> >> >
