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Posted to dev@sqoop.apache.org by "Jeff (JIRA)" <ji...@apache.org> on 2016/05/09 20:09:12 UTC

[jira] [Commented] (SQOOP-2349) Transaction isolation level for metadata queries should be mutable

    [ https://issues.apache.org/jira/browse/SQOOP-2349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15276930#comment-15276930 ] 

Jeff commented on SQOOP-2349:
-----------------------------

This also impacts non-logging informix DBs. Any attempt to set the isolation level on an informix DB that is is_logging=0 will result in a failure.

> Transaction isolation level for metadata queries should be mutable
> ------------------------------------------------------------------
>
>                 Key: SQOOP-2349
>                 URL: https://issues.apache.org/jira/browse/SQOOP-2349
>             Project: Sqoop
>          Issue Type: Bug
>    Affects Versions: 1.4.6
>            Reporter: Abraham Elmahrek
>             Fix For: 1.4.7
>
>
> Databases like PDW have don't accept READ COMMITTED isolation level:
> {code}
> com.microsoft.sqlserver.jdbc.SQLServerException: Setting IsolationLevel to ReadCommitted is not supported.
>         at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:197)
>         at com.microsoft.sqlserver.jdbc.TDSTokenHandler.onEOF(tdsparser.java:246)
>         at com.microsoft.sqlserver.jdbc.TDSParser.parse(tdsparser.java:83)
>         at com.microsoft.sqlserver.jdbc.TDSParser.parse(tdsparser.java:39)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection$1ConnectionCommand.doExecute(SQLServerConnection.java:1441)
>         at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:4575)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1400)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectionCommand(SQLServerConnection.java:1446)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:1907)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(SQLServerConnection.java:41)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:1893)
>         at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:4575)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1400)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1045)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:817)
>         at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:700)
>         at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:842)
>         at java.sql.DriverManager.getConnection(DriverManager.java:571)
>         at java.sql.DriverManager.getConnection(DriverManager.java:215)
>         at org.apache.sqoop.manager.SqlManager.makeConnection(SqlManager.java:880)
>         at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)
>         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:739)
>         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:762)
>         at org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:270)
>         at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:241)
>         at org.apache.sqoop.manager.SqlManager.getColumnTypesForQuery(SqlManager.java:234)
>         at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:304)
>         at org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1833)
>         at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1645)
>         at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:96)
>         at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:478)
>         at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
>         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)
> 15/05/06 10:07:34 ERROR tool.ImportTool: Encountered IOException running import job: java.io.IOException: No columns to generate for ClassWriter
>         at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1651)
>         at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:96)
>         at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:478)
>         at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
>         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)
> {code}
> Let's make it so that the isolation for metadata queries doesn't set the transaction isolation level or make it mutable.



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