我有一个要求,要求我从单独的JVM会话中触发多个并行SQOOP作业。 因此,我无法使用OOZIE并行触发作业。当我单独触发作业时,我收到以下错误:
ERROR manager.SqlManager: Error executing statement: java.sql.SQLException: End of TNS data channel
java.sql.SQLException: End of TNS data channel
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at org.apache.sqoop.manager.OracleManager.makeConnection(OracleManager.java:327)
at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)
at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:736)
at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:759)
at org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:269)
at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:240)
at org.apache.sqoop.manager.SqlManager.getColumnTypes(SqlManager.java:226)
at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:295)
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)
如果按顺序触发它们,它们会毫无问题地执行。 以下是关于我工作的一些重点:
我试图找出SQOOP并行运行是否有任何报告问题,但找不到任何问题。
感谢。