问题 ：
sqoop:000> start job -name m2h
Exception has occurred during processing command
Exception: org.apache.sqoop.common.SqoopException Message: GENERIC_JDBC_CONNECTOR_0016:Can't fetch schema -
d]
2019-06-01 10:23:53,689 INFO [org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.configurePartitionProperties(GenericJdbcFromInitializer.java:152)] Using partition column: deviceid
2019-06-01 10:23:53,689 INFO [org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.configurePartitionProperties(GenericJdbcFromInitializer.java:181)] Incremental new max value query: SELECT MAX("deviceid") FROM "mqh"."device"
2019-06-01 10:23:53,715 ERROR [org.apache.sqoop.server.SqoopProtocolServlet.doPut(SqoopProtocolServlet.java:86)] Exception in PUT http://localhost:12000/sqoop/v1/job/job-m2h/start
org.apache.sqoop.common.SqoopException: GENERIC_JDBC_CONNECTOR_0016:Can't fetch schema
at org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.initialize(GenericJdbcFromInitializer.java:64)
at org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.initialize(GenericJdbcFromInitializer.java:47)
at org.apache.sqoop.driver.JobManager$1.call(JobManager.java:520)
at org.apache.sqoop.driver.JobManager$1.call(JobManager.java:517)
at org.apache.sqoop.utils.ClassUtils.executeWithClassLoader(ClassUtils.java:281)
at org.apache.sqoop.driver.JobManager.initializeConnector(JobManager.java:516)
at org.apache.sqoop.driver.JobManager.createJobRequest(JobManager.java:423)
at org.apache.sqoop.driver.JobManager.start(JobManager.java:317)
at org.apache.sqoop.handler.JobRequestHandler.startJob(JobRequestHandler.java:353)
at org.apache.sqoop.handler.JobRequestHandler.handleEvent(JobRequestHandler.java:114)
at org.apache.sqoop.server.v1.JobServlet.handlePutRequest(JobServlet.java:84)
at org.apache.sqoop.server.SqoopProtocolServlet.doPut(SqoopProtocolServlet.java:81)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:574)
at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter.doFilter(DelegationTokenAuthenticationFilter.java:269)
at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:544)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"mqh"."device" WHERE 1 = 2' 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:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2011)
at org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.configurePartitionProperties(GenericJdbcFromInitializer.java:185)
at org.apache.sqoop.connector.jdbc.GenericJdbcFromInitializer.initialize(GenericJdbcFromInitializer.java:61)
... 32 more
解决方法：
Identifier enclose: 指定SQL中标识符的定界符，也就是说，有的SQL标示符是一个引号：select * from "table_name"，这种定界符在MySQL中是会报错的。这个属性默认值就是双引号，所以不能使用回车，必须将之覆盖，可使用空格覆盖了这个值。
Identifier enclose: 输入 空格
捐助开发者
在兴趣的驱动下,写一个免费的东西，有欣喜，也还有汗水，希望你喜欢我的作品，同时也能支持一下。 当然，有钱捧个钱场（支持支付宝和微信 以及扣扣群），没钱捧个人场，谢谢各位。
个人主页：http://knight-black-bob.iteye.com/
谢谢您的赞助，我会做的更好！