Oozie Sqoop作业

Question

我正在尝试将sqoop作业作为oozie操作来运行。我在jobtracker节点上有MySQL作为转移存储。我在某处读到oozie sqoop不能从import创建hive表。因此，我尝试将数据转储到hdfs中。这仍然是真的吗？

我查过分享库了。

我正在尝试从MS SQL数据库执行Sqoop。

当我运行sqoop命令时，它不需要shell中的元存储，它可以工作。

sqoop import --connect 'jdbc:sqlserver://host;username=sqoopimport;password=password;database=db1' --table t1--target-dir /user/root/sqoop-import/tmp/t1

当我尝试将其作为sqoop操作运行时，收到以下错误

    >>> Invoking Sqoop command line now >>>

2151 [main] WARN  org.apache.sqoop.tool.SqoopTool  - $SQOOP_CONF_DIR has not been set in the environment. Cannot check for additional configuration.
2259 [main] WARN  org.apache.sqoop.ConnFactory  - $SQOOP_CONF_DIR has not been set in the environment. Cannot check for additional configuration.
2285 [main] ERROR org.apache.sqoop.tool.BaseSqoopTool  - Got error creating database manager: java.io.IOException: No manager for connect string: 'jdbc:sqlserver://host;username=sqoopimport;password=password;database=db1'
at org.apache.sqoop.ConnFactory.getManager(ConnFactory.java:185)
at org.apache.sqoop.tool.BaseSqoopTool.init(BaseSqoopTool.java:217)
at org.apache.sqoop.tool.ImportTool.init(ImportTool.java:83)
at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:464)
at org.apache.sqoop.Sqoop.run(Sqoop.java:145)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)
at org.apache.sqoop.Sqoop.main(Sqoop.java:238)
at org.apache.oozie.action.hadoop.SqoopMain.runSqoopJob(SqoopMain.java:203)
at org.apache.oozie.action.hadoop.SqoopMain.run(SqoopMain.java:172)
at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:37)
at org.apache.oozie.action.hadoop.SqoopMain.main(SqoopMain.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:495)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
at org.apache.hadoop.mapred.Child.main(Child.java:262)

workflow.xml

<?xml version="1.0" encoding="UTF-8"?>
<workflow-app xmlns="uri:oozie:workflow:0.2" name="sqoop-wf">
    <start to="sqoop-node"/>

    <action name="sqoop-node">
        <sqoop xmlns="uri:oozie:sqoop-action:0.2">
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
             <configuration>
                <property>
                    <name>mapred.job.queue.name</name>
                    <value>${queueName}</value>
                </property>
                 <property>
             <name>oozie.use.system.libpath</name>
             <value>true</value>
           </property>
           <property>
             <name>oozie.libpath</name>
             <value>/user/oozie/share/lib/sqoop</value>
           </property>
            </configuration>
            <command>import --connect 'jdbc:sqlserver://host;username=sqoopimport;password=password;database=db1' --table t1--target-dir /user/root/sqoop-import/tmp/t1</command>
        </sqoop>
        <ok to="end"/>
        <error to="fail"/>
    </action>

    <kill name="fail">
        <message>Sqoop failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <end name="end"/>
</workflow-app>

我认为这是主要原因。我在共享库目录2285中有库主要错误org.apache.sqoop.tool.BaseSqoopTool - Got创建数据库管理器时出错: java.io.IOException:没有连接字符串的管理器：

我是不是漏掉了什么？任何帮助都是非常感谢的。

谢谢，Abhishek

Answer 1

当您使用shell (例如Bash或ZSH)执行Sqoop时，您需要手动转义参数，以便shell不会更改它们。在您的示例中，您将JDBC URL放在引号中，这样分号就不会被解释为命令的结尾。由于Oozie没有使用shell调用Sqoop，因此这些转义字符无效。因此，您应该删除在oozie工作流中为shell引入的转义。

例如：

<command>import --connect jdbc:sqlserver://host;username=sqoopimport;password=password;database=db1 --table t1--target-dir /user/root/sqoop-import/tmp/t1</command>

还请注意，建议在JDBC URL中使用参数--username和--password，而不要使用相同的命名属性。

Answer 2

尝试在arguments>中提供--driver com.microsoft.jdbc.sqlserver.SQLServerDriver，同时确保类路径中存在MS SQL Server JDBC jar。