想从oozie那里得到一份刺激的工作。下面是我试图运行的代码。

SparkConf conf = getConf(appName);
JavaSparkContext sc = new JavaSparkContext(conf);
HiveContext hiveContext = new HiveContext(sc);

我得到以下错误：

JOB[0000000-170808082825775-oozie-oozi-W] ACTION[0000000-170808082825775-oozie-oozi-W@Sample-node] Launcher exception: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
    at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:522)

这是我的工作流xml文件

<workflow-app name="DataSampling" xmlns="uri:oozie:workflow:0.4">
    <start to='Sample-node'/>
    <action name="Sample-node">
        <spark xmlns="uri:oozie:spark-action:0.1">
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
                        <configuration>
                                <property>
                                        <name>tez.lib.uris</name>
                                        <value>/hdp/apps/2.5.3.0-37/tez/tez.tar.gz</value>
                                </property>
                        </configuration>
            <master>${master}</master>
            <mode>${mode}</mode>
            <name>Sample class on Oozie - Sampling</name>
            <class>Sampling</class>
            <jar>/path/jarfile.jar</jar>
            <arg>${numEventsPerPattern}</arg>
            <arg>${eventdate}</arg>
            <arg>${eventtype}</arg>
            <arg>${user}</arg>
        </spark>
        <ok to="end"/>
        <error to="fail"/>
    </action>
   <kill name="fail">
        <message>Workflow failed, error
            message[${wf:errorMessage(wf:lastErrorNode())}]
        </message>
    </kill>
    <end name='end'/>
</workflow-app>

我使用的是hortonworks数据平台2.5。如果我在类路径中丢失了一些东西，请任何人帮忙。
提前谢谢。