我在hosts文件里配置了namenode的映射地址后解决了，想不明白的是我已经在hive-site.xml里直接指定虚拟机ip了，为什么还会报这个错？想问下这个报错是在哪里读取的namenode的？

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<configuration>
    <property>
        <name>hive.metastore.uris</name>
        <value>thrift://192.168.31.200:9083</value>
    </property>
    <property>
        <name>datanucleus.autoCreateSchema</name>
        <value>false</value>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionURL</name>
        <value>jdbc:192.168.31.200://hive-metastore-postgresql/metastore</value>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionDriverName</name>
        <value>org.postgresql.Driver</value>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionPassword</name>
        <value>hive</value>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionUserName</name>
        <value>hive</value>
    </property>
    <property>
        <name>hive.metastore.warehouse.dir</name>
        <value>hdfs://192.168.31.200:8020/user/hive/warehouse</value>
    </property>
</configuration>