HIVE安裝時出現的問題

 

  在對HIVE安裝時出現了 MetaException(message:Version information not found in metastore.)

                               以及MetaException(message:Required table missing : "`DBS`" in Catalog "" Schema "". DataNucleus requires this table to perform its persistence operations. Either your MetaData is incorrect, or you need to enable "datanucleus.schema.autoCreateTables")的問題

  解決這兩個問題首先要打開位於/hive/conf/hive-site.xml這個文件

  第一個的原因是初次啓動時並沒有設置hive.metastore.schema.verification，所以將property寫上去就可以了

  第二個問題可以通過設置datanucleus.schema.autoCreateAll的值解決

  啓動時可能存在MySQL的ssl問題，如果存在的話，請在jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true這句話後面加上&useSSL=false（xml中&需要用&表示）

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true&amp;useSSL=false</value>
    <description>JDBC connect string for a JDBC metastore</description>
  </property>
  <property>
    <name>javax.jdo.option.ConnectionDriverName</name>
<value>com.mysql.jdbc.Driver</value>
    <description>Driver class name for a JDBC metastore</description>
  </property>
  <property>
<name>javax.jdo.option.ConnectionUserName</name>
    <value>hive</value>
    <description>username to use against metastore database</description>
  </property>
  <property>
<name>javax.jdo.option.ConnectionPassword</name>
    <value>hive</value>
    <description>password to use against metastore database</description>
  </property><property>
   <name>hive.metastore.schema.verification</name>
   <value>false</value>
    <description>
    Enforce metastore schema version consistency.
    True: Verify that version information stored in metastore matches with one from Hive jars.  Also disable automatic
          schema migration attempt. Users are required to manully migrate schema after Hive upgrade which ensures
          proper metastore schema migration. (Default)
    False: Warn if the version information stored in metastore doesn't match with one from in Hive jars.
    </description>
 </property>
<property>  
    <name>datanucleus.schema.autoCreateAll</name>  
    <value>true</value>  
    <description>creates necessary schema on a startup if one doesn't exist. set this to false, after creating it once</description>  
 </property>  
</configuration>