“使用 derby 配置 hive”答案

【问题标题】："Configuring hive with derby"“使用 derby 配置 hive”
【发布时间】：2018-11-02 10:21:10
【问题描述】：

hive-site.xml

<property>
  <name>javax.jdo.option.ConnectionURL</name>
  <value>jdbc:derby://localhost:1527/metastore_db;create=true</value>
  <description>JDBC connect string for a JDBC metastore</description>
</property>

<property>
  <name>javax.jdo.option.ConnectionDriverName</name>
  <value>org.apache.derby.jdbc.ClientDriver</value>
  <description>Driver class name for a JDBC metastore</description>
</property>

<property>
<name>hive.metastore.warehouse.dir</name>
<value>/user/hive/warehouse</value>
<description>location of default database for the warehouse</description>
</property>

[user1@slave3 ~]$ hive

which: no hbase in (/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/user1/hadoop-2.9.0/bin:/usr/local/jdk1.8.0_161/bin:/home/user1/hadoop-2.9.0/sbin:/home/user1/sqoop-1.4.7.bin__hadoop-2.6.0/bin:/home/user1/apache-hive-2.3.2-bin/bin:/usr/local/derby/bin:/home/user1/.local/bin:/home/user1/bin:usr/local/jdk1.8.0_161/bin:/home/user1/hadoop-2.9.0/bin:/usr/local/jdk1.8.0_161/bin:/home/user1/hadoop-2.9.0/sbin:/home/user1/sqoop-1.4.7.bin__hadoop-2.6.0/bin:/home/user1/apache-hive-2.3.2-bin/bin:/usr/local/derby/bin)
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/user1/apache-hive-2.3.2-bin/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/user1/hadoop-2.9.0/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]

Logging initialized using configuration in jar:file:/home/user1/apache-hive-2.3.2-bin/lib/hive-common-2.3.2.jar!/hive-log4j2.properties Async: true
Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.

hive> 显示数据库；

FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

enter image description here

我正在尝试安装 hive，但它给出了 SemanticException。谁能帮忙？

【问题讨论】：

标签： hive derby hadoop2

【解决方案1】：

我得到了同样的错误，这只是因为两个 SLF4j 正在运行，但 java 只使用一个强制依赖项，所以你只需要删除这个文件。我从我的蜂巢中删除了它，它就起作用了。

你所要做的就是删除这个文件

log4j-slf4j-impl-2.6.2.jar！

来自

/home/user1/apache-hive-2.3.2-bin/lib/

你可以走了。

【讨论】：

【解决方案2】：

您是否启动了元存储？在 hive 上运行查询之前，您的 Metastore 必须启动并运行。

运行以下命令创建元存储数据库

schematool -dbType 德比 -initSchema

然后启动元存储

hive --service metastore &

【讨论】：