java.lang.RuntimeException：无法实例化org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

Question

我在ubuntu 14.0上安装了Hadoop 2.7.1和apache-hive-1.2.1版本。

1. 为什么会出现此错误？
2. 是否需要安装Metastore？
3. 当我们在终端上输入hive命令如何在内部调用xml时，这些xml的流量是什么？
4. 是否需要任何其他配置？

当我在ubuntu 14.0终端上编写hive命令时，它会抛出以下异常。

 $ hive

    Logging initialized using configuration in jar:file:/usr/local/hive/apache-hive-1.2.1-bin/lib/hive-common-1.2.1.jar!/hive-log4j.properties
    Exception in thread "main" 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)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:677)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:520)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
    Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
        at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1523)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
        at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
        ... 8 more
    Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:426)
        at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1521)
        ... 14 more
    Caused by: javax.jdo.JDOFatalInternalException: Error creating transactional connection factory
    NestedThrowables:
    java.lang.reflect.InvocationTargetException
        at org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:587)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:788)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:333)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:202)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:520)
        at javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:365)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:394)
        at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:291)
        at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:258)
        at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:57)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:66)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:593)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:571)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:624)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:461)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72)
        at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:199)
        at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
        ... 19 more
    Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:426)
        at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:631)
        at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:325)
        at org.datanucleus.store.AbstractStoreManager.registerConnectionFactory(AbstractStoreManager.java:282)
        at org.datanucleus.store.AbstractStoreManager.<init>(AbstractStoreManager.java:240)
        at org.datanucleus.store.rdbms.RDBMSStoreManager.<init>(RDBMSStoreManager.java:286)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:426)
        at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:631)
        at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:301)
        at org.datanucleus.NucleusContext.createStoreManagerForProperties(NucleusContext.java:1187)
        at org.datanucleus.NucleusContext.initialise(NucleusContext.java:356)
        at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:775)
        ... 48 more
    Caused by: org.datanucleus.exceptions.NucleusException: Attempt to invoke the "BONECP" plugin to create a ConnectionPool gave an error : The specified datastore driver ("com.mysql.jdbc.Driver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver.
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:259)
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl.initialiseDataSources(ConnectionFactoryImpl.java:131)
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl.<init>(ConnectionFactoryImpl.java:85)
        ... 66 more
    Caused by: org.datanucleus.store.rdbms.connectionpool.DatastoreDriverNotFoundException: The specified datastore driver ("com.mysql.jdbc.Driver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver.
        at org.datanucleus.store.rdbms.connectionpool.AbstractConnectionPoolFactory.loadDriver(AbstractConnectionPoolFactory.java:58)
        at org.datanucleus.store.rdbms.connectionpool.BoneCPConnectionPoolFactory.createConnectionPool(BoneCPConnectionPoolFactory.java:54)
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:238)
        ... 68 more

为了避免上述错误，我创建了hive-site.xml：

 <configuration>

      <property>
        <name>hive.metastore.warehouse.dir</name>
        <value>/home/local/hive-metastore-dir/warehouse</value>

      </property>

    <property>
      <name>javax.jdo.option.ConnectionURL</name>
      <value>jdbc:mysql://localhost:3306/hivedb?createDatabaseIfNotExist=true</value>
    </property>
    <property>
      <name>javax.jdo.option.ConnectionDriverName</name>
      <value>com.mysql.jdbc.Driver</value>
    </property>
    <property>
      <name>javax.jdo.option.ConnectionUserName</name>
      <value>user</value>
    </property>
    <property>
      <name>javax.jdo.option.ConnectionPassword</name>
      <value>password</value>
    </property>

    <configuration>

还在~/.bashrc file中提供了环境变量;仍然存在错误

#HIVE home directory configuration
export HIVE_HOME=/usr/local/hive/apache-hive-1.2.1-bin
export PATH="$PATH:$HIVE_HOME/bin"

Answer 1

I did below modifications and I am able to start the Hive Shell without any errors:

1。的〜/ .bashrc

在bashrc文件中，在End of File中添加以下环境变量：sudo gedit~ / .bashrc

#Java Home directory configuration
export JAVA_HOME="/usr/lib/jvm/java-9-oracle"
export PATH="$PATH:$JAVA_HOME/bin"

# Hadoop home directory configuration
export HADOOP_HOME=/usr/local/hadoop
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin

export HIVE_HOME=/usr/lib/hive
export PATH=$PATH:$HIVE_HOME/bin

2。蜂房的site.xml

您必须在Hive的conf目录中创建此文件（hive-site.xml）并添加以下详细信息

<?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/metastore?createDatabaseIfNotExist=true</value>
</property>


<property>
  <name>javax.jdo.option.ConnectionDriverName</name>
  <value>com.mysql.jdbc.Driver</value>
</property>

<property>
  <name>javax.jdo.option.ConnectionUserName</name>
  <value>root</value>
</property>

<property>
  <name>javax.jdo.option.ConnectionPassword</name>
  <value>root</value>
</property>

<property>
  <name>datanucleus.autoCreateSchema</name>
  <value>true</value>
</property>

<property>
  <name>datanucleus.fixedDatastore</name>
  <value>true</value>
</property>

<property>
 <name>datanucleus.autoCreateTables</name>
 <value>True</value>
 </property>

</configuration>

3。您还需要将jar文件（mysql-connector-java-5.1.28.jar）放在Hive的lib目录中

4。下面的Ubuntu启动Hive Shell所需的安装：

    4.1 MySql
    4.2 Hadoop
    4.3 Hive
    4.4 Java

5。执行部分：

1. Start all services of Hadoop: start-all.sh

2. Enter the jps command to check whether all Hadoop services are up and running: jps

3. Enter the hive command to enter into hive shell: hive

Answer 2

启动hive Metastore服务对我有用。 首先，为hive Metastore设置数据库：

 $ hive --service metastore 

` https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.4/bk_installing_manually_book/content/validate_installation.html

其次，运行以下命令：

 $ schematool -dbType mysql -initSchema  
 $ schematool -dbType mysql -info

https://cwiki.apache.org/confluence/display/Hive/Hive+Schema+Tool

Answer 3

在我尝试的情况下

$ hive --service metastore 

我得到了

  

MetaException（消息：在Metastore中找不到版本信息。）

MySQL中缺少Metastore所需的必要表。手动创建表并重新启动hive Metastore。

cd $HIVE_HOME/scripts/metastore/upgrade/mysql/ 

< Login into MySQL > 

mysql> drop database IF EXISTS <metastore db name>; 
mysql> create database <metastore db name>; 
mysql> use <metastore db name>; 
mysql> source hive-schema-2.x.x.mysql.sql; 

Metastore db name 应与 hive-site.xml 文件连接属性标记中提到的数据库名称匹配。

hive-schema-2.x.x.mysql.sql 文件取决于当前目录中可用的版本。尝试使用最新版本，因为它还包含许多旧的模式文件。

现在尝试执行hive --service metastore 如果一切都很酷，那么只需从终端启动配置单元。

>hive

我希望上述答案能满足您的需求。

Answer 4

如果您只是在本地模式下玩耍，则可以删除元存储数据库并恢复它：

rm -rf metastore_db/
$HIVE_HOME/bin/schematool -initSchema -dbType derby

Answer 5

在堆栈跟踪的中间，丢失了＆＃34;反射＆＃34;垃圾，你可以找到根本原因：

在CLASSPATH中找不到指定的数据存储驱动程序（＆＃34; com.mysql.jdbc.Driver＆＃34;）。请检查您的CLASSPATH规范以及驱动程序的名称。

Answer 6

以调试模式运行配置单元

hive -hiveconf hive.root.logger=DEBUG,console

然后执行

show tables

可以找到实际问题

Answer 7

mybe您的配置单元metastore不一致！我在这个场景中。

第一。我跑

 $ schematool -dbType mysql -initSchema  

然后我发现了这个

> 错误：重复的键名称“ PCS_STATS_IDX”（状态= 42000，代码= 1061） org.apache.hadoop.hive.metastore.HiveMetaException：模式初始化失败！ Metastore状态将不一致！

然后我跑步

 $ schematool -dbType mysql -info

发现此错误

  

Hive发行版：2.3.0   Metastore模式版本：1.2.0   org.apache.hadoop.hive.metastore.HiveMetaException：Metastore模式版本不兼容。蜂巢版本：2.3.0，数据库架构版本：1.2.0

所以我格式化了我的蜂巢元存储，然后就完成了！ *删除mysql数据库，该数据库名为hive_db *运行schematool -dbType mysql -initSchema初始化元数据

Answer 8

这可能是由于缺少与Hive Meta Store的连接，我的Hive Meta Store存储在Mysql中，所以我需要访问Mysql，因此我在{ {1}}

build.sbt

问题解决了！

Answer 9

请删除hadoop目录中的MetaStore_db并使用hadoop namenode -format格式化hdfs，然后尝试使用start-all.sh重新启动hadoop。

Answer 10

我也遇到过这个问题，但我重新启动了Hadoop并使用命令hadoop dfsadmin -safemode leave

现在开始蜂巢它会起作用我认为

Answer 11

我已将MySQL DB用于Hive MetaStore。请按照以下步骤操作：

• 在hive-site.xml中，元存储应该是正确的

<property>
 <name>javax.jdo.option.ConnectionURL</name> 
 <value>jdbc:mysql://localhost/metastorecreateDatabaseIfNotExist=true&amp;useSSL=false</value>
</property>

• 转到mysql：mysql -u hduser -p
• 然后运行drop database metastore
• 然后从MySQL中出来并执行schematool -initSchema dbType mysql

现在错误会消失。

Answer 12

我通过从spark-submit提交代码中删除--deploy-mode集群解决了这个问题。 默认情况下，spark提交采用客户端模式，它具有以下优点：

1. It opens up Netty HTTP server and distributes all jars to the worker nodes.
2. Driver program runs on master node , which means dedicated resources to driver process.

处于集群模式时：

 1.  It runs on worker node.
 2. All the jars need to be placed in a common folder of the cluster so that it is accessible to all the worker nodes or in folder of each worker node.

此处，由于蜂巢jar无法访问群集中的任何节点，因此无法访问蜂巢元存储。

Answer 13

编辑（bashrc）和（hive-site.xml）文件后，只需从hive文件夹中打开hive终端即可。 脚步 - 打开安装它的配置单元文件夹。 现在从文件夹打开终端。

Answer 14

就我而言，我停止了我的 docker hive 容器并再次运行它，最后，它起作用了。希望对某人有用。

注意：这可能是因为可能有一个实例在后台运行，因此停止容器将停止所有后台实例。

Answer 15

发生这种情况是因为您还没有启动 Hive Metastore ……最简单的方法是使用默认的 Derby 数据库一……您可以点击此链接：https://sparkbyexamples.com/apache-hive/hive-hiveexception-java-lang-runtimeexception-unable-to-instantiate-org-apache-hadoop-hive-ql-metadata-sessionhivemetastoreclient/

Answer 16

你只需要实例化架构，你可以用下面的命令做同样的事情。我编辑它并且能够在不抛出的情况下运行配置单元查询 错误：无法实例化 org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

cd $HIVE_HOME
mv metastore_db metastore_db_bkup
schematool -initSchema -dbType derby
bin/hive

现在运行您的查询：

hive> show databases;