作者：刘权

时间：2016-08-18

背景介绍

1.软件版本

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• hive : hive-0.13.1
• spark : spark-1.2.0-bin-hadoop2.3
• hadoop : hadoop-2.2.0
• phoenix : phoenix-4.4.0-HBase-0.98
• hbase : hbase-0.98.0-hadoop2

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2. 准备工作

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1. 保证hdfs可用
2. 保证hive可用

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3. 配置spark

3.1 设置SPARK_CLASSPATH

vi $SPARK_HOME/conf/spark-env.sh

export SPARK_CLASSPATH=$SPARK_CLASSPATH:/home/yarn/spark/lib/mysql-connector-java-5.1.17.jar:/home/yarn/hadoop-2.2.0/lib/*:/home/yarn/hbase-0.98.0-hadoop2/lib/hbase-protocol-0.98.0-hadoop2.jar

3.2 拷贝hdfs-site.xml hive-site.xml

cp $HADOOP_HOME/hdfs-site.xml  $SPARK_HOME/conf/
cp $HIVE_HOME/conf/hive-site.xml $SPARK_HOME/conf/

---

4. 常见问题：

4.1. hive连接元数据报错

检查：mysql中hive的元数据字符集，hive要求元数据库字符集必须为：latin1
如果不是：使用以下命令修改字符集编码

alter database hive character set latin1;
ALTER TABLE hive.* DEFAULT CHARACTER SET latin1;

4.2.注意：spark.driver.extraClassPath和SPARK_CLASSPATH这两个设置同时存在一个

4.3. IllegalAccessError: class com.google.protobuf.ZeroCopyLiteralByteString cannot access its superclass com.google.protobuf.LiteralByteString

问题原因：

这个问题的发生是由于优化了HBASE-9867 引起的，无意间引进了一个依赖类加载器。
它影响使用-libjars参数和使用 fat jar两种模式的job. 

fat jar模式Hadoop的一个特殊功能：
可以读取操作目录中/lib目录下包含的所有库的JAR文件，
把运行job依赖的jar放在jar中的lib目录下。

解决方案：

将hbase-protocol-0.98.0-hadoop2.jar加入SPARK_CLASSPATH中

4.4. MetaException(message:java.lang.ClassNotFoundException Class org.apache.phoenix.hive.PhoenixSerde

尝试方案：

1. 将phoenix-hive-4.2.2-jar-with-dependencies.jar加入SPARK_CLASSPATH ==尝试结果：失败==
2. 将phoenix-hive-4.2.2-jar-with-dependencies.jar设置到$SPARK_CLASSPATH/conf/hive-site.xml ==尝试结果：失败==

最终解决方案：

在执行spark-sql或spark-shell时候加入参数：
--jars /home/yarn/hive/lib/phoenix-hive-4.2.2-jar-with-dependencies.jar

如下:

spark-sql --master spark://big147:7077 --executor-memory 20G --total-executor-cores 2  --jars /home/yarn/hive/lib/phoenix-hive-4.2.2-jar-with-dependencies.jar

4.5 mysql驱动问题

问题详情：

Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:346)
        at org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver$.main(SparkSQLCLIDriver.scala:101)
        at org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver.main(SparkSQLCLIDriver.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.spark.deploy.SparkSubmit$.launch(SparkSubmit.scala:358)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:75)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
        at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1412)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:62)
        at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:72)
        at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:2453)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:2465)
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:340)
        ... 9 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1410)
        ... 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:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:310)
        at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:339)
        at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:248)
        at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:223)
        at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:58)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:67)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:497)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:475)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:523)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:397)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:356)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:54)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:59)
        at org.apache.hadoop.hive.metastore.HiveMetaStore.newHMSHandler(HiveMetaStore.java:4944)
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:171)
        ... 19 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        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:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        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 "dbcp-builtin" 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.DBCPBuiltinConnectionPoolFactory.createConnectionPool(DBCPBuiltinConnectionPoolFactory.java:49)
        at org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:238)
        ... 68 more

解决方案：

方案1.
执行spark-sql或spark-shell加入参数 --driver-class-path执行驱动位置

 spark-shell --master spark://big147:7077 --executor-memory 20G --total-executor-cores 2 --driver-class-path /home/yarn/hive/lib/mysql-connector-java-5.1.26.jar

方案2.
将驱动包加入SPARK_CLASSPATH:如下

vi $SPARK_HOME/conf/spark-env.sh 
export SPARK_CLASSPATH=$SPARK_CLASSPATH:/home/yarn/hadoop-2.2.0/lib/*:/home/yarn/hbase-0.98.0-hadoop2/lib/hbase-protocol-0.98.0:/home/yarn/spark/lib/mysql-c
onnector-java-5.1.17.jar