Atlas导入Hive元数据

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本文详细介绍如何通过配置hive-site.xml、添加HIVE_AUX_JARS_PATH环境变量、修改import-hive.sh脚本来解决Hive元数据导入Apache Atlas过程中遇到的NoSuchMethodError异常，最终实现元数据的成功导入。

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1、设置hive-site.xml ;

  <property>
      <name>hive.exec.post.hooks</name>
      <value>org.apache.atlas.hive.hook.HiveHook</value>
    </property>

2、添加HIVE_AUX_JARS_PATH到Hive安装目录下conf目录中的hive-env.sh ；

export HIVE_AUX_JARS_PATH=<atlas安装包位置>/hook/hive

本机器修改为：
export HIVE_AUX_JARS_PATH=/home/dmp/apache-atlas-sources-1.0.0/distro/target/apache-atlas-1.0.0/hook/hive

3、启动 import-hive.sh脚本

/home/dmp/apache-atlas-sources-1.0.0/distro/target/apache-atlas-1.0.0/bin/import-hive.sh

4、导入结果如下则导入成功：

[root@dmp9 bin]# ./import-hive.sh 
Using Hive configuration directory [/home/dmp/apache-hive-1.2.1-bin/conf]
Log file for import is /home/dmp/apache-atlas-sources-1.0.0/distro/target/apache-atlas-1.0.0/logs/import-hive.log
log4j:WARN No such property [maxFileSize] in org.apache.log4j.PatternLayout.
log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.PatternLayout.
Enter username for atlas :- admin
Enter password for atlas :- 
Hive Meta Data imported successfully!!!

5、刷新页面后可见：

6、导入错误

[root@dmp9 bin]# ./import-hive.sh
Using Hive configuration directory [/home/dmp/apache-hive-1.2.1-bin/conf]
Log file for import is /home/apache-atlas-1.0.0-bin/apache-atlas-1.0.0/logs/import-hive.log
log4j:WARN No such property [maxFileSize] in org.apache.log4j.PatternLayout.
log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.PatternLayout.
Enter username for atlas :- admin
Enter password for atlas :-
Exception in thread "main" java.lang.NoSuchMethodError: org.apache.hadoop.conf.Configuration.addDeprecations([Lorg/apache/hadoop/conf/Configuration$DeprecationDelta;)V
        at org.apache.hadoop.hdfs.HdfsConfiguration.addDeprecatedKeys(HdfsConfiguration.java:66)
        at org.apache.hadoop.hdfs.HdfsConfiguration.<clinit>(HdfsConfiguration.java:31)
        at org.apache.atlas.utils.HdfsNameServiceResolver.init(HdfsNameServiceResolver.java:139)
        at org.apache.atlas.utils.HdfsNameServiceResolver.<clinit>(HdfsNameServiceResolver.java:47)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.toDbEntity(HiveMetaStoreBridge.java:533)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.toDbEntity(HiveMetaStoreBridge.java:517)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.registerDatabase(HiveMetaStoreBridge.java:384)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.importDatabases(HiveMetaStoreBridge.java:263)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.importHiveMetadata(HiveMetaStoreBridge.java:247)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.main(HiveMetaStoreBridge.java:168)
Failed to import Hive Meta Data!!!

7、问题分析，猜测是加载的jar包不对

[Loaded org.apache.hadoop.hdfs.HdfsConfiguration from file:/home/dmp/hadoop-2.7.3/share/hadoop/hdfs/hadoop-hdfs-2.7.3.jar]
[Loaded org.apache.hadoop.conf.Configuration$DeprecationDelta from file:/home/dmp/hadoop-2.7.3/share/hadoop/common/hadoop-common-2.7.3.jar]
Exception in thread "main" [Loaded java.lang.Throwable$WrappedPrintStream from /usr/java/jdk1.8.0_181/jre/lib/rt.jar]
java.lang.NoSuchMethodError: org.apache.hadoop.conf.Configuration.addDeprecations([Lorg/apache/hadoop/conf/Configuration$DeprecationDelta;)V
        at org.apache.hadoop.hdfs.HdfsConfiguration.addDeprecatedKeys(HdfsConfiguration.java:66)
        at org.apache.hadoop.hdfs.HdfsConfiguration.<clinit>(HdfsConfiguration.java:31)
        at org.apache.atlas.utils.HdfsNameServiceResolver.init(HdfsNameServiceResolver.java:139)
        at org.apache.atlas.utils.HdfsNameServiceResolver.<clinit>(HdfsNameServiceResolver.java:47)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.toDbEntity(HiveMetaStoreBridge.java:533)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.registerDatabase(HiveMetaStoreBridge.java:388)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.importDatabases(HiveMetaStoreBridge.java:263)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.importHiveMetadata(HiveMetaStoreBridge.java:247)
        at org.apache.atlas.hive.bridge.HiveMetaStoreBridge.main(HiveMetaStoreBridge.java:168)
[Loaded java.util.IdentityHashMap$IdentityHashMapIterator from /usr/java/jdk1.8.0_181/jre/lib/rt.jar]
[Loaded java.util.IdentityHashMap$KeyIterator from /usr/java/jdk1.8.0_181/jre/lib/rt.jar]
Failed to import Hive Meta Data!!!

1）、从hadoop-common的加载的configuration包有org.apache.hadoop.conf.Configuration ; 但是没找到加载Configuration 的类，估计这样才导致找不到方法吧：org.apache.hadoop.conf.Configuration.addDeprecations([Lorg/apache/hadoop/conf/Configuration$DeprecationDelta;)

2）、查看hadoop-hdfs包，发现有org.apache.hadoop.hdfs.HdfsConfiguration配置类；

8、解决方法

修改import-hive.sh 修改内容如下:

CP="${ATLASCPPATH}:${HADOOP_CP}:${HIVE_CP}"