如何使用hive-common-1.2.1.jar配置使用HiveConf类访问HDFS(namenode HA)?

时间:2016-05-20 07:39:24

标签: hive hcatalog metastore

谁知道为什么课程HiveConf现在HADOOPCONF中没有hive-common jar枚举类型?

我使用hive-common-1.2.1.jar HiveConf类编写代码来访问HDFS(HA namenode),我在下面收到错误。

我意识到我的代码没有配置HADOOPCONF所以它无法连接到HDFS,但hive-common-1.2.1.jar中没有HADOOPCONF,我发现以前hive-common的版本有HADOOPCONF。

http://www.docjar.com/html/api/org/apache/hadoop/hive/conf/HiveConf.java.html

我的问题是如何使用hive-common-1.2.1.jar配置使用HiveConf类访问HDFS(namenode HA)?

这是错误:

Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: cluster
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:374)
at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:312)
at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:178)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:665)

我的代码是:

hiveConf.setVar(HiveConf.ConfVars.HADOOPBIN, "/opt/modules/hadoop/bin");
hiveConf.setVar(HiveConf.ConfVars.HADOOPFS, "hdfs://cluster");
hiveConf.setVar(HiveConf.ConfVars.LOCALSCRATCHDIR, "/opt/modules/hive/temp");
hiveConf.setVar(HiveConf.ConfVars.DOWNLOADED_RESOURCES_DIR, "/opt/modules/hive/temp");
hiveConf.setBoolVar(HiveConf.ConfVars.HIVE_SUPPORT_CONCURRENCY, false);
hiveConf.setVar(HiveConf.ConfVars.METASTOREWAREHOUSE, "/warehouse");
hiveConf.setVar(HiveConf.ConfVars.METASTOREURIS, "thrift://127.0.0.1:9083");
hiveConf.setVar(HiveConf.ConfVars.METASTORE_CONNECTION_DRIVER, "com.mysql.jdbc.Driver");
hiveConf.setVar(HiveConf.ConfVars.METASTORECONNECTURLKEY, "jdbc:mysql://192.168.5.29:3306/hive?createDatabaseIfNotExist=true");
hiveConf.setVar(HiveConf.ConfVars.METASTORE_CONNECTION_USER_NAME, "hive");
hiveConf.setVar(HiveConf.ConfVars.METASTOREPWD, "123456");
hiveConf.setVar(HiveConf.ConfVars.HIVEHISTORYFILELOC, "/opt/modules/hive/temp");

1 个答案:

答案 0 :(得分:0)

好的,我解决了这个问题。 因为hive-common jar中的类HiveConf默认情况下从hadoop加载“hdfs-site.xml”,所以如果只运行它时设置指向“hdfs-site.xml”文件夹的类路径。

CLASSPATH=$CLASSPATH:/opt/modules/hadoop/conf
$JAVA -cp $CLASSPATH com.baofeng.data.writer.HiveHcatalogWriter