使用DBeaver鏈接Hive

1.Hive開啓HiveMetastore和HiveServer2

nohup /opt/module/hive3.1.2/bin/hive --service metastore >$HIVE_LOG_DIR/metastore.log 2>&1 &
nohup /opt/module/hive3.1.2/bin/hive --service hiveserver2 >$HIVE_LOG_DIR/hiveServer2.log 2>&1 &

2.配置鏈接的用戶名和密碼

vim conf/hive-site.xml

<property>
  <name>hive.server2.thrift.client.user</name>
  <value>lytfly</value>
  <description>Username to use against thrift client</description>
</property>
<property>
  <name>hive.server2.thrift.client.password</name>
  <value>199000</value>
  <description>Password to use against thrift client</description>
</property>

確保添加的用戶lytfly對HDFS文件系統/tmp/hive有權限，否會報以下錯誤：

java.lang.RuntimeException: Error applying authorization policy on hive configuration: The dir: /tmp/hive on HDFS should be writable. Current permissions are: rwx------

解決方案：https://my.oschina.net/liuyuantao/blog/5276881

在beeline進行連接時，如果出現以下問題

Error: Could not open client transport with JDBC Uri: jdbc:hive2://node101:10000/default: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.eption(org.apache.hadoop.security.authorize.AuthorizationException): User: lytfly is not allowed to impersonate lytfly (state=08S01,code=0)

這是因爲在hadoop的core-site.xml缺少了以下配置：

<property>
	<name>hadoop.proxyuser.lytfly.groups</name>
	<value>*</value>
</property>
<property>
	<name>hadoop.proxyuser.lytfly.hosts</name>
	<value>*</value>
</property>

重啓Hadoop集羣，重啓Hive的HiveMetastore和HiveServer2即可。