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配置Hiveserver2的访问协议，http或者tcp
<property>
<name>hive.server2.transport.mode</name>
<value>binary</value>
<description>Server transport mode. "binary" or "http".</description>
</property>
对应http协议的访问端口
<property>
<name>hive.server2.thrift.http.port</name>
<value>10001</value>
<description>Port number when in HTTP mode.</description>
</property>
对应tcp协议的访问端口
<property>
<name>hive.server2.thrift.port</name>
<value>10001</value>
<description>Port number when in TCP mode.</description>
</property>
对应在http协议下线程池的线程数
<property>
<name>hive.server2.thrift.http.min.worker.threads</name>
<value>5</value>
<description>Minimum number of worker threads when in HTTP mode.</description>
</property>
<property>
<name>hive.server2.thrift.http.max.worker.threads</name>
<value>500</value>
<description>Maximum number of worker threads when in HTTP mode.</description>
</property>
对应在tcp协议下的线程池的线程数：
<property>
<name>hive.server2.thrift.min.worker.threads</name>
<value>5</value>
<description>Minimum number of worker threads when in TCP mode.</description>
</property>
<property>
<name>hive.server2.thrift.max.worker.threads</name>
<value>500</value>
<description>Maximum number of worker threads when in TCP mode.</description>
</property>
配置metastore server的地址
<property>
<name>hive.metastore.uris</name>
<value></value>
<description>Thrift URI for the remote metastore. Used by metastore client to connect to remote metastore.</description>
</property>
配置异步线程池的线程数
<property>
<name>hive.server2.async.exec.threads</name>
<value>100</value>
<description>Number of threads in the async thread pool for HiveServer2</description>
</property>
配置异步线程结束的超时时间(超过这个时间HS会退出)：
<property>
<name>hive.server2.async.exec.shutdown.timeout</name>
<value>10</value>
<description>Time (in seconds) for which HiveServer2 shutdown will wait for async
threads to terminate</description>
</property>
配置异步线程的等待超时时间（超过这个值线程会被回收）
<property>
<name>hive.server2.async.exec.keepalive.time</name>
<value>10</value>
<description>Time (in seconds) that an idle HiveServer2 async thread (from the thread pool) will wait
for a new task to arrive before terminating</description>
</property>
<property>
<name>hive.server2.long.polling.timeout</name>
<value>5000L</value>
<description>Time in milliseconds that HiveServer2 will wait, before responding to asynchronous calls that use long polling</description>
</property>
配置请求缓冲队列的长度
<property>
<name>hive.server2.async.exec.wait.queue.size</name>
<value>100</value>
<description>Size of the wait queue for async thread pool in HiveServer2.
After hitting this limit, the async thread pool will reject new requests.</description>
</property>
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可以看到HS的进程和MetaStore的进程是在一个虚拟机里面的，而且从图中可以看出，一个HS服务同时只能提供一个访问连接。
HS2的主要改进是把MetaStoreServer从Hiveserver中剥离出来了，形成一个单独的进程运行，而且hiveserver和metastore server可以同时服务 于多个客户端（Beeline CLI,Hive CLI,HCatalog等）。