Hive 锁 lock

<property>
    <name>hive.zookeeper.quorum</name>
    <value>zk1,zk2,zk3</value>
  </property>
<property>
    <name>hive.support.concurrency</name>
    <value>true</value>
</property>

hive> lock table t1 exclusive;

hive> SELECT COUNT(*) FROM people;
conflicting lock present for default@people mode SHARED
FAILED: Error in acquiring locks: locks on the underlying objects
cannot be acquired. retry after some time

hive> unlock table t1;