从hbase thrift服务器传输数据时，zookeeper连接被挂起了吗？

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在访问从hbase thrift服务器到客户端连接的记录期间，zookeeper连接被挂起。重新启动连接后，他们继续访问记录。在从hbase thrift服务器访问数据期间，zookeeper连接被挂起的可能原因是什么？