Apache zookeeper 动物园管理员节点计数器？
我有一个ZooKeeper集群，只有2个节点，每个zoo.conf都有以下内容Apache zookeeper 动物园管理员节点计数器？,apache-zookeeper,Apache Zookeeper,我有一个ZooKeeper集群，只有2个节点，每个zoo.conf都有以下内容 # Servers server.1=10.138.0.8:2888:3888 server.2=10.138.0.9:2888:3888 两个配置中都有相同的两行 [root@zk1-prod supervisor.d]# echo mntr | nc 10.138.0.8 2181 zk_version 3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f,
# Servers
server.1=10.138.0.8:2888:3888
server.2=10.138.0.9:2888:3888
[root@zk1-prod supervisor.d]# echo mntr | nc 10.138.0.8 2181
zk_version 3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017 10:13 GMT
zk_avg_latency 0
zk_max_latency 0
zk_min_latency 0
zk_packets_received 5
zk_packets_sent 4
zk_num_alive_connections 1
zk_outstanding_requests 0
zk_server_state follower
zk_znode_count 4
zk_watch_count 0
zk_ephemerals_count 0
zk_approximate_data_size 27
zk_open_file_descriptor_count 28
zk_max_file_descriptor_count 4096
[root@zk1-prod supervisor.d]# echo mntr | nc 10.138.0.9 2181
zk_version 3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017 10:13 GMT
zk_avg_latency 0
zk_max_latency 0
zk_min_latency 0
zk_packets_received 3
zk_packets_sent 2
zk_num_alive_connections 1
zk_outstanding_requests 0
zk_server_state leader
zk_znode_count 4
zk_watch_count 0
zk_ephemerals_count 0
zk_approximate_data_size 27
zk_open_file_descriptor_count 29
zk_max_file_descriptor_count 4096
zk_followers 1
zk_synced_followers 1
zk_pending_syncs 0
那么为什么zk_znode_count==4？znode不是Zookeeper服务器 摘自《Hadoop权威指南》： Zookeeper没有文件和目录，而是一个统一的概念 一个称为znode的节点，既充当数据容器（如 文件）和其他znode的容器（如目录）
zk_znode_count