[root@localhost bin]# ./zkCli.shConnecting to localhost:21812021-10-22 05:59:14,768 [myid:] - INFO [main:Environment@98] - Client environment:zookeeper.version=3.6.0--b4c89dc7f6083829e18fae6e446907ae0b1f22d7, built on 02/25/2020 14:38 GMT2021-10-22 05:59:14,776 [myid:] - INFO [main:Environment@98] - Client environment:host.name=localhost2021-10-22 05:59:14,776 [myid:] - INFO [main:Environment@98] - Client environment:java.version=1.8.0_2212021-10-22 05:59:14,787 [myid:] - INFO [main:Environment@98] - Client environment:java.vendor=Oracle Corporation2021-10-22 05:59:14,787 [myid:] - INFO [main:Environment@98] - Client environment:java.home=/usr/local/jdk/jdk/jre2021-10-22 05:59:14,788 [myid:] - INFO [main:Environment@98] - Client environment:java.class.path=/usr/local/zookeepercluster/zookeeper01/bin/../zookeeper-server/target/classes:/usr/local/zookeepercluster/zookeeper01/bin/../build/classes:/usr/local/zookeepercluster/zookeeper01/bin/../zookeeper-server/target/lib/*.jar:/usr/local/zookeepercluster/zookeeper01/bin/../build/lib/*.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/zookeeper-prometheus-metrics-3.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/zookeeper-jute-3.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/zookeeper-3.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/snappy-java-1.1.7.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/slf4j-log4j12-1.7.25.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/slf4j-api-1.7.25.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/simpleclient_servlet-0.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/simpleclient_hotspot-0.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/simpleclient_common-0.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/simpleclient-0.6.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-transport-native-unix-common-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-transport-native-epoll-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-transport-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-resolver-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-handler-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-common-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-codec-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/netty-buffer-4.1.45.Final.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/metrics-core-3.2.5.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/log4j-1.2.17.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/json-simple-1.1.1.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jline-2.11.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-util-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-servlet-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-server-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-security-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-io-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jetty-http-9.4.24.v20191120.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/javax.servlet-api-3.1.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jackson-databind-2.9.10.3.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jackson-core-2.9.10.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/jackson-annotations-2.9.10.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/commons-lang-2.6.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/commons-cli-1.2.jar:/usr/local/zookeepercluster/zookeeper01/bin/../lib/audience-annotations-0.5.0.jar:/usr/local/zookeepercluster/zookeeper01/bin/../zookeeper-*.jar:/usr/local/zookeepercluster/zookeeper01/bin/../zookeeper-server/src/main/resources/lib/*.jar:/usr/local/zookeepercluster/zookeeper01/bin/../conf:.:/usr/local/jdk/jdk/lib/dt.jar:/usr/local/jdk/jdk/lib/tools.jar2021-10-22 05:59:14,788 [myid:] - INFO [main:Environment@98] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib2021-10-22 05:59:14,788 [myid:] - INFO [main:Environment@98] - Client environment:java.io.tmpdir=/tmp2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:java.compiler=2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:os.name=Linux2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:os.arch=amd642021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:os.version=4.18.0-80.el8.x86_642021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:user.name=root2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:user.home=/root2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:user.dir=/usr/local/zookeepercluster/zookeeper01/bin2021-10-22 05:59:14,789 [myid:] - INFO [main:Environment@98] - Client environment:os.memory.free=23MB2021-10-22 05:59:14,791 [myid:] - INFO [main:Environment@98] - Client environment:os.memory.max=247MB2021-10-22 05:59:14,791 [myid:] - INFO [main:Environment@98] - Client environment:os.memory.total=29MB2021-10-22 05:59:14,835 [myid:] - INFO [main:ZooKeeper@1005] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@182decdb2021-10-22 05:59:14,861 [myid:] - INFO [main:X509Util@77] - Setting -D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated TLS renegotiation2021-10-22 05:59:14,894 [myid:] - INFO [main:ClientCnxnSocket@239] - jute.maxbuffer value is 1048575 Bytes2021-10-22 05:59:14,911 [myid:] - INFO [main:ClientCnxn@1703] - zookeeper.request.timeout value is 0. feature enabled=falseWelcome to ZooKeeper!2021-10-22 05:59:14,960 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1154] - Opening socket connection to server localhost/127.0.0.1:2181.2021-10-22 05:59:14,960 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1156] - SASL config status: Will not attempt to authenticate using SASL (unknown error)JLine support is enabled2021-10-22 05:59:15,292 [myid:localhost:2181] - WARN [main-SendThread(localhost:2181):ClientCnxn$SendThread@1272] - Session 0x0 for sever localhost/127.0.0.1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException.java.net.ConnectException: 拒绝连接 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:342) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1262)[zk: localhost:2181(CONNECTING) 0] 2021-10-22 05:59:16,447 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1154] - Opening socket connection to server localhost/127.0.0.1:2181.2021-10-22 05:59:16,448 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1156] - SASL config status: Will not attempt to authenticate using SASL (unknown error)2021-10-22 05:59:16,451 [myid:localhost:2181] - WARN [main-SendThread(localhost:2181):ClientCnxn$SendThread@1272] - Session 0x0 for sever localhost/127.0.0.1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException.java.net.ConnectException: 拒绝连接 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:342) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1262)2021-10-22 05:59:17,554 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1154] - Opening socket connection to server localhost/127.0.0.1:2181.2021-10-22 05:59:17,555 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1156] - SASL config status: Will not attempt to authenticate using SASL (unknown error)2021-10-22 05:59:17,556 [myid:localhost:2181] - WARN [main-SendThread(localhost:2181):ClientCnxn$SendThread@1272] - Session 0x0 for sever localhost/127.0.0.1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException.java.net.ConnectException: 拒绝连接 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:342) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1262)2021-10-22 05:59:18,658 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1154] - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:2181.2021-10-22 05:59:18,659 [myid:localhost:2181] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1156] - SASL config status: Will not attempt to authenticate using SASL (unknown error)2021-10-22 05:59:18,659 [myid:localhost:2181] - WARN [main-SendThread(localhost:2181):ClientCnxn$SendThread@1272] - Session 0x0 for sever localhost/0:0:0:0:0:0:0:1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException.java.net.ConnectException: 拒绝连接 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:342) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1262)麻烦老师看一下这个是什么错误，启动zookeeper报这个错误
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