zookeeper 异常 ：stat is not executed because it is not in the whitelist. Connection closed b

1 .问题 

　　1.启动 zookeeper 后 用指令：  telnet 127.0.0.1 2181 连接 提示输入指令 :stat 后报错，然后关闭连接

　　　　

2.问题解决：

　　修改启动指令 zkServer.sh ，往里面添加 ：ZOOMAIN="-Dzookeeper.4lw.commands.whitelist=* ${ZOOMAIN}"

　　步骤 ：

　　　　1.cd  apache-zookeeper-3.5.5-bin 

　　　　2. vim vim  bin/zkServer.sh

　　　　3.修改 ，添加：ZOOMAIN="-Dzookeeper.4lw.commands.whitelist=* ${ZOOMAIN}" ，保存退出

　　　　

      JMXLOG4J=true
    fi
    echo "ZooKeeper remote JMX Port set to $JMXPORT" >&2
    echo "ZooKeeper remote JMX authenticate set to $JMXAUTH" >&2
    echo "ZooKeeper remote JMX ssl set to $JMXSSL" >&2
    echo "ZooKeeper remote JMX log4j set to $JMXLOG4J" >&2
    ZOOMAIN="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=$JMXPORT -Dcom.sun.management.jmxremote.authenticate=$JMXAUTH -Dcom.sun.management.jmxremote.ssl=$JMXSSL -Dzookeeper.jmx.log4j.disable=$JMXLOG4J org.apache.zookeeper.server.quorum.QuorumPeerMain"
  fi
else
    echo "JMX disabled by user request" >&2
    ZOOMAIN="org.apache.zookeeper.server.quorum.QuorumPeerMain"
fi
ZOOMAIN="-Dzookeeper.4lw.commands.whitelist=* ${ZOOMAIN}"
if [ "x$SERVER_JVMFLAGS" != "x" ]
then
    JVMFLAGS="$SERVER_JVMFLAGS $JVMFLAGS"
fi

if [ "x$2" != "x" ]
then
    ZOOCFG="$ZOOCFGDIR/$2"
fi

　　4.重启： bin/zkServer.sh start

参考文章 ：https://blog.csdn.net/x763795151/article/details/80599498