1.搭建监控中心，连接zookeeper失败

  • dubbo-admin-server错误日志

    1. org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
    2.       at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:225)
    3.       at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:94)
    4.       at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:117)
    5.       at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:835)
    6.       at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:809)
    7.       at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:64)
    8.       at org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:267)
    9.       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    10.       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    11.       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    12.       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    13.       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    14.       at java.lang.Thread.run(Thread.java:748)

  • zookeeper日志

    1. 2020-08-11 10:50:13,475 [myid:] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@383] - 
    2.   Exception causing close of session 0x1000004ec640000: 远程主机强迫关闭了一个现有的连 接。
    3. 2020-08-11 10:50:13,476 [myid:] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1056] - 
    4.   Closed socket connection for client /127.0.0.1:49998 which had sessionid 0x1000004ec640000

  • 解决方案

    一、修改客户端连接数。

二、修改zookeeper的配置文件zoo.cfg，添加参数：maxClientCnxns=200。