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我有两台服务器，一台运行 apache zookeeper，一台运行 Solr。启动 zookeeper 时，我可以在服务器一（通过 bin/zkCli.sh）上连接到它，但不能通过带有 solr 的服务器二。Zookeeper 是通过 启动的supervisor，但我也尝试过在bind/zkServer.sh没有改进的情况下启动它。在查看 tomcat 日志（Solr 正在登录）时，我得到：

WARNING: Overseer cannot talk to ZK
Jun 04, 2013 3:26:52 PM org.apache.solr.cloud.Overseer$ClusterStateUpdater amILeader
WARNING:
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
        at org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
        at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
        at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151)
        at org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:253)
        at org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:250)
        at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:65)
        at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:250)
        at org.apache.solr.cloud.Overseer$ClusterStateUpdater.amILeader(Overseer.java:199)
        at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:122)
        at java.lang.Thread.run(Thread.java:722)

...


Jun 04, 2013 3:31:04 PM org.apache.zookeeper.ClientCnxn$SendThread logStartConnect
INFO: Opening socket connection to server XXX.XXX.XXX.XXX/XXX.XXX.XXX.XXX:2181. Will not attempt to authenticate using SASL (unknown error)
Jun 04, 2013 3:31:04 PM org.apache.zookeeper.ClientCnxn$SendThread run
INFO: Client session timed out, have not heard from server in 46974ms for sessionid 0x13f0f5a570c0006, closing socket connection and attempting reconnect
Jun 04, 2013 3:31:05 PM org.apache.zookeeper.ClientCnxn$SendThread logStartConnect
INFO: Opening socket connection to server XXX.XXX.XXX.XXXXXX.XXX.XXX.XXX.75:2181. Will not attempt to authenticate using SASL (unknown error)
Jun 04, 2013 3:32:01 PM org.apache.zookeeper.ClientCnxn$SendThread run
INFO: Client session timed out, have not heard from server in 56627ms for sessionid 0x13f0f5a570c0006, closing socket connection and attempting reconnect

如何设置zookeeper，使其可以被服务器2上的solr访问？

附加信息：netstat -l在服务器一上使用，我得到以下信息：

tcp6       0      0 [::]:2181               [::]:*                  LISTEN

即它只监听tcp6，而不是tcp。

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1 回答 1

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检查 Zookeeper 服务器上的防火墙配置，确保端口 2181、2888 和 3888 都打开。2181 是客户端通信端口，2888 和 3888 用于 zookeeper 集群通信（如果你决定在一个 ensemble 中运行 zookeeper）。

于 2013-11-21T21:43:36.463 回答