solr 独立zookeeper集群 SEVERE: null:java.lang.IllegalArgumentException: port out of range:-1 异常处理-优快云博客

当遇到Solr启动报错'port out of range:-1'时，问题根源在于-DzkRun参数导致，该参数用于启动内部嵌入Zookeeper。在使用独立Zookeeper集群时，不应包含此参数。通过源码分析，可以发现该错误是由于尝试从-DzkRun中获取客户端端口而引发。解决方案是移除-DzkRun参数，正确配置-DzkHost。

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异常信息如下：

SEVERE: null:java.lang.IllegalArgumentException: port out of range:-1
at java.net.InetSocketAddress.<init>(InetSocketAddress.java:83)
at java.net.InetSocketAddress.<init>(InetSocketAddress.java:63)
at
org.apache.solr.cloud.SolrZkServerProps.setClientPort(SolrZkServer.java:315)
at
org.apache.solr.cloud.SolrZkServerProps.getMySeverId(SolrZkServer.java:278)
at
org.apache.solr.cloud.SolrZkServerProps.parseProperties(SolrZkServer.java:453)
at
org.apache.solr.cloud.SolrZkServer.parseConfig(SolrZkServer.java:90)
at
org.apache.solr.core.CoreContainer.initZooKeeper(CoreContainer.java:208)

按照solr官网邮件中的解决方式是无法实现的，错误配置如下：

-DzkRun -DzkHost=nodeA:9983,nodeB:9983,nodeC:9983,nodeD:9983/solrroot -DnumShards=2 -Dbootstrap_confdir=./solr/collection1/conf -Dcollection.configName=MyConfig

错误根本原因不是所谓独立zookeeper集群造成，而是因为带有-DzkRun参数造成，该参数是用来启动内部嵌入zookeeper的，外部集群不需要加入该参数。

通过源码可看出该问题出现原因：

1，注入zookeeper集群信息源码如下：

public static void injectServers(Properties props, String zkRun, String zkHost) {

    // if clientPort not already set, use zkRun
    if (zkRun != null && props.getProperty("clientPort")==null) {
      int portIdx = zkRun.lastIndexOf(':');
      if (portIdx > 0) {
        String portStr = zkRun.substring(portIdx+1);
        props.setProperty("clientPort", portStr);
      }
    }

    boolean hasServers = hasServers(props);

    if (!hasServers && zkHost != null) {
      int alg = Integer.parseInt(props.getProperty("electionAlg","3").trim());
      String[] hosts = zkHost.split(",");
      int serverNum = 0;
      for (String hostAndPort : hosts) {
        hostAndPort = hostAndPort.trim();
        int portIdx = hostAndPort.lastIndexOf(':');
        String clientPortStr = hostAndPort.substring(portIdx+1);
        int clientPort = Integer.parseInt(clientPortStr);
        String host = hostAndPort.substring(0,portIdx);

        String serverStr = host + ':' + (clientPort+1);
        // zk leader election algorithms other than 0 need an extra port for leader election.
        if (alg != 0) {
          serverStr = serverStr + ':' + (clientPort+2);
        }

        props.setProperty("server."+serverNum, serverStr);
        serverNum++;
      }
    }
}