Elasticsearch 抛出异常:NoNodeAvailableException发生:无可用节点 [英] Elasticsearch throwing the exception: NoNodeAvailableException occured : No node available

问题描述

我决定在一个简单的待办事项列表应用程序上尝试第一次使用 elasticsearch.我关注了这个视频 要使用该模块并在模块本身中不做任何修改，我所做的就是创建应用程序并在控制器中添加类 search.java.

I'm decided to try my first use for elasticsearch on a simple to-do list application. I followed this video to use the module and modified nothing in the module itself all what i did was creating the application and adding the class search.java in the controllers.

Execution exception
NoNodeAvailableException occured : No node available

In {module:elasticsearch-0.4}/app/controllers/elasticsearch/ElasticSearchController.java (around line 367)

363:
            // FIXME Currently we ignore the orderBy and order fields
364:
            query.from((page - 1) * getPageSize()).size(getPageSize());
365:
            query.hydrate(true);
366:

367:
            return query.fetch();
368:
        }

推荐答案

我遇到了同样的问题，我做的是:

I had the same problem, what I did was:

1.检查节点是否打开了正确的端口:

1.Check if the nodes have the correct port open with:

telnet [ip address] 9300
Trying [ip address]
Connected to mynode1 ([ip address]).
Escape character is '^]'.
telnet> quit
Connection closed.    

2.使用 telnet 检查一切是否正常 =):

2.Check that everything is ok with telnet =):

$ telnet [ip address] 9400
Trying [ip address]...
telnet: Unable to connect to remote host: Connection refused

3.确保您拥有正确版本的elasticsearch！

3.Make sure you have the correct version of elasticsearch!

在我使用的 elasticsearch 插件中，使用了 elasticsearch 0.19.10.当我在我的服务器上安装 elasticsearch 时，我不小心使用了 0.20.1，这导致了:NoNodeAvailableException发生:无可用节点异常.

In the elasticsearch plugin that I'm using elastisearch 0.19.10 is used. When I installed elasticsearch on my server I accidentally used 0.20.1 which caused the: NoNodeAvailableException occured : No node available exception.

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