错误:无法成功连接到ElasticSearch。检查您的群集状态是否为红色，以及ElasticSearch是否正常运行

Question

我已经参考了Setup a graylog2 server with elasticsearch in a vagrant machine，并且我有正确的ElasticSearch版本。

我还根据tutorial为Graylog2和ElasticSearch添加了正确的选项。

ERROR: Could not successfully connect to ElasticSearch. Check that your cluster state is not RED and that ElasticSearch is running properly.

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* Official documentation: http://support.torch.sh/help/kb
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But we also got some specific help pages that might help you in this case:

* http://support.torch.sh/help/kb/graylog2-server/configuring-and-tuning-elasticsearch-for-graylog2-v0200

Terminating. :(

当我运行以下命令时，仍然会遇到这个错误：

sudo java -jar /opt/graylog2-server/graylog2-server.jar --debug

我还检查了ElasticSearch是否正常运行-

central@central:~$ curl -XGET 'http://127.0.0.1:9200/_cluster/health?pretty=true'
{
  "cluster_name" : "graylog2",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 1,
  "number_of_data_nodes" : 1,
  "active_primary_shards" : 0,
  "active_shards" : 0,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0
}

对我应该做什么有什么建议吗？我不明白问题出在哪里。

Answer 1

我让安装程序运行以下附加功能-

# /etc/elasticsearch/elasticsearch.yml
cluster.name: graylog2
node.master: true
node.data: true
bootstrap.mlockall: true
ES_HEAP_SIZE: 8192 (@ 16GB memory)
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicasts.hosts: [“127.0.0.1”, "SERVER IP"]

# /etc/graylog2.conf
elasticsearch_discovery_zen_ping_multicast_enabled = false
elasticsearch_discovery_zen_ping_unicast_hosts = IP_ARR:9300

Answer 2

我不确定为什么A23的问题被否决了。我也无法运行graylog2-server。关键似乎是将elasticsearch_discovery_zen_ping_unicast_hosts设置为有效的IP集。

当然，在graylog文档中没有提到这是一个应该在graylog2.conf文件中更改的设置：

http://www.graylog2.org/resources/documentation/setup/server

这有点烦人。