- elasticsearch/
elasticsearch 如何检查Elasticsearch群集运行状况？
elasticsearch 如何检查Elasticsearch群集运行状况？
我试着通过电话查一下
curl -XGET 'http://localhost:9200/_cluster/health'
curl -XGET 'http://localhost:9200/_cat/indices?v'
与上述行为相同 要检查elasticsearch群集运行状况，需要使用
curl localhost:9200/_cat/health
sudo$ES_HOME/bin/plugin-i mobz/elasticsearch headlocalhost:9200/\u plugin/head/您可以使用（CURL）和elasticsearch提供的群集API检查elasticsearch群集运行状况：
$ curl -XGET 'localhost:9200/_cluster/health?pretty'
{
"cluster_name" : "xxxxxxxx",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 2,
"number_of_data_nodes" : 2,
"active_primary_shards" : 15,
"active_shards" : 12,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0
}
问题：- 有时，Localhost可能无法解析。 因此，它倾向于返回如下所示的输出： #curl-XGET localhost:9200/_cluster/health？pretty
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html><head>
<meta http-equiv="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<title>ERROR: The requested URL could not be retrieved</title>
<style type="text/css"><!--BODY{background-color:#ffffff;font-family:verdana,sans-serif}PRE{font-family:sans-serif}--></style>
</head><body>
<h1>ERROR</h1>
<h2>The requested URL could not be retrieved</h2>
<hr>
<p>The following error was encountered while trying to retrieve the URL: <a href="http://localhost:9200/_cluster/health?">http://localhost:9200/_cluster/health?</a></p>
<blockquote>
<p><b>Connection to 127.0.0.1 failed.</b></p>
</blockquote>
<p>The system returned: <i>(111) Connection refused</i></p>
<p>The remote host or network may be down. Please try the request again.</p>
<p>Your cache administrator is <a href="mailto:root?subject=CacheErrorInfo%20-%20ERR_CONNECT_FAIL&body=CacheHost%3A%20squid2%0D%0AErrPage%3A%20ERR_CONNECT_FAIL%0D%0AErr%3A%20(111)%20Connection%20refused%0D%0ATimeStamp%3A%20Mon,%2017%20Dec%202018%2008%3A07%3A36%20GMT%0D%0A%0D%0AClientIP%3A%20192.168.13.14%0D%0AServerIP%3A%20127.0.0.1%0D%0A%0D%0AHTTP%20Request%3A%0D%0AGET%20%2F_cluster%2Fhealth%3Fpretty%20HTTP%2F1.1%0AUser-Agent%3A%20curl%2F7.29.0%0D%0AHost%3A%20localhost%3A9200%0D%0AAccept%3A%20*%2F*%0D%0AProxy-Connection%3A%20Keep-Alive%0D%0A%0D%0A%0D%0A">root</a>.</p>
<br>
<hr>
<div id="footer">Generated Mon, 17 Dec 2018 08:07:36 GMT by squid2 (squid/3.0.STABLE25)</div>
</body></html>
错误：无法检索请求的URL
错误
无法检索请求的URL
尝试检索URL时遇到以下错误：
连接到127.0.0.1失败
系统返回：（111）连接被拒绝
远程主机或网络可能已关闭。请重试该请求
您的缓存管理员是
squid2于2018年12月17日星期一08:07:36 GMT生成（squid/3.0.STABLE25）
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html><head>
<meta http-equiv="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<title>ERROR: The requested URL could not be retrieved</title>
<style type="text/css"><!--BODY{background-color:#ffffff;font-family:verdana,sans-serif}PRE{font-family:sans-serif}--></style>
</head><body>
<h1>ERROR</h1>
<h2>The requested URL could not be retrieved</h2>
<hr>
<p>The following error was encountered while trying to retrieve the URL: <a href="http://localhost:9200/_cat/indices">http://localhost:9200/_cat/indices</a></p>
<blockquote>
<p><b>Connection to 127.0.0.1 failed.</b></p>
</blockquote>
<p>The system returned: <i>(111) Connection refused</i></p>
<p>The remote host or network may be down. Please try the request again.</p>
<p>Your cache administrator is <a href="mailto:root?subject=CacheErrorInfo%20-%20ERR_CONNECT_FAIL&body=CacheHost%3A%20squid2%0D%0AErrPage%3A%20ERR_CONNECT_FAIL%0D%0AErr%3A%20(111)%20Connection%20refused%0D%0ATimeStamp%3A%20Mon,%2017%20Dec%202018%2008%3A10%3A09%20GMT%0D%0A%0D%0AClientIP%3A%20192.168.13.14%0D%0AServerIP%3A%20127.0.0.1%0D%0A%0D%0AHTTP%20Request%3A%0D%0AGET%20%2F_cat%2Findices%20HTTP%2F1.1%0AUser-Agent%3A%20curl%2F7.29.0%0D%0AHost%3A%20localhost%3A9200%0D%0AAccept%3A%20*%2F*%0D%0AProxy-Connection%3A%20Keep-Alive%0D%0A%0D%0A%0D%0A">root</a>.</p>
<br>
<hr>
<div id="footer">Generated Mon, 17 Dec 2018 08:10:09 GMT by squid2 (squid/3.0.STABLE25)</div>
</body></html>
错误：无法检索请求的URL
错误
无法检索请求的URL
尝试检索URL时遇到以下错误：
连接到127.0.0.1失败
系统返回：（111）连接被拒绝
远程主机或网络可能已关闭。请重试该请求
您的缓存管理员是
squid2于2018年12月17日星期一08:10:09 GMT生成（squid/3.0.STABLE25）
因此，在用部署了ElasticSearch的本地ip替换本地主机后，它工作得很好。集群/healthAPI可以做的远远超过大多数人看到的典型输出：
$ curl -XGET 'localhost:9200/_cluster/health?pretty'
API还具有多种
等待*超时后返回，但Kibana是：
Kibana=>DevTools=>Console：
GET /_cluster/health
您的群集似乎已死亡？elasticsearch真的在运行吗？是的，curl-XGET和curl-XGET工作得很好。在我评论了#network.publish_host:localhost和#network.host:localhost之后，我发现它工作得很好。Wtf？您是否从默认设置更改了这些设置？如果您阅读了关于这些设置的文档（），那么您必须指定可解析的主机名或地址localhost
两者都不是。感谢URL。这确实有效，但Kibana如何自动连接到ES？@HarishNarayanan，它不是自动的-它是默认的或通过配置。Kibana只是将那些GET/_cluster/health
请求从UI附加到基本URL（例如http://localhost:9200
）它用于连接Elasticsearch。使用Kibana的要点是，您甚至可能无法通过网络访问Elasticsearch（例如，未从集群中公开）-您仍然可以执行这些查询，只要您可以访问Kibana。明白@uvsmtid。我查看了config文件夹和相关的yml文件。获得了所需的信息。非常感谢
$ curl -XGET 'localhost:9200/_cluster/health?level=shards&pretty' | head -50
{
"cluster_name" : "rdu-es-01",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 9,
"number_of_data_nodes" : 6,
"active_primary_shards" : 1106,
"active_shards" : 2213,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 100.0,
"indices" : {
"filebeat-6.5.1-2019.06.10" : {
"status" : "green",
"number_of_shards" : 3,
"number_of_replicas" : 1,
"active_primary_shards" : 3,
"active_shards" : 6,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"shards" : {
"0" : {
"status" : "green",
"primary_active" : true,
"active_shards" : 2,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0
},
"1" : {
"status" : "green",
"primary_active" : true,
"active_shards" : 2,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0
},
"2" : {
"status" : "green",
"primary_active" : true,
"active_shards" : 2,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0
GET /_cluster/health