Nodes Info · Elasticsearch 5.4 中文文档

# Nodes Info 原文链接 : [https://www.elastic.co/guide/en/elasticsearch/reference/5.0/cluster-nodes-info.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/cluster-nodes-info.html) 译文链接 : [http://www.apache.wiki/display/Elasticsearch/Nodes+Info](http://www.apache.wiki/display/Elasticsearch/Nodes+Info) 贡献者 : [那伊抹微笑](/display/~wangyangting) **cluster nodes info**（集群节点信息）**API** 可以获取集群中一个或多个节点的信息。 ``` curl -XGET 'http://localhost:9200/_nodes' curl -XGET 'http://localhost:9200/_nodes/nodeId1,nodeId2' ``` 第一个命令获取了集群中所有节点的统计信息。第二个只选择获取了 **nodeId1** 和 **nodeId2** 的节点的统计信息。所有节点选择的选项在[这里](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/cluster.html#cluster-nodes)有更详细的说明。默认情况下，它只节点所有属性和核心配置 : | 属性/配置 | 描述 | | --- | --- | | build_hash | Short hash of the last git commit in this release. | | host | The node’s host name. | | http_address | Host and port where primary HTTP connections are accepted. | | ip | The node’s IP address. | | name | The node’s name. | | total_indexing_buffer | Total heap allowed to be used to hold recently indexed documents before they must be written to disk. This size is a shared pool across all shards on this node, and is controlled by [Indexing Buffer settings](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/indexing-buffer.html "Indexing Buffer"). | | total_indexing_buffer_in_bytes | Same as `total_indexing_buffer`, but expressed in bytes. | | transport_address | Host and port where transport HTTP connections are accepted. | | version | Elasticsearch version running on this node. | 它也可以只获取 `**settings**，``**os**，``**process**，``**jvm**，``**thread_pool**，``**transport**，``**http**，``**plugins**，`**`ingest`**和 `**indices**的信息。` ``` curl -XGET 'http://localhost:9200/_nodes/process' curl -XGET 'http://localhost:9200/_nodes/_all/process' curl -XGET 'http://localhost:9200/_nodes/nodeId1,nodeId2/jvm,process' # same as above curl -XGET 'http://localhost:9200/_nodes/nodeId1,nodeId2/info/jvm,process' curl -XGET 'http://localhost:9200/_nodes/nodeId1,nodeId2/_all ``` 可以设置 **_all** 标记以返回所有的信息 - 或者您也可以简单的忽略它。 ## Operating System information（操作系统信息）可以设置 **os** 标记以获取与操作系统有关的信息 : | 标记 | 描述 | | --- | --- | | os.refresh_interval_in_millis | Refresh interval for the OS statistics | | os.name | Name of the operating system (ex: Linux, Windows, Mac OS X) | | os.arch | Name of the JVM architecture (ex: amd64, x86) | | os.version | Version of the operating system | | os.available_processors | Number of processors available to the Java virtual machine | | os.allocated_processors | The number of processors actually used to calculate thread pool size. This number can be set with the `processors` setting of a node and defaults to the number of processors reported by the OS. In both cases this number will never be larger than 32. | ## Process information（进程信息）可以设置 **process **标记以获取与当前正在运行的进程的有关的信息 : | 标记 | 描述 | | --- | --- | | process.refresh_interval_in_millis | Refresh interval for the process statistics | | process.id | Process identifier (PID) | | process.mlockall | Indicates if the process address space has been successfully locked in memory | ## Plugins information（插件信息） **`plugins`**- 如果被设置，那么结果将包含关于每一个节点已加载的插件的详细信息 : * **`name`**: plugin name * **`description`**: plugin description if any * **`site`**: `true` if the plugin is a site plugin * **`jvm`**: `true` if the plugin is a plugin running in the JVM * **`url`**: URL if the plugin is a site plugin 其结果看起来和下面相似 : ``` { "cluster_name" : "test-cluster-MacBook-Air-de-David.local", "nodes" : { "hJLXmY_NTrCytiIMbX4_1g" : { "name" : "node4", "transport_address" : "inet[/172.18.58.139:9303]", "hostname" : "MacBook-Air-de-David.local", "version" : "0.90.0.Beta2-SNAPSHOT", "http_address" : "inet[/172.18.58.139:9203]", "plugins" : [ { "name" : "test-plugin", "description" : "test-plugin description", "site" : true, "jvm" : false }, { "name" : "test-no-version-plugin", "description" : "test-no-version-plugin description", "site" : true, "jvm" : false }, { "name" : "dummy", "description" : "No description found for dummy.", "url" : "/_plugin/dummy/", "site" : false, "jvm" : true } ] } } } ``` ## Ingest information（摄取数据信息） **ingest** - 如果被设置，那么结果将包含关于每一个节点可用的处理器的详细信息 : * **`type`**: the processor type 其结果看起来和下面相似 : ``` { "cluster_name": "elasticsearch", "nodes": { "O70_wBv6S9aPPcAKdSUBtw": { "ingest": { "processors": [ { "type": "date" }, { "type": "uppercase" }, { "type": "set" }, { "type": "lowercase" }, { "type": "gsub" }, { "type": "convert" }, { "type": "remove" }, { "type": "fail" }, { "type": "foreach" }, { "type": "split" }, { "type": "trim" }, { "type": "rename" }, { "type": "join" }, { "type": "append" } ] } } } } ```