mirror of
https://github.com/honeymoose/OpenSearch.git
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d99d0fa669
This commit adds the distribution type to the startup scripts so that we can discern from log output and the main response the type of the distribution (deb/rpm/tar/zip).
310 lines
8.9 KiB
Plaintext
310 lines
8.9 KiB
Plaintext
[[cluster-nodes-info]]
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== Nodes Info
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The cluster nodes info API allows to retrieve one or more (or all) of
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the cluster nodes information.
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[source,js]
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--------------------------------------------------
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GET /_nodes
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GET /_nodes/nodeId1,nodeId2
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--------------------------------------------------
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// CONSOLE
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The first command retrieves information of all the nodes in the cluster.
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The second command selectively retrieves nodes information of only
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`nodeId1` and `nodeId2`. All the nodes selective options are explained
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<<cluster-nodes,here>>.
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By default, it just returns all attributes and core settings for a node:
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[float]
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[[core-info]]
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`build_hash`::
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Short hash of the last git commit in this release.
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`host`::
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The node's host name.
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`ip`::
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The node's IP address.
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`name`::
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The node's name.
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`total_indexing_buffer`::
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Total heap allowed to be used to hold recently indexed
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documents before they must be written to disk. This size is
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a shared pool across all shards on this node, and is
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controlled by <<indexing-buffer,Indexing Buffer settings>>.
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`total_indexing_buffer_in_bytes`::
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Same as `total_indexing_buffer`, but expressed in bytes.
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`transport_address`::
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Host and port where transport HTTP connections are accepted.
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`version`::
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Elasticsearch version running on this node.
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It also allows to get only information on `settings`, `os`, `process`, `jvm`,
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`thread_pool`, `transport`, `http`, `plugins`, `ingest` and `indices`:
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[source,js]
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--------------------------------------------------
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# return just process
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GET /_nodes/process
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# same as above
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GET /_nodes/_all/process
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# return just jvm and process of only nodeId1 and nodeId2
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GET /_nodes/nodeId1,nodeId2/jvm,process
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# same as above
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GET /_nodes/nodeId1,nodeId2/info/jvm,process
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# return all the information of only nodeId1 and nodeId2
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GET /_nodes/nodeId1,nodeId2/_all
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--------------------------------------------------
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// CONSOLE
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The `_all` flag can be set to return all the information - or you can simply omit it.
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[float]
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[[os-info]]
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==== Operating System information
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The `os` flag can be set to retrieve information that concern
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the operating system:
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`os.refresh_interval_in_millis`::
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Refresh interval for the OS statistics
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`os.name`::
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Name of the operating system (ex: Linux, Windows, Mac OS X)
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`os.arch`::
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Name of the JVM architecture (ex: amd64, x86)
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`os.version`::
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Version of the operating system
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`os.available_processors`::
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Number of processors available to the Java virtual machine
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`os.allocated_processors`::
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The number of processors actually used to calculate thread pool size. This number can be set
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with the `processors` setting of a node and defaults to the number of processors reported by the OS.
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In both cases this number will never be larger than 32.
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[float]
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[[process-info]]
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==== Process information
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The `process` flag can be set to retrieve information that concern
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the current running process:
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`process.refresh_interval_in_millis`::
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Refresh interval for the process statistics
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`process.id`::
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Process identifier (PID)
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`process.mlockall`::
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Indicates if the process address space has been successfully locked in memory
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[float]
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[[plugins-info]]
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==== Plugins information
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`plugins` - if set, the result will contain details about the installed plugins and modules per node:
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[source,js]
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--------------------------------------------------
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GET /_nodes/plugins
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--------------------------------------------------
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// CONSOLE
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// TEST[setup:node]
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The result will look similar to:
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[source,js]
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--------------------------------------------------
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{
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"_nodes": ...
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"cluster_name": "elasticsearch",
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"nodes": {
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"USpTGYaBSIKbgSUJR2Z9lg": {
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"name": "node-0",
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"transport_address": "192.168.17:9300",
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"host": "node-0.elastic.co",
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"ip": "192.168.17",
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"version": "{version}",
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"build_flavor": "oss",
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"build_type": "zip",
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"build_hash": "587409e",
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"roles": [
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"master",
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"data",
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"ingest"
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],
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"attributes": {},
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"plugins": [
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{
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"name": "analysis-icu",
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"version": "{version}",
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"description": "The ICU Analysis plugin integrates Lucene ICU module into elasticsearch, adding ICU relates analysis components.",
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"classname": "org.elasticsearch.plugin.analysis.icu.AnalysisICUPlugin",
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"has_native_controller": false
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},
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{
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"name": "ingest-geoip",
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"version": "{version}",
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"description": "Ingest processor that uses looksup geo data based on ip adresses using the Maxmind geo database",
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"classname": "org.elasticsearch.ingest.geoip.IngestGeoIpPlugin",
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"has_native_controller": false
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},
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{
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"name": "ingest-user-agent",
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"version": "{version}",
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"description": "Ingest processor that extracts information from a user agent",
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"classname": "org.elasticsearch.ingest.useragent.IngestUserAgentPlugin",
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"has_native_controller": false
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}
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],
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"modules": [
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{
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"name": "lang-painless",
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"version": "{version}",
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"description": "An easy, safe and fast scripting language for Elasticsearch",
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"classname": "org.elasticsearch.painless.PainlessPlugin",
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"has_native_controller": false
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}
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]
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}
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}
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}
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--------------------------------------------------
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// TESTRESPONSE[s/"_nodes": \.\.\./"_nodes": $body.$_path,/]
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// TESTRESPONSE[s/"elasticsearch"/$body.cluster_name/]
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// TESTRESPONSE[s/"USpTGYaBSIKbgSUJR2Z9lg"/\$node_name/]
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// TESTRESPONSE[s/"name": "node-0"/"name": $body.$_path/]
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// TESTRESPONSE[s/"transport_address": "192.168.17:9300"/"transport_address": $body.$_path/]
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// TESTRESPONSE[s/"host": "node-0.elastic.co"/"host": $body.$_path/]
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// TESTRESPONSE[s/"ip": "192.168.17"/"ip": $body.$_path/]
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// TESTRESPONSE[s/"build_hash": "587409e"/"build_hash": $body.$_path/]
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// TESTRESPONSE[s/"roles": \[[^\]]*\]/"roles": $body.$_path/]
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// TESTRESPONSE[s/"attributes": \{[^\}]*\}/"attributes": $body.$_path/]
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// TESTRESPONSE[s/"plugins": \[[^\]]*\]/"plugins": $body.$_path/]
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// TESTRESPONSE[s/"modules": \[[^\]]*\]/"modules": $body.$_path/]
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The following information are available for each plugin and module:
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* `name`: plugin name
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* `version`: version of Elasticsearch the plugin was built for
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* `description`: short description of the plugin's purpose
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* `classname`: fully-qualified class name of the plugin's entry point
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* `has_native_controller`: whether or not the plugin has a native controller process
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[float]
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[[ingest-info]]
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==== Ingest information
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`ingest` - if set, the result will contain details about the available
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processors per node:
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[source,js]
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--------------------------------------------------
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GET /_nodes/ingest
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--------------------------------------------------
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// CONSOLE
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// TEST[setup:node]
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The result will look similar to:
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[source,js]
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--------------------------------------------------
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{
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"_nodes": ...
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"cluster_name": "elasticsearch",
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"nodes": {
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"USpTGYaBSIKbgSUJR2Z9lg": {
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"name": "node-0",
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"transport_address": "192.168.17:9300",
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"host": "node-0.elastic.co",
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"ip": "192.168.17",
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"version": "{version}",
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"build_flavor": "oss",
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"build_type": "zip",
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"build_hash": "587409e",
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"roles": [],
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"attributes": {},
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"ingest": {
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"processors": [
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{
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"type": "date"
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},
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{
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"type": "uppercase"
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},
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{
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"type": "set"
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},
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{
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"type": "lowercase"
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},
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{
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"type": "gsub"
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},
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{
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"type": "convert"
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},
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{
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"type": "remove"
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},
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{
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"type": "fail"
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},
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{
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"type": "foreach"
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},
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{
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"type": "split"
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},
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{
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"type": "trim"
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},
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{
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"type": "rename"
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},
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{
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"type": "join"
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},
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{
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"type": "append"
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}
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]
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}
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}
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}
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}
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--------------------------------------------------
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// TESTRESPONSE[s/"_nodes": \.\.\./"_nodes": $body.$_path,/]
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// TESTRESPONSE[s/"elasticsearch"/$body.cluster_name/]
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// TESTRESPONSE[s/"USpTGYaBSIKbgSUJR2Z9lg"/\$node_name/]
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// TESTRESPONSE[s/"name": "node-0"/"name": $body.$_path/]
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// TESTRESPONSE[s/"transport_address": "192.168.17:9300"/"transport_address": $body.$_path/]
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// TESTRESPONSE[s/"host": "node-0.elastic.co"/"host": $body.$_path/]
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// TESTRESPONSE[s/"ip": "192.168.17"/"ip": $body.$_path/]
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// TESTRESPONSE[s/"build_hash": "587409e"/"build_hash": $body.$_path/]
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// TESTRESPONSE[s/"roles": \[[^\]]*\]/"roles": $body.$_path/]
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// TESTRESPONSE[s/"attributes": \{[^\}]*\}/"attributes": $body.$_path/]
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// TESTRESPONSE[s/"processors": \[[^\]]*\]/"processors": $body.$_path/]
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The following information are available for each ingest processor:
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* `type`: the processor type
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