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312 lines
11 KiB
312 lines
11 KiB
// Copyright 2012-present Oliver Eilhard. All rights reserved. |
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// Use of this source code is governed by a MIT-license. |
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// See http://olivere.mit-license.org/license.txt for details. |
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package elastic |
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import ( |
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"context" |
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"fmt" |
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"net/url" |
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"strings" |
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"time" |
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"gopkg.in/olivere/elastic.v5/uritemplates" |
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) |
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// NodesInfoService allows to retrieve one or more or all of the |
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// cluster nodes information. |
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// It is documented at https://www.elastic.co/guide/en/elasticsearch/reference/5.2/cluster-nodes-info.html. |
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type NodesInfoService struct { |
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client *Client |
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pretty bool |
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nodeId []string |
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metric []string |
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flatSettings *bool |
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human *bool |
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} |
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// NewNodesInfoService creates a new NodesInfoService. |
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func NewNodesInfoService(client *Client) *NodesInfoService { |
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return &NodesInfoService{ |
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client: client, |
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nodeId: []string{"_all"}, |
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metric: []string{"_all"}, |
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} |
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} |
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// NodeId is a list of node IDs or names to limit the returned information. |
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// Use "_local" to return information from the node you're connecting to, |
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// leave empty to get information from all nodes. |
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func (s *NodesInfoService) NodeId(nodeId ...string) *NodesInfoService { |
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s.nodeId = append(s.nodeId, nodeId...) |
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return s |
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} |
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// Metric is a list of metrics you wish returned. Leave empty to return all. |
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// Valid metrics are: settings, os, process, jvm, thread_pool, network, |
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// transport, http, and plugins. |
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func (s *NodesInfoService) Metric(metric ...string) *NodesInfoService { |
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s.metric = append(s.metric, metric...) |
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return s |
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} |
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// FlatSettings returns settings in flat format (default: false). |
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func (s *NodesInfoService) FlatSettings(flatSettings bool) *NodesInfoService { |
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s.flatSettings = &flatSettings |
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return s |
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} |
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// Human indicates whether to return time and byte values in human-readable format. |
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func (s *NodesInfoService) Human(human bool) *NodesInfoService { |
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s.human = &human |
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return s |
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} |
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// Pretty indicates whether to indent the returned JSON. |
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func (s *NodesInfoService) Pretty(pretty bool) *NodesInfoService { |
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s.pretty = pretty |
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return s |
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} |
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// buildURL builds the URL for the operation. |
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func (s *NodesInfoService) buildURL() (string, url.Values, error) { |
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// Build URL |
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path, err := uritemplates.Expand("/_nodes/{node_id}/{metric}", map[string]string{ |
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"node_id": strings.Join(s.nodeId, ","), |
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"metric": strings.Join(s.metric, ","), |
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}) |
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if err != nil { |
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return "", url.Values{}, err |
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} |
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// Add query string parameters |
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params := url.Values{} |
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if s.flatSettings != nil { |
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params.Set("flat_settings", fmt.Sprintf("%v", *s.flatSettings)) |
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} |
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if s.human != nil { |
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params.Set("human", fmt.Sprintf("%v", *s.human)) |
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} |
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if s.pretty { |
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params.Set("pretty", "1") |
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} |
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return path, params, nil |
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} |
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// Validate checks if the operation is valid. |
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func (s *NodesInfoService) Validate() error { |
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return nil |
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} |
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// Do executes the operation. |
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func (s *NodesInfoService) Do(ctx context.Context) (*NodesInfoResponse, error) { |
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// Check pre-conditions |
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if err := s.Validate(); err != nil { |
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return nil, err |
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} |
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// Get URL for request |
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path, params, err := s.buildURL() |
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if err != nil { |
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return nil, err |
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} |
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// Get HTTP response |
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res, err := s.client.PerformRequest(ctx, "GET", path, params, nil) |
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if err != nil { |
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return nil, err |
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} |
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// Return operation response |
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ret := new(NodesInfoResponse) |
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if err := s.client.decoder.Decode(res.Body, ret); err != nil { |
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return nil, err |
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} |
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return ret, nil |
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} |
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// NodesInfoResponse is the response of NodesInfoService.Do. |
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type NodesInfoResponse struct { |
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ClusterName string `json:"cluster_name"` |
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Nodes map[string]*NodesInfoNode `json:"nodes"` |
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} |
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type NodesInfoNode struct { |
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// Name of the node, e.g. "Mister Fear" |
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Name string `json:"name"` |
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// TransportAddress, e.g. "127.0.0.1:9300" |
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TransportAddress string `json:"transport_address"` |
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// Host is the host name, e.g. "macbookair" |
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Host string `json:"host"` |
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// IP is the IP address, e.g. "192.168.1.2" |
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IP string `json:"ip"` |
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// Version is the Elasticsearch version running on the node, e.g. "1.4.3" |
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Version string `json:"version"` |
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// Build is the Elasticsearch build, e.g. "36a29a7" |
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Build string `json:"build"` |
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// HTTPAddress, e.g. "127.0.0.1:9200" |
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HTTPAddress string `json:"http_address"` |
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// HTTPSAddress, e.g. "127.0.0.1:9200" |
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HTTPSAddress string `json:"https_address"` |
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// Roles of the node, e.g. [master, ingest, data] |
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Roles []string `json:"roles"` |
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// Attributes of the node. |
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Attributes map[string]interface{} `json:"attributes"` |
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// Settings of the node, e.g. paths and pidfile. |
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Settings map[string]interface{} `json:"settings"` |
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// OS information, e.g. CPU and memory. |
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OS *NodesInfoNodeOS `json:"os"` |
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// Process information, e.g. max file descriptors. |
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Process *NodesInfoNodeProcess `json:"process"` |
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// JVM information, e.g. VM version. |
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JVM *NodesInfoNodeJVM `json:"jvm"` |
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// ThreadPool information. |
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ThreadPool *NodesInfoNodeThreadPool `json:"thread_pool"` |
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// Network information. |
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Network *NodesInfoNodeNetwork `json:"network"` |
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// Network information. |
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Transport *NodesInfoNodeTransport `json:"transport"` |
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// HTTP information. |
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HTTP *NodesInfoNodeHTTP `json:"http"` |
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// Plugins information. |
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Plugins []*NodesInfoNodePlugin `json:"plugins"` |
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} |
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type NodesInfoNodeOS struct { |
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RefreshInterval string `json:"refresh_interval"` // e.g. 1s |
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RefreshIntervalInMillis int `json:"refresh_interval_in_millis"` // e.g. 1000 |
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AvailableProcessors int `json:"available_processors"` // e.g. 4 |
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// CPU information |
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CPU struct { |
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Vendor string `json:"vendor"` // e.g. Intel |
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Model string `json:"model"` // e.g. iMac15,1 |
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MHz int `json:"mhz"` // e.g. 3500 |
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TotalCores int `json:"total_cores"` // e.g. 4 |
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TotalSockets int `json:"total_sockets"` // e.g. 4 |
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CoresPerSocket int `json:"cores_per_socket"` // e.g. 16 |
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CacheSizeInBytes int `json:"cache_size_in_bytes"` // e.g. 256 |
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} `json:"cpu"` |
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// Mem information |
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Mem struct { |
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Total string `json:"total"` // e.g. 16gb |
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TotalInBytes int `json:"total_in_bytes"` // e.g. 17179869184 |
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} `json:"mem"` |
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// Swap information |
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Swap struct { |
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Total string `json:"total"` // e.g. 1gb |
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TotalInBytes int `json:"total_in_bytes"` // e.g. 1073741824 |
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} `json:"swap"` |
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} |
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type NodesInfoNodeProcess struct { |
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RefreshInterval string `json:"refresh_interval"` // e.g. 1s |
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RefreshIntervalInMillis int `json:"refresh_interval_in_millis"` // e.g. 1000 |
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ID int `json:"id"` // process id, e.g. 87079 |
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MaxFileDescriptors int `json:"max_file_descriptors"` // e.g. 32768 |
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Mlockall bool `json:"mlockall"` // e.g. false |
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} |
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type NodesInfoNodeJVM struct { |
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PID int `json:"pid"` // process id, e.g. 87079 |
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Version string `json:"version"` // e.g. "1.8.0_25" |
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VMName string `json:"vm_name"` // e.g. "Java HotSpot(TM) 64-Bit Server VM" |
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VMVersion string `json:"vm_version"` // e.g. "25.25-b02" |
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VMVendor string `json:"vm_vendor"` // e.g. "Oracle Corporation" |
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StartTime time.Time `json:"start_time"` // e.g. "2015-01-03T15:18:30.982Z" |
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StartTimeInMillis int64 `json:"start_time_in_millis"` |
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// Mem information |
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Mem struct { |
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HeapInit string `json:"heap_init"` // e.g. 1gb |
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HeapInitInBytes int `json:"heap_init_in_bytes"` |
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HeapMax string `json:"heap_max"` // e.g. 4gb |
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HeapMaxInBytes int `json:"heap_max_in_bytes"` |
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NonHeapInit string `json:"non_heap_init"` // e.g. 2.4mb |
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NonHeapInitInBytes int `json:"non_heap_init_in_bytes"` |
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NonHeapMax string `json:"non_heap_max"` // e.g. 0b |
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NonHeapMaxInBytes int `json:"non_heap_max_in_bytes"` |
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DirectMax string `json:"direct_max"` // e.g. 4gb |
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DirectMaxInBytes int `json:"direct_max_in_bytes"` |
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} `json:"mem"` |
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GCCollectors []string `json:"gc_collectors"` // e.g. ["ParNew"] |
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MemoryPools []string `json:"memory_pools"` // e.g. ["Code Cache", "Metaspace"] |
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} |
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type NodesInfoNodeThreadPool struct { |
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Percolate *NodesInfoNodeThreadPoolSection `json:"percolate"` |
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Bench *NodesInfoNodeThreadPoolSection `json:"bench"` |
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Listener *NodesInfoNodeThreadPoolSection `json:"listener"` |
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Index *NodesInfoNodeThreadPoolSection `json:"index"` |
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Refresh *NodesInfoNodeThreadPoolSection `json:"refresh"` |
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Suggest *NodesInfoNodeThreadPoolSection `json:"suggest"` |
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Generic *NodesInfoNodeThreadPoolSection `json:"generic"` |
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Warmer *NodesInfoNodeThreadPoolSection `json:"warmer"` |
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Search *NodesInfoNodeThreadPoolSection `json:"search"` |
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Flush *NodesInfoNodeThreadPoolSection `json:"flush"` |
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Optimize *NodesInfoNodeThreadPoolSection `json:"optimize"` |
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Management *NodesInfoNodeThreadPoolSection `json:"management"` |
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Get *NodesInfoNodeThreadPoolSection `json:"get"` |
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Merge *NodesInfoNodeThreadPoolSection `json:"merge"` |
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Bulk *NodesInfoNodeThreadPoolSection `json:"bulk"` |
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Snapshot *NodesInfoNodeThreadPoolSection `json:"snapshot"` |
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} |
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type NodesInfoNodeThreadPoolSection struct { |
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Type string `json:"type"` // e.g. fixed |
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Min int `json:"min"` // e.g. 4 |
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Max int `json:"max"` // e.g. 4 |
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KeepAlive string `json:"keep_alive"` // e.g. "5m" |
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QueueSize interface{} `json:"queue_size"` // e.g. "1k" or -1 |
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} |
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type NodesInfoNodeNetwork struct { |
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RefreshInterval string `json:"refresh_interval"` // e.g. 1s |
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RefreshIntervalInMillis int `json:"refresh_interval_in_millis"` // e.g. 1000 |
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PrimaryInterface struct { |
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Address string `json:"address"` // e.g. 192.168.1.2 |
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Name string `json:"name"` // e.g. en0 |
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MACAddress string `json:"mac_address"` // e.g. 11:22:33:44:55:66 |
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} `json:"primary_interface"` |
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} |
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type NodesInfoNodeTransport struct { |
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BoundAddress []string `json:"bound_address"` |
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PublishAddress string `json:"publish_address"` |
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Profiles map[string]*NodesInfoNodeTransportProfile `json:"profiles"` |
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} |
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type NodesInfoNodeTransportProfile struct { |
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BoundAddress []string `json:"bound_address"` |
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PublishAddress string `json:"publish_address"` |
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} |
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type NodesInfoNodeHTTP struct { |
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BoundAddress []string `json:"bound_address"` // e.g. ["127.0.0.1:9200", "[fe80::1]:9200", "[::1]:9200"] |
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PublishAddress string `json:"publish_address"` // e.g. "127.0.0.1:9300" |
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MaxContentLength string `json:"max_content_length"` // e.g. "100mb" |
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MaxContentLengthInBytes int64 `json:"max_content_length_in_bytes"` |
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} |
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type NodesInfoNodePlugin struct { |
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Name string `json:"name"` |
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Description string `json:"description"` |
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Site bool `json:"site"` |
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JVM bool `json:"jvm"` |
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URL string `json:"url"` // e.g. /_plugin/dummy/ |
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}
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