设置时间序列数据流 (TSDS)
编辑设置时间序列数据流 (TSDS)
编辑要设置 时间序列数据流 (TSDS),请按照以下步骤操作
- 检查先决条件。
- 创建索引生命周期策略.
- 创建索引模板.
- 创建 TSDS.
- 保护 TSDS.
先决条件
编辑创建索引生命周期策略
编辑虽然是可选的,但我们建议使用 ILM 来自动管理 TSDS 的后备索引。ILM 需要索引生命周期策略。
我们建议您为策略中的 rollover
操作指定 max_age
条件。这确保了 TSDS 的后备索引的 @timestamp
范围是一致的。例如,为 rollover
操作设置 max_age
为 1d
可确保您的后备索引始终包含一天的数据。
resp = client.ilm.put_lifecycle( name="my-weather-sensor-lifecycle-policy", policy={ "phases": { "hot": { "actions": { "rollover": { "max_age": "1d", "max_primary_shard_size": "50gb" } } }, "warm": { "min_age": "30d", "actions": { "shrink": { "number_of_shards": 1 }, "forcemerge": { "max_num_segments": 1 } } }, "cold": { "min_age": "60d", "actions": { "searchable_snapshot": { "snapshot_repository": "found-snapshots" } } }, "frozen": { "min_age": "90d", "actions": { "searchable_snapshot": { "snapshot_repository": "found-snapshots" } } }, "delete": { "min_age": "735d", "actions": { "delete": {} } } } }, ) print(resp)
const response = await client.ilm.putLifecycle({ name: "my-weather-sensor-lifecycle-policy", policy: { phases: { hot: { actions: { rollover: { max_age: "1d", max_primary_shard_size: "50gb", }, }, }, warm: { min_age: "30d", actions: { shrink: { number_of_shards: 1, }, forcemerge: { max_num_segments: 1, }, }, }, cold: { min_age: "60d", actions: { searchable_snapshot: { snapshot_repository: "found-snapshots", }, }, }, frozen: { min_age: "90d", actions: { searchable_snapshot: { snapshot_repository: "found-snapshots", }, }, }, delete: { min_age: "735d", actions: { delete: {}, }, }, }, }, }); console.log(response);
PUT _ilm/policy/my-weather-sensor-lifecycle-policy { "policy": { "phases": { "hot": { "actions": { "rollover": { "max_age": "1d", "max_primary_shard_size": "50gb" } } }, "warm": { "min_age": "30d", "actions": { "shrink": { "number_of_shards": 1 }, "forcemerge": { "max_num_segments": 1 } } }, "cold": { "min_age": "60d", "actions": { "searchable_snapshot": { "snapshot_repository": "found-snapshots" } } }, "frozen": { "min_age": "90d", "actions": { "searchable_snapshot": { "snapshot_repository": "found-snapshots" } } }, "delete": { "min_age": "735d", "actions": { "delete": {} } } } } }
创建索引模板
编辑要设置 TSDS,请创建具有以下详细信息的索引模板
- 一个或多个与 TSDS 名称匹配的索引模式。我们建议使用我们的 数据流命名方案。
- 启用数据流。
-
指定定义维度和指标的映射
-
定义索引设置
- 将
index.mode
设置为time_series
。 - 您的生命周期策略在
index.lifecycle.name
索引设置中。 - 可选:其他索引设置,例如
index.number_of_replicas
,用于 TSDS 的后备索引。
- 将
- 优先级高于
200
,以避免与内置模板冲突。请参阅避免索引模式冲突。 - 可选:包含您的映射和其他索引设置的组件模板。
resp = client.indices.put_index_template( name="my-weather-sensor-index-template", index_patterns=[ "metrics-weather_sensors-*" ], data_stream={}, template={ "settings": { "index.mode": "time_series", "index.lifecycle.name": "my-lifecycle-policy" }, "mappings": { "properties": { "sensor_id": { "type": "keyword", "time_series_dimension": True }, "location": { "type": "keyword", "time_series_dimension": True }, "temperature": { "type": "half_float", "time_series_metric": "gauge" }, "humidity": { "type": "half_float", "time_series_metric": "gauge" }, "@timestamp": { "type": "date" } } } }, priority=500, meta={ "description": "Template for my weather sensor data" }, ) print(resp)
response = client.indices.put_index_template( name: 'my-weather-sensor-index-template', body: { index_patterns: [ 'metrics-weather_sensors-*' ], data_stream: {}, template: { settings: { 'index.mode' => 'time_series', 'index.lifecycle.name' => 'my-lifecycle-policy' }, mappings: { properties: { sensor_id: { type: 'keyword', time_series_dimension: true }, location: { type: 'keyword', time_series_dimension: true }, temperature: { type: 'half_float', time_series_metric: 'gauge' }, humidity: { type: 'half_float', time_series_metric: 'gauge' }, "@timestamp": { type: 'date' } } } }, priority: 500, _meta: { description: 'Template for my weather sensor data' } } ) puts response
const response = await client.indices.putIndexTemplate({ name: "my-weather-sensor-index-template", index_patterns: ["metrics-weather_sensors-*"], data_stream: {}, template: { settings: { "index.mode": "time_series", "index.lifecycle.name": "my-lifecycle-policy", }, mappings: { properties: { sensor_id: { type: "keyword", time_series_dimension: true, }, location: { type: "keyword", time_series_dimension: true, }, temperature: { type: "half_float", time_series_metric: "gauge", }, humidity: { type: "half_float", time_series_metric: "gauge", }, "@timestamp": { type: "date", }, }, }, }, priority: 500, _meta: { description: "Template for my weather sensor data", }, }); console.log(response);
PUT _index_template/my-weather-sensor-index-template { "index_patterns": ["metrics-weather_sensors-*"], "data_stream": { }, "template": { "settings": { "index.mode": "time_series", "index.lifecycle.name": "my-lifecycle-policy" }, "mappings": { "properties": { "sensor_id": { "type": "keyword", "time_series_dimension": true }, "location": { "type": "keyword", "time_series_dimension": true }, "temperature": { "type": "half_float", "time_series_metric": "gauge" }, "humidity": { "type": "half_float", "time_series_metric": "gauge" }, "@timestamp": { "type": "date" } } } }, "priority": 500, "_meta": { "description": "Template for my weather sensor data" } }
创建 TSDS
编辑索引请求将文档添加到 TSDS。TSDS 中的文档必须包含
- 一个
@timestamp
字段 - 一个或多个维度字段。至少一个维度必须与
index.routing_path
索引设置匹配(如果已指定)。如果未显式指定,则index.routing_path
会自动设置为任何将time_series_dimension
设置为true
的映射。
要自动创建 TSDS,请提交针对 TSDS 名称的索引请求。此名称必须与您的索引模板的索引模式之一匹配。
要测试以下示例,请将时间戳更新为当前时间的三小时内。添加到 TSDS 的数据必须始终在可接受的时间范围内。
resp = client.bulk( index="metrics-weather_sensors-dev", operations=[ { "create": {} }, { "@timestamp": "2099-05-06T16:21:15.000Z", "sensor_id": "HAL-000001", "location": "plains", "temperature": 26.7, "humidity": 49.9 }, { "create": {} }, { "@timestamp": "2099-05-06T16:25:42.000Z", "sensor_id": "SYKENET-000001", "location": "swamp", "temperature": 32.4, "humidity": 88.9 } ], ) print(resp) resp1 = client.index( index="metrics-weather_sensors-dev", document={ "@timestamp": "2099-05-06T16:21:15.000Z", "sensor_id": "SYKENET-000001", "location": "swamp", "temperature": 32.4, "humidity": 88.9 }, ) print(resp1)
const response = await client.bulk({ index: "metrics-weather_sensors-dev", operations: [ { create: {}, }, { "@timestamp": "2099-05-06T16:21:15.000Z", sensor_id: "HAL-000001", location: "plains", temperature: 26.7, humidity: 49.9, }, { create: {}, }, { "@timestamp": "2099-05-06T16:25:42.000Z", sensor_id: "SYKENET-000001", location: "swamp", temperature: 32.4, humidity: 88.9, }, ], }); console.log(response); const response1 = await client.index({ index: "metrics-weather_sensors-dev", document: { "@timestamp": "2099-05-06T16:21:15.000Z", sensor_id: "SYKENET-000001", location: "swamp", temperature: 32.4, humidity: 88.9, }, }); console.log(response1);
PUT metrics-weather_sensors-dev/_bulk { "create":{ } } { "@timestamp": "2099-05-06T16:21:15.000Z", "sensor_id": "HAL-000001", "location": "plains", "temperature": 26.7,"humidity": 49.9 } { "create":{ } } { "@timestamp": "2099-05-06T16:25:42.000Z", "sensor_id": "SYKENET-000001", "location": "swamp", "temperature": 32.4, "humidity": 88.9 } POST metrics-weather_sensors-dev/_doc { "@timestamp": "2099-05-06T16:21:15.000Z", "sensor_id": "SYKENET-000001", "location": "swamp", "temperature": 32.4, "humidity": 88.9 }
您还可以使用 创建数据流 API 手动创建 TSDS。TSDS 的名称仍然必须与您的模板的索引模式之一匹配。
resp = client.indices.create_data_stream( name="metrics-weather_sensors-dev", ) print(resp)
response = client.indices.create_data_stream( name: 'metrics-weather_sensors-dev' ) puts response
const response = await client.indices.createDataStream({ name: "metrics-weather_sensors-dev", }); console.log(response);
PUT _data_stream/metrics-weather_sensors-dev
保护 TSDS
编辑使用 索引权限来控制对 TSDS 的访问。授予 TSDS 上的权限会授予其后备索引上的相同权限。
有关示例,请参阅数据流权限。
将现有数据流转换为 TSDS
编辑您还可以使用上述步骤将现有的常规数据流转换为 TSDS。在这种情况下,您需要
- 编辑您现有的索引生命周期策略、组件模板和索引模板,而不是创建新的。
-
手动滚动更新其写入索引,而不是创建 TSDS。这确保了当前写入索引和任何新的后备索引都具有
index.mode
为time_series
。您可以使用 滚动更新 API 手动滚动更新写入索引。
resp = client.indices.rollover( alias="metrics-weather_sensors-dev", ) print(resp)
response = client.indices.rollover( alias: 'metrics-weather_sensors-dev' ) puts response
const response = await client.indices.rollover({ alias: "metrics-weather_sensors-dev", }); console.log(response);
POST metrics-weather_sensors-dev/_rollover
关于组件模板和 index.mode 设置的说明
编辑通过使用组件模板的索引模板配置 TSDS 会更复杂一些。通常,使用组件模板时,映射和设置会分散在多个组件模板中。如果定义了 index.routing_path
,则它引用的字段需要在同一组件模板中使用启用的 time_series_dimension
属性进行定义。
这样做的原因是每个组件模板都需要单独有效。在索引模板中配置 index.mode
设置时,会自动配置 index.routing_path
设置。它从启用了 time_series_dimension
属性的字段映射派生而来。
下一步是什么?
编辑现在您已经设置了 TSDS,您可以像使用常规数据流一样管理和使用它。有关更多信息,请参阅