Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

Documentation Grafana Mimir References HTTP API

Grafana Mimir HTTP API

Grafana Mimir exposes an HTTP API that you can use to write and query time series data, and operate the cluster.

This document groups API endpoints by service. Note that the API endpoints are exposed when you run Grafana Mimir in microservices mode, monolithic mode, and read-write mode:

• Microservices mode: Each service exposes its own endpoints.
• Monolithic mode: The Grafana Mimir instance exposes all API endpoints.
• Read-Write mode: The component services are exposed on the endpoint that they are contained within. Either Mimir read, Mimir write, or Mimir backend. Refer to Deployment modes for the grouping of components.

Endpoints

Path prefixes

The following table provides usage of placeholder path prefixes, for prefixes that are configurable.

Authentication

Endpoints that require authentication must be called with the X-Scope-OrgID HTTP request header specified to the tenant ID.

If you disable multi-tenancy, Grafana Mimir doesn’t require any request to include the X-Scope-OrgID header.

Multi-tenancy can be enabled and disabled via the -auth.multitenancy-enabled flag or its respective YAML configuration option.

For more information about authentication and authorization, refer to Authentication and Authorization.

All services

The following API endpoints are exposed by all services.

Index page

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GET /

This endpoint displays an index page with links to other web pages exposed by Grafana Mimir.

Configuration

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GET /config

This endpoint displays the configuration currently applied to Grafana Mimir including default values and settings via CLI flags. This endpoint provides the configuration in YAML format and masks sensitive data.

Note: The exported configuration doesn’t include the per-tenant overrides.

Different modes

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GET /config?mode=diff

This endpoint displays the differences between the Grafana Mimir default configuration and the current configuration.

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GET /config?mode=defaults

This endpoint displays the default configuration values.

Status Configuration

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GET /api/v1/status/config

This endpoint displays empty configuration settings, it exists only to be compatible with the Prometheus /api/v1/status/config API.

Status Flags

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GET /api/v1/status/flags

This endpoint displays empty configuration flags, it exists only to be compatible with the Prometheus /api/v1/status/flags API.

Runtime Configuration

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GET /runtime_config

This endpoint displays the runtime configuration currently applied to Grafana Mimir, in YAML format, including default values. The endpoint is only available if Grafana Mimir is configured with the -runtime-config.file option.

Different modes

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GET /runtime_config?mode=diff

This endpoint displays the differences between the Grafana Mimir default runtime configuration and the current runtime configuration.

Services’ status

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GET /services

This endpoint displays a web page with the status of internal Grafana Mimir services.

Readiness probe

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GET /ready

This endoint returns 200 when Grafana Mimir is ready to serve traffic.

Metrics

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GET /metrics

This endpoint returns the metrics for the running Grafana Mimir service in the Prometheus exposition format.

Pprof

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GET /debug/pprof/heap
GET /debug/pprof/block
GET /debug/pprof/profile
GET /debug/pprof/trace
GET /debug/pprof/goroutine
GET /debug/pprof/mutex

These endpoints return runtime profiling data in the format expected by the pprof visualization tool. There are many things that can be profiled using this endpoint, including heap, trace, goroutine, and so on.

For more information about pprof, refer to pprof.

Fgprof

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GET /debug/fgprof

This endpoint returns the sampling Go profiling data that you can use to analyze On-CPU and Off-CPU (for example, I/O) time.

For more information about fgprof, refer to fgprof.

Build information

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GET /api/v1/status/buildinfo
GET <prometheus-http-prefix>/api/v1/status/buildinfo
GET <alertmanager-http-prefix>/api/v1/status/buildinfo

This endpoint returns in JSON format information about the build and enabled features. The format returned is not identical, but is similar to the Prometheus Build Information endpoint.

Memberlist cluster

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GET /memberlist

This admin page shows information about Memberlist cluster (list of nodes and their health) and KV store (keys and values in the KV store).

If memberlist message history is enabled, this page also shows all received and sent messages stored in the buffers. This can be useful for troubleshooting memberlist cluster. To enable message history buffers use -memberlist.message-history-buffer-bytes CLI flag or the corresponding YAML configuration parameter.

Get tenant limits

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GET /api/v1/user_limits

Returns realtime limits for the authenticated tenant, in JSON format. This API is experimental.

Requires authentication.

The endpoint is only available if Grafana Mimir is configured with the -runtime-config.file option.

Distributor

The following endpoints relate to the distributor.

Remote write

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POST /api/v1/push

Entrypoint for the Prometheus remote write.

This endpoint accepts an HTTP POST request with a body that contains a request encoded with Protocol Buffers and compressed with Snappy. You can find the definition of the protobuf message in pkg/mimirpb/mimir.proto. The HTTP request must contain the header X-Prometheus-Remote-Write-Version set to 0.1.0.

To skip the label name validation, perform the following actions:

• Enable API’s flag -api.skip-label-name-validation-header-enabled=true
• Ensure that the request is sent with the header X-Mimir-SkipLabelNameValidation: true

This feature supports the writes from non-standard downstream clients that have metric name not Prometheus compliant.

For more information, refer to Prometheus Remote storage integrations.

Requires authentication.

OTLP

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POST /otlp/v1/metrics

Entrypoint for the OTLP HTTP. Experimental.

This endpoint accepts an HTTP POST request with a body that contains a request encoded with Protocol Buffers and optionally compressed with GZIP. You can find the definition of the protobuf message in metrics.proto.

Requires authentication.

Distributor ring status

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GET /distributor/ring

This endpoint displays a web page with the distributor hash ring status, including the state, and the health and last heartbeat time of each distributor.

Tenants stats

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GET /distributor/all_user_stats

This endpoint displays a web page that shows per-tenant statistics updated in real time, including the total number of active series across all ingesters and the current ingestion rate displayed in samples per second.

Note: This endpoint requires all ingesters to be ACTIVE in the ring for a successful response.

HA tracker status

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GET /distributor/ha_tracker

This endpoint displays a web page with the current status of the HA tracker, including the elected replica for each Prometheus HA cluster.

Ingester

The following endpoints relate to the ingester.

Flush chunks / blocks

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GET,POST /ingester/flush

This endpoint triggers a flush of the in-memory series time series data to the long-term storage. This endpoint also triggers the flush when -blocks-storage.tsdb.flush-blocks-on-shutdown is disabled.

This endpoint accepts a tenant parameter to specify the tenant whose blocks are compacted and shipped. This parameter might be specified multiple times to select more tenants. If no tenant is specified, all tenants are flushed.

The flush endpoint also accepts a wait=true parameter, which makes the call synchronous, and only returns a status code after flushing completes.

Note: The returned status code does not reflect the result of flush operation.

Shutdown

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GET,POST /ingester/shutdown

This endpoint flushes in-memory time series data from ingesters to the long-term storage, and then shuts down the ingester service. After the shutdown endpoint returns, the operator or any automation that’s used terminates the process with a SIGINT / SIGTERM signal. During this time, /ready does not return 200. This endpoint unregisters the ingester from the ring even if you disable -ingester.ring.unregister-on-shutdown.

This API endpoint is usually used by scale down automations.

TSDB Metrics

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GET /ingester/tsdb_metrics

This endpoint returns low-level metrics exposed by per-tenant TSDB. This can be useful for troubleshooting. Difference from /metrics is that metrics returned in /metrics are aggregated across all open TSDBs, while this endpoint returns TSDB metrics only for specific tenant.

Requires authentication, authenticated tenant is one whose TSDB metrics are returned.

Ingesters ring status

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GET /ingester/ring

This endpoint displays a web page with the ingesters hash ring status, including the state, health, and last heartbeat time of each ingester.

Querier / Query-frontend

The following endpoints are exposed both by the querier and query-frontend.

Instant query

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GET,POST <prometheus-http-prefix>/api/v1/query

This endpoint is compatible with the Prometheus instant query endpoint.

For more information about Prometheus instant queries, refer to Prometheus instant query.

Requires authentication.

Range query

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GET,POST <prometheus-http-prefix>/api/v1/query_range

This endpoint is compatible with the Prometheus range query endpoint. When a client sends a request through the query-frontend, the query-frontend uses caching and execution parallelization to accelerate the query.

For more information about Prometheus range queries, refer to Prometheus range query.

Requires authentication.

Exemplar query

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GET,POST <prometheus-http-prefix>/api/v1/query_exemplars

This endpoint is compatible with the Prometheus exemplar query endpoint.

For more information about Prometheus exemplar queries, refer to Prometheus exemplar query.

Requires authentication.

Get series by label matchers

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GET,POST <prometheus-http-prefix>/api/v1/series

For more information, refer to Prometheus series endpoint.

Requires authentication.

Get label names

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GET,POST <prometheus-http-prefix>/api/v1/labels

For more information, refer to Prometheus get label names.

Requires authentication.

Get label values

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GET <prometheus-http-prefix>/api/v1/label/{name}/values

For more information, refer to Prometheus get label values.

Requires authentication.

Get metric metadata

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GET <prometheus-http-prefix>/api/v1/metadata

Prometheus-compatible metric metadata endpoint.

For more information, refer to Prometheus metric metadata.

Requires authentication.

Remote read

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POST <prometheus-http-prefix>/api/v1/read

Prometheus-compatible remote read endpoint.

For more information, refer to Prometheus Remote storage integrations.

Requires authentication.

Label names cardinality

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GET,POST <prometheus-http-prefix>/api/v1/cardinality/label_names

Returns realtime label names cardinality across all ingesters, for the authenticated tenant, in JSON format. It counts distinct label values per label name.

As far as this endpoint generates cardinality report using only values from currently opened TSDBs in ingesters, two subsequent calls may return completely different results, if ingester did a block cutting between the calls.

The items in the field cardinality are sorted by label_values_count in DESC order and by label_name in ASC order.

The count of items is limited by limit request param.

This endpoint is disabled by default and can be enabled via the -querier.cardinality-analysis-enabled CLI flag (or its respective YAML config option).

Requires authentication.

Request params

• selector - optional - specifies PromQL selector that will be used to filter series that must be analyzed.
• limit - optional - specifies max count of items in field cardinality in response (default=20, min=0, max=500)

Response schema

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{
  "label_values_count_total": <number>,
  "label_names_count": <number>,
  "cardinality": [
    {
      "label_name": <string>,
      "label_values_count": <number>
    }
  ]
}

Label values cardinality

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GET,POST <prometheus-http-prefix>/api/v1/cardinality/label_values

Returns realtime label values cardinality associated to request param label_names[] across all ingesters, for the authenticated tenant, in JSON format. It returns the series count per label value associated to request param label_names[].

As far as this endpoint generates cardinality report using only values from currently opened TSDBs in ingesters, two subsequent calls may return completely different results, if ingester did a block cutting between the calls.

The items in the field labels are sorted by series_count in DESC order and by label_name in ASC order. The items in the field cardinality are sorted by series_count in DESC order and by label_value in ASC order.

The count of cardinality items is limited by request param limit.

This endpoint is disabled by default and can be enabled via the -querier.cardinality-analysis-enabled CLI flag (or its respective YAML config option).

Requires authentication.

Request params

• label_names[] - required - specifies labels for which cardinality must be provided.
• selector - optional - specifies PromQL selector that will be used to filter series that must be analyzed.
• limit - optional - specifies max count of items in field cardinality in response (default=20, min=0, max=500).

Response schema

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{
  "series_count_total": <number>,
  "labels": [
    {
      "label_name": <string>,
      "label_values_count": <number>,
      "series_count": <number>,
      "cardinality": [
        {
          "label_value": <string>,
          "series_count": <number>
        }
      ]
    }
  ]
}

• series_count_total - total number of series across opened TSDBs in all ingesters
• labels[].label_name - label name requested via the request param label_names[]
• labels[].label_values_count - total number of label values for the label name (note that dependent on the limit request param it is possible that not all label values are present in cardinality)
• labels[].series_count - total number of series having labels[].label_name
• labels[].cardinality[].label_value - label value associated to labels[].label_name
• labels[].cardinality[].series_count - total number of series having label_value for label_name

Querier

Get tenant ingestion stats

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GET /api/v1/user_stats

Returns realtime ingestion rate, for the authenticated tenant, in JSON format.

Requires authentication.

Query-scheduler

Query-scheduler ring status

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GET /query-scheduler/ring

Displays a web page with the query-scheduler hash ring status, including the state, healthy and last heartbeat time of each query-scheduler. The query-scheduler ring is available only when -query-scheduler.service-discovery-mode is set to ring.

Ruler

The ruler API endpoints require to configure a backend object storage to store the recording rules and alerts. The ruler API uses the concept of a “namespace” when creating rule groups. This is a stand in for the name of the rule file in Prometheus and rule groups must be named uniquely within a namespace.

Ruler ring status

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GET /ruler/ring

Displays a web page with the ruler hash ring status, including the state, healthy and last heartbeat time of each ruler.

Ruler rules

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GET /ruler/rule_groups

List all tenant rules. This endpoint is not part of ruler-API and is always available regardless of whether ruler-API is enabled or not. It should not be exposed to end users. This endpoint returns a YAML dictionary with all the rule groups for each tenant and 200 status code on success.

List Prometheus rules

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GET <prometheus-http-prefix>/api/v1/rules

Prometheus-compatible rules endpoint to list alerting and recording rules that are currently loaded.

For more information, refer to Prometheus rules.

Requires authentication.

List Prometheus alerts

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GET <prometheus-http-prefix>/api/v1/alerts

Prometheus-compatible rules endpoint to list of all active alerts.

For more information, refer to Prometheus alerts documentation.

Requires authentication.

List rule groups

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GET <prometheus-http-prefix>/config/v1/rules

List all rules configured for the authenticated tenant. This endpoint returns a YAML dictionary with all the rule groups for each namespace and 200 status code on success.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To list all rule groups from Mimir, use mimirtool rules list command.

Example response

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---
<namespace1>:
- name: <string>
  interval: <duration;optional>
  source_tenants:
    - <string>
  rules:
  - record: <string>
      expr: <string>
  - alert: <string>
      expr: <string>
      for: <duration>
      annotations:
        <annotation_name>: <string>
      labels:
        <label_name>: <string>
- name: <string>
  interval: <duration;optional>
  source_tenants:
    - <string>
  rules:
  - record: <string>
      expr: <string>
  - alert: <string>
      expr: <string>
      for: <duration>
      annotations:
        <annotation_name>: <string>
      labels:
        <label_name>: <string>
<namespace2>:
- name: <string>
  interval: <duration;optional>
  source_tenants:
    - <string>
  rules:
  - record: <string>
      expr: <string>
  - alert: <string>
      expr: <string>
      for: <duration>
      annotations:
        <annotation_name>: <string>
      labels:
        <label_name>: <string>

Get rule groups by namespace

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GET <prometheus-http-prefix>/config/v1/rules/{namespace}

Returns the rule groups defined for a given namespace.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Example response

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name: <string>
interval: <duration;optional>
source_tenants:
  - <string>
rules:
  - record: <string>
    expr: <string>
  - alert: <string>
    expr: <string>
    for: <duration>
    annotations:
      <annotation_name>: <string>
    labels:
      <label_name>: <string>

Get rule group

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GET <prometheus-http-prefix>/config/v1/rules/{namespace}/{groupName}

Returns the rule group matching the request namespace and group name.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To retrieve a single rule group from Mimir, use mimirtool rules get command .

Set rule group

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POST /<prometheus-http-prefix>/config/v1/rules/{namespace}

Creates or updates a rule group. This endpoint expects a request with Content-Type: application/yaml header and the rules group YAML definition in the request body, and returns 202 on success. The request body must contain the definition of one and only one rule group.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To load one or more rule groups into Mimir, use mimirtool rules load command .

Note: When using curl send the request body from a file, ensure that you use the --data-binary flag instead of -d, --data, or --data-ascii. The latter options do not preserve carriage returns and newlines.

Example request body

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name: MyGroupName
rules:
  - alert: MyAlertName
    expr: up == 0
    labels:
      severity: warning

Delete rule group

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DELETE /<prometheus-http-prefix>/config/v1/rules/{namespace}/{groupName}

Deletes a rule group by namespace and group name. This endpoints returns 202 on success.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To delete a rule group from Mimir, use mimirtool rules delete command.

Delete namespace

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DELETE /<prometheus-http-prefix>/config/v1/rules/{namespace}

Deletes all the rule groups in a namespace (including the namespace itself). This endpoint returns 202 on success.

This endpoint can be disabled via the -ruler.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Delete tenant configuration

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POST /ruler/delete_tenant_config

This deletes all rule groups for a tenant, and returns 200 on success. Calling this endpoint when no rule groups exist for a tenant returns 200. Authentication is only to identify the tenant.

This is intended as internal API, and not to be exposed to users. This endpoint is enabled regardless of whether -ruler.enable-api is enabled or not.

Requires authentication.

Alertmanager

Alertmanager status

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GET /multitenant_alertmanager/status

Displays a web page with the current status of the Alertmanager, including the Alertmanager cluster members.

Alertmanager configs

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GET /multitenant_alertmanager/configs

List all Alertmanager configurations. This endpoint is not part of Alertmanager API and is always available regardless of whether Alertmanager API is enabled or not. It should not be exposed to end users. This endpoint returns a YAML dictionary with all the Alertmanager configurations and 200 status code on success.

Alertmanager ring status

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GET /multitenant_alertmanager/ring

Displays a web page with the Alertmanager hash ring status, including the state, healthy and last heartbeat time of each Alertmanager instance.

Alertmanager UI

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GET /<alertmanager-http-prefix>

Displays the Alertmanager UI.

Requires authentication.

Alertmanager Delete Tenant Configuration

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POST /multitenant_alertmanager/delete_tenant_config

This endpoint deletes configuration for a tenant identified by X-Scope-OrgID header. It is internal, available even if Alertmanager API is disabled. The endpoint returns a status code of 200 if the user’s configuration has been deleted, or it didn’t exist in the first place.

Requires authentication.

Get Alertmanager configuration

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GET /api/v1/alerts

Get the current Alertmanager configuration for the authenticated tenant, reading it from the configured object storage.

This endpoint doesn’t accept any URL query parameter and returns 200 on success.

This endpoint can be enabled and disabled via the -alertmanager.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To retrieve a tenant’s Alertmanager configuration from Mimir, use mimirtool alertmanager get command.

Set Alertmanager configuration

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POST /api/v1/alerts

Stores or updates the Alertmanager configuration for the authenticated tenant. The Alertmanager configuration is stored in the configured backend object storage.

This endpoint expects the Alertmanager YAML configuration in the request body and returns 201 on success.

This endpoint can be enabled and disabled via the -alertmanager.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To load a tenant’s Alertmanager configuration to Mimir, use mimirtool alertmanager load command.

Note: When using curl send the request body from a file, ensure that you use the --data-binary flag instead of -d, --data, or --data-ascii. The latter options do not preserve carriage returns and newlines.

Example request body

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template_files:
  default_template: |
    {{ define "__alertmanager" }}AlertManager{{ end }}
    {{ define "__alertmanagerURL" }}{{ .ExternalURL }}/#/alerts?receiver={{ .Receiver | urlquery }}{{ end }}
alertmanager_config: |
  global:
    smtp_smarthost: 'localhost:25'
    smtp_from: 'youraddress@example.org'
  templates:
    - 'default_template'
  route:
    receiver: example-email
  receivers:
    - name: example-email
      email_configs:
      - to: 'youraddress@example.org'

Delete Alertmanager configuration

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DELETE /api/v1/alerts

Deletes the Alertmanager configuration for the authenticated tenant.

This endpoint doesn’t accept any URL query parameter and returns 200 on success.

This endpoint can be enabled and disabled via the -alertmanager.enable-api CLI flag (or its respective YAML config option).

Requires authentication.

Note: To delete a tenant’s Alertmanager configuration from Mimir, use mimirtool alertmanager delete command.

Store-gateway

Store-gateway ring status

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GET /store-gateway/ring

Displays a web page with the store-gateway hash ring status, including the state, healthy and last heartbeat time of each store-gateway.

Store-gateway tenants

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GET /store-gateway/tenants

Displays a web page with the list of tenants with blocks in the storage configured for store-gateway.

Store-gateway tenant blocks

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GET /store-gateway/tenant/{tenant}/blocks

Displays a web page listing the blocks for a given tenant.

Compactor

Compactor ring status

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GET /compactor/ring

Displays a web page with the compactor hash ring status, including the state, healthy and last heartbeat time of each compactor.

Start block upload

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POST /api/v1/upload/block/{block}/start

Starts the uploading of a TSDB block with a given ID to object storage. The client should send the block’s meta.json file as the request body. If the complete block already exists in object storage, a 409 (Conflict) status code gets returned. If the provided meta.json file is invalid, a 400 (Bad Request) status code gets returned. If the block’s max time is before the tenant’s retention period, a 422 (Unprocessable Entity) status code gets returned.

The provided meta.json file must have a thanos.files section with the list of the block’s files, otherwise the request will be rejected.

If the API request succeeds, a sanitized version of the block’s meta.json file gets uploaded to object storage as uploading-meta.json, and a 200 status code gets returned. Then you can start uploading files, and once done, you can request completion of the block upload.

Requires authentication.

Upload block file

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POST /api/v1/upload/block/{block}/files?path={path}

Uploads a file with a given path, for a block with a given ID. The file path has to be one of the following, otherwise a 400 (Bad Request) status code gets returned:

• index
• chunks/<6-digit number>

The client must send the content of the file as the body of the request; if the body is empty, a 400 (Bad Request) status code gets returned. If the complete block already exists in object storage, a 409 (Conflict) status code gets returned. If an in-flight meta file (uploading-meta.json) doesn’t exist in object storage for the block in question, a 404 (Not Found) status code gets returned.

If the API request succeeds, the file gets uploaded with the given path to the block’s directory in object storage, and a 200 status code gets returned.

Requires authentication.

Complete block upload

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POST /api/v1/upload/block/{block}/finish

Initiates the completion of a TSDB block with a given ID to object storage. If the complete block already exists in object storage, a 409 (Conflict) status code gets returned. If an in-flight meta file (uploading-meta.json) doesn’t exist in object storage for the block in question, a 404 (Not Found) status code gets returned.

If the API request succeeds, compactor will start the block validation in the background. If the background validation passes block upload is finished by renaming in-flight meta file to meta.json in the block’s directory.

This API endpoint returns 200 (OK) at the beginning of the validation. To further check state of the block upload, use Check block upload API endpoint.

Requires authentication.

This API endpoint is experimental and subject to change.

Check block upload

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GET /api/v1/upload/block/{block}/check

Returns state of the block upload. State is returned as JSON object with field result, with following possible values:

• complete – block validation is complete, and block upload is now finished.
• uploading – block is still being uploaded, and Complete block upload has not yet been called on the block.
• validating – block is being validated. Validation was started by call to Complete block upload API.
• failed – block validation has failed. Error message is available from error field of the returned JSON object.

Example response

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{ "result": "uploading" }

Example response

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{ "result": "failed", "error": "missing index file" }

Requires authentication.

This API endpoint is experimental and subject to change.

Tenant Delete Request

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POST /compactor/delete_tenant

Request deletion of ALL tenant data.

Requires authentication.

Tenant Delete Status

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GET /compactor/delete_tenant_status

Returns status of tenant deletion.

Response schema

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{
  "tenant_id": "<id>",
  "blocks_deleted": true
}

The blocks_deleted field will be set to true if all the tenant’s blocks have been deleted.

Requires authentication.

Overrides-exporter

Overrides-exporter ring status

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GET /overrides-exporter/ring

Displays a web page with the overrides-exporter hash ring status, including the state, healthy and last heartbeat time of each overrides-exporter. The overrides-exporter ring is available only when -overrides-exporter.ring.enabled is set to true.