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Cut changelog for v2.14 (#9424)
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* changelog v2.14-rc0

Signed-off-by: Vladimir Varankin <[email protected]>

* put experimental features back to release

Signed-off-by: Vladimir Varankin <[email protected]>

---------

Signed-off-by: Vladimir Varankin <[email protected]>
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narqo authored Sep 27, 2024
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### Grafana Mimir

* [CHANGE] Alertmanager: the following metrics are not exported for a given `user` when the metric value is zero: #9359
* `cortex_alertmanager_alerts_received_total`
* `cortex_alertmanager_alerts_invalid_total`
* `cortex_alertmanager_partial_state_merges_total`
* `cortex_alertmanager_partial_state_merges_failed_total`
* `cortex_alertmanager_state_replication_total`
* `cortex_alertmanager_state_replication_failed_total`
* `cortex_alertmanager_alerts`
* `cortex_alertmanager_silences`
* [FEATURE] Querier: add experimental streaming PromQL engine, enabled with `-querier.query-engine=mimir`. #9367 #9368 #9398 #9399 #9403 #9417 #9418 #9419 #9420
* [FEATURE] Query-frontend: added experimental configuration options `query-frontend.cache-errors` and `query-frontend.results-cache-ttl-for-errors` to allow non-transient responses to be cached. When set to `true` error responses from hitting limits or bad data are cached for a short TTL. #9028
* [FEATURE] gRPC: Support S2 compression. #9322
* `-alertmanager.alertmanager-client.grpc-compression=s2`
* `-ingester.client.grpc-compression=s2`
* `-querier.frontend-client.grpc-compression=s2`
* `-querier.scheduler-client.grpc-compression=s2`
* `-query-frontend.grpc-client-config.grpc-compression=s2`
* `-query-scheduler.grpc-client-config.grpc-compression=s2`
* `-ruler.client.grpc-compression=s2`
* `-ruler.query-frontend.grpc-client-config.grpc-compression=s2`
* [ENHANCEMENT] Ruler: Support `exclude_alerts` parameter in `<prometheus-http-prefix>/api/v1/rules` endpoint. #9300
* [ENHANCEMENT] Distributor: add a metric to track tenants who are sending newlines in their label values called `cortex_distributor_label_values_with_newlines_total`. #9400

### Mixin

* [BUGFIX] Dashboards: Fix autoscaling metrics joins when series churn. #9412
* [BUGFIX] Alerts: Fix autoscaling metrics joins in `MimirAutoscalerNotActive` when series churn. #9412

### Jsonnet

### Mimirtool

### Mimir Continuous Test

### Query-tee

### Documentation

### Tools

## v2.14.0-rc.0

### Grafana Mimir

* [CHANGE] Update minimal supported version of Go to 1.22. #9134
* [CHANGE] Store-gateway / querier: enable streaming chunks from store-gateways to queriers by default. #6646
* [CHANGE] Querier: honor the start/end time range specified in the read hints when executing a remote read request. #8431
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* [CHANGE] Distributor: reject incoming requests until the distributor service has started. #9317
* [CHANGE] Ingester, Distributor: Remove deprecated `-ingester.limit-inflight-requests-using-grpc-method-limiter` and `-distributor.limit-inflight-requests-using-grpc-method-limiter`. The feature was deprecated and enabled by default in Mimir 2.12. #9407
* [CHANGE] Querier: Remove deprecated `-querier.max-query-into-future`. The feature was deprecated in Mimir 2.12. #9407
* [CHANGE] Alertmanager: the following metrics are not exported for a given `user` when the metric value is zero: #9359
* `cortex_alertmanager_alerts_received_total`
* `cortex_alertmanager_alerts_invalid_total`
* `cortex_alertmanager_partial_state_merges_total`
* `cortex_alertmanager_partial_state_merges_failed_total`
* `cortex_alertmanager_state_replication_total`
* `cortex_alertmanager_state_replication_failed_total`
* `cortex_alertmanager_alerts`
* `cortex_alertmanager_silences`
* [FEATURE] Alertmanager: Added `-alertmanager.log-parsing-label-matchers` to control logging when parsing label matchers. This flag is intended to be used with `-alertmanager.utf8-strict-mode-enabled` to validate UTF-8 strict mode is working as intended. The default value is `false`. #9173
* [FEATURE] Alertmanager: Added `-alertmanager.utf8-migration-logging-enabled` to enable logging of tenant configurations that are incompatible with UTF-8 strict mode. The default value is `false`. #9174
* [FEATURE] Querier: add experimental streaming PromQL engine, enabled with `-querier.query-engine=mimir`. #8422 #8430 #8454 #8455 #8360 #8490 #8508 #8577 #8660 #8671 #8677 #8747 #8850 #8872 #8838 #8911 #8909 #8923 #8924 #8925 #8932 #8933 #8934 #8962 #8986 #8993 #8995 #9008 #9017 #9018 #9019 #9120 #9121 #9136 #9139 #9140 #9145 #9191 #9192 #9194 #9196 #9201 #9212 #9225 #9260 #9272 #9277 #9278 #9280 #9281 #9342 #9343 #9367 #9368 #9371 #9398 #9399 #9403 #9417 #9418 #9419 #9420
* [FEATURE] Querier: add experimental streaming PromQL engine, enabled with `-querier.query-engine=mimir`. #8422 #8430 #8454 #8455 #8360 #8490 #8508 #8577 #8660 #8671 #8677 #8747 #8850 #8872 #8838 #8911 #8909 #8923 #8924 #8925 #8932 #8933 #8934 #8962 #8986 #8993 #8995 #9008 #9017 #9018 #9019 #9120 #9121 #9136 #9139 #9140 #9145 #9191 #9192 #9194 #9196 #9201 #9212 #9225 #9260 #9272 #9277 #9278 #9280 #9281 #9342 #9343 #9371
* [FEATURE] Experimental Kafka-based ingest storage. #6888 #6894 #6929 #6940 #6951 #6974 #6982 #7029 #7030 #7091 #7142 #7147 #7148 #7153 #7160 #7193 #7349 #7376 #7388 #7391 #7393 #7394 #7402 #7404 #7423 #7424 #7437 #7486 #7503 #7508 #7540 #7621 #7682 #7685 #7694 #7695 #7696 #7697 #7701 #7733 #7734 #7741 #7752 #7838 #7851 #7871 #7877 #7880 #7882 #7887 #7891 #7925 #7955 #7967 #8031 #8063 #8077 #8088 #8135 #8176 #8184 #8194 #8216 #8217 #8222 #8233 #8503 #8542 #8579 #8657 #8686 #8688 #8703 #8706 #8708 #8738 #8750 #8778 #8808 #8809 #8841 #8842 #8845 #8853 #8886 #8988
* What it is:
* When the new ingest storage architecture is enabled, distributors write incoming write requests to a Kafka-compatible backend, and the ingesters asynchronously replay ingested data from Kafka. In this architecture, the write and read path are de-coupled through a Kafka-compatible backend. The write path and Kafka load is a function of the incoming write traffic, the read path load is a function of received queries. Whatever the load on the read path, it doesn't affect the write path.
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* [FEATURE] Query frontend: added new query pruning middleware to enable pruning dead code (eg. expressions that cannot produce any results) and simplifying expressions (eg. expressions that can be evaluated immediately) in queries. #9086
* [FEATURE] Ruler: added experimental configuration, `-ruler.rule-evaluation-write-enabled`, to disable writing the result of rule evaluation to ingesters. This feature can be used for testing purposes. #9060
* [FEATURE] Ingester: added experimental configuration `ingester.ignore-ooo-exemplars`. When set to `true` out of order exemplars are no longer reported to the remote write client. #9151
* [FEATURE] gRPC: Support S2 compression. #9322
* `-alertmanager.alertmanager-client.grpc-compression=s2`
* `-ingester.client.grpc-compression=s2`
* `-querier.frontend-client.grpc-compression=s2`
* `-querier.scheduler-client.grpc-compression=s2`
* `-query-frontend.grpc-client-config.grpc-compression=s2`
* `-query-scheduler.grpc-client-config.grpc-compression=s2`
* `-ruler.client.grpc-compression=s2`
* `-ruler.query-frontend.grpc-client-config.grpc-compression=s2`
* [FEATURE] Query-frontend: added experimental configuration options `query-frontend.cache-errors` and `query-frontend.results-cache-ttl-for-errors` to allow non-transient responses to be cached. When set to `true` error responses from hitting limits or bad data are cached for a short TTL. #9028
* [ENHANCEMENT] Compactor: Add `cortex_compactor_compaction_job_duration_seconds` and `cortex_compactor_compaction_job_blocks` histogram metrics to track duration of individual compaction jobs and number of blocks per job. #8371
* [ENHANCEMENT] Rules: Added per namespace max rules per rule group limit. The maximum number of rules per rule groups for all namespaces continues to be configured by `-ruler.max-rules-per-rule-group`, but now, this can be superseded by the new `-ruler.max-rules-per-rule-group-by-namespace` option on a per namespace basis. This new limit can be overridden using the overrides mechanism to be applied per-tenant. #8378
* [ENHANCEMENT] Rules: Added per namespace max rule groups per tenant limit. The maximum number of rule groups per rule tenant for all namespaces continues to be configured by `-ruler.max-rule-groups-per-tenant`, but now, this can be superseded by the new `-ruler.max-rule-groups-per-tenant-by-namespace` option on a per namespace basis. This new limit can be overridden using the overrides mechanism to be applied per-tenant. #8425
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* [ENHANCEMENT] Querier: attach logs emitted during query consistency check to trace span for query. #9213
* [ENHANCEMENT] Query-scheduler: Experimental `-query-scheduler.prioritize-query-components` flag enables the querier-worker queue priority algorithm to take precedence over tenant rotation when dequeuing requests. #9220
* [ENHANCEMENT] Add application credential arguments for Openstack Swift storage backend. #9181
* [ENHANCEMENT] Ruler: Support `exclude_alerts` parameter in `<prometheus-http-prefix>/api/v1/rules` endpoint. #9300
* [ENHANCEMENT] Distributor: add a metric to track tenants who are sending newlines in their label values called `cortex_distributor_label_values_with_newlines_total`. #9400
* [BUGFIX] Ruler: add support for draining any outstanding alert notifications before shutting down. This can be enabled with the `-ruler.drain-notification-queue-on-shutdown=true` CLI flag. #8346
* [BUGFIX] Query-frontend: fix `-querier.max-query-lookback` enforcement when `-compactor.blocks-retention-period` is not set, and viceversa. #8388
* [BUGFIX] Ingester: fix sporadic `not found` error causing an internal server error if label names are queried with matchers during head compaction. #8391
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* [BUGFIX] Alerts: do not fire `MimirRingMembersMismatch` during the migration to experimental ingest storage. #8727
* [BUGFIX] Dashboards: avoid over-counting of ingesters metrics when migrating to experimental ingest storage. #9170
* [BUGFIX] Dashboards: fix `job_prefix` not utilized in `jobSelector`. #9155
* [BUGFIX] Dashboards: Fix autoscaling metrics joins when series churn. #9412
* [BUGFIX] Alerts: Fix autoscaling metrics joins in `MimirAutoscalerNotActive` when series churn. #9412

### Jsonnet

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