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Sep 06, 2021 · The query frontend also supports caching metric query results and reuses them on subsequent queries. The cache is store in Loki's caching backend (currently Memcached, Redis, and an in-memory...

The query frontend operates in one of two ways: Specify --frontend.downstream-url or its YAML equivalent, frontend.downstream_url. This proxies requests over HTTP to the specified URL. Without --frontend.downstream-url or its yaml equivalent frontend.downstream_url, the query frontend defaults to a pull service.

The query is composed of: a log stream selector {container="query-frontend",namespace="loki-dev"} which targets the query-frontend container in the loki-dev namespace.

And the result metrics "Ingester.TotalReached 84" shows that. Our loki accesses a lot of logs, and we want to use the query frontend to ...

25.06.2021 · 一个日志流选择器 {container="query-frontend",namespace="loki-dev"}，用于过滤 loki-dev 命名空间下面的 query-frontend 容器的日志 然后后面跟着一个日志管道 |= "metrics.go" | logfmt | duration > 10s and throughput_mb < 500 ，这管道表示将筛选出包含 metrics.go 这个词的日志，然后解析每一行日志提取更多的表达并进行过滤

23.10.2020 · Query frontend-- Query frontend是一项可选服务，可提供查询器的API终结点，并可用于加速读取路径。当Query frontend就位时，应将传入的查询请求定向到Query frontend，而不是Querier。为了执行实际查询，集群中仍将需要Querier服务。

Kubernetes Query Frontend Example Disclaimer This aims to be a general purpose ... It's a common occurrence to start running Grafana Loki as a single binary ...

Siavash Hello Community, I hope you are all safe. Siavash I've been trying to get Loki's query-frontend to work in GRPC ...

The query is composed of: a log stream selector {container="query-frontend",namespace="loki-dev"} which targets the query-frontend container in the loki-dev namespace.

21.09.2020 · query_frontend拆分查询请求是通过queryrange.split_queriers_by_interval决定的。如果将它设置为1h，query_frontend会将一天的查询分解为24个一小时的查询，将其分发给querier，然后将返回的数据再做日志聚合。 这在生产环境中非常有用，小白强烈建议开启。

而 Loki 则恰恰相反，Loki 不会对日志数据建立全文索引，取而代之的是对非结构化日志数据进行压缩存储，并且只对日志数据的 metadata(时间戳、labels 等)建立索引，所以相比 ELK ... Query Frontend. Overrides. TableManager.

Loki comes with its very own language for querying logs called LogQL. ... Almost zero dependencies setup schema_config Query Frontend 280 lines (230 sloc) ...

Like Prometheus, but for logs. Contribute to grafana/loki development by creating an account on GitHub.

Grafana Loki日志采集初探1. ... Query frontend是一个可选的服务，提供Querier组件的API端点，可以用来加速读取路径。当Query frontend就位后，传入的查询请求应该被定向到Query frontend，而不 …

// returns the set of query-frontend IPs. service.mixin.spec.withClusterIp('None') +. // Query frontend will not become ready ...

Kubernetes Query Frontend Example. Disclaimer. This aims to be a general purpose example; there are a number of substitutions to make for it to work ...

Nov 09, 2021 · Hello! I have faced with a problem when deploying loki-distributed chart. Apparently querier tries to connect to query-frontend and fails to resolve a grpc endpoint with the following error: "failed DNS SRV record lookup" err="lookup _gr...

Mar 15, 2022 · Query Frontend HA. Grafana Loki. welsonyy March 15, 2022, 10:12am #1. Hi All, According to frontend_worker_config configuration ( here ), we need to provide the “frontend_address”, but it only support one frontend, I wonder how to do the frontend HA and does reduce the worker.

Hi. We have deployed Loki distributed (2.4.1) to Redhat Openshift on AWS. here is the current components as well as their replica and resources: Ingester: 3 pods, 600m CPU, 5Gi ram, and 10Gi storage each. distributor: 1 pod, 200m CPU, 700Mi ram. Querier: 2 pods, 1500m CPU, 5Gi ram, and 10Gi storage each. Query Frontend: 3 pods, 200m CPU, 500Mi RAM.

仅适用于即时日志查询 max_look_back_period: 60s # 配置 querier worker，采集并执行由 query-frontend 排队的查询 frontend_worker: frontend_address: "frontend-loki-grpc:9095" parallelism: 10 dns_lookup_duration: 30s grpc_client_config: max_recv_msg_size: 104857600 max_send_msg_size: 16777216 use_gzip_compression: false rate ...

1.4.3 Query frontend（查询前端） Query frontend是一个可选的服务，提供Querier组件的API端点，可以用来加速读取路径。当Query frontend就位后，传入的查询请求应该被定向到Query frontend，而不是Querier。为了执行实际的查询，在集群中仍然需要Querier组件。

Query frontend 是可选组件，其提供了 Querier 的 API 并可用于读加速。 当系统中有该组件时，所有的读请求都会经由 Query frontend 而非 Querier 处理。 Query frontend 是无状态的，生产环境中推荐 2 副本来达到调度的均衡。 Query frontend 会对请求做一些调整，并将请求放入一个内部的队列中。 在该场景中，Querier 作为 workers 不断从队列中获取任务、执行任务，并将结果返回给 Query …