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Now that we have a loki data source we can query it with the LogQL query language. In this video, we will try out many LogQL queries on the Loki data source ...

Jul 16, 2020 · Loki uses a proprietary query language called LogQL, which acts as an extended grep command-line utility -- a pattern-matching engine that supports searches with regular expressions. As with Loki, LogQL's syntax and design are similar to those of the container monitoring tool Prometheus.

LogQL is Grafana Loki's PromQL-inspired query language. Queries act as if they are a distributed grep to aggregate log sources. LogQL uses labels and operators ...

Using Loki in Grafana. Grafana ships with built-in support for Loki, an open source log aggregation system by Grafana Labs. This topic explains options, variables, querying, and other options specific to this data source. Add it as a data source and you are ready to build dashboards or query your log data in Explore.

16.07.2020 · Loki works either within the Grafana GUI or with a command-line interface (CLI). This Grafana Loki tutorial features the LogCLI command-line interface and explores LogQL, the query language used with Loki. Loki's design builds on its companion tool, Promtail, which scans the server and collects any available logs to ship off to Loki for storage.

Querying and displaying log data from Loki is available via Explore, and with the logs panel in dashboards. Select the Loki data source, and then enter a LogQL query to display your logs. A log query consists of two parts: log stream selector, and a log pipeline. For performance reasons begin by choosing a log stream by selecting a log label.

The query_scheduler_config block configures the Loki query scheduler. # Maximum number of outstanding requests per tenant per query-scheduler. # In-flight requests above this limit will fail with HTTP response status code # 429. # CLI flag: …

Language to query logs from Loki. Heavily inspired by PromQL. Distributed grep. Page 5. | 5.

Loki is a highly available logging solution. It gets described by its developers as “Like Prometheus but for Logs”.

序 本文主要研究一下loki的Query Query loki/pkg/logql/engine.go // Query is a LogQL query to be executed. type Query interface { // Exec processes the query. Exec(ctx context.Context) (Result, error) } // Result is the result of a query execution. type Result struc

Arithmetic Operators

I got help from another developer who figured it out. The key is to use backquotes: {filename=~`.*\/${logfile:regex}\.log`}. Then it works!

Adding The Data Source

Extract Labels from Log Lines at Query Time

Loki uses a proprietary query language called LogQL, which acts as an extended grep command-line utility -- a pattern-matching engine that ...

// Query contains all necessary fields to execute instant and range queries and print the results. type Query struct {. QueryString string.

25.06.2021 · Loki 查询语言 LogQL 使用. 前面我们在学习到使用 Loki 的 Ruler 进行报警的时候，使用了一种查询语言来定义报警规则，这个就是受 PromQL 的启发，Loki 自己推出的查询语言，称为 LogQL ，它就像一个 分布式的 grep ，可以聚合查看日志。. 和 PromQL 一样，LogQL 也是使用 ...

LogQL: Log Query Language. Loki comes with its very own language for querying logs called LogQL. LogQL can be considered a ...

04.12.2019 · LogQL: Log Query Language. Loki comes with its very own language for querying logs called LogQL.LogQL can be considered a distributed grep with labels for filtering.. A basic LogQL query consists of two parts: the log stream selector and a filter expression.Due to Loki’s design, all LogQL queries are required to contain a log stream selector.

16.11.2020 · Loki provides a query language called LogQL, which allows users to query logs. It is inspired by Prometheus’ PromQL and can be considered to be a distributed “grep” that aggregates log sources. One of the main differences to conventional logging systems is that Loki indexes just the metadata rather than the logs’ whole contents.