metricsql | Standalone PromQL and MetricsQL parser | Parser library

by VictoriaMetrics Go Version: v0.56.1 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | metricsql Summary

metricsql is a Go library typically used in Utilities, Parser, Prometheus applications. metricsql has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Package metricsql implements MetricsQL and PromQL parser in Go.

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metricsql has a low active ecosystem.

It has 137 star(s) with 24 fork(s). There are 12 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 1 have been closed. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of metricsql is v0.56.1

Quality

metricsql has no bugs reported.

Security

metricsql has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

metricsql is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

metricsql releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed metricsql and discovered the below as its top functions. This is intended to give you an instant insight into metricsql implemented functionality, and help decide if they suit your requirements.

expandWithExpr expands an expression to a BinaryOpExpr .
simplifyConstants recursively simplifies the constant expressions .
binaryOpEvalNumber evaluates binary op .
scanPositiveNumber returns the value of a numeric number .
getMetricExprForOptimization returns the MetricExpr if possible .
expandModifierArgs expands args and returns a slice of args .
removeParensExpr removes all parens from e .
scanSingleDuration returns the number of milliseconds in s .
Optimize evaluates an Expr .
DurationValue parses s as a duration value .

Get all kandi verified functions for this library.

metricsql Key Features

No Key Features are available at this moment for metricsql.

metricsql Examples and Code Snippets

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Community Discussions

Trending Discussions on metricsql

Linear interpolation in PromQL or MetricsQL

QUESTION

Linear interpolation in PromQL or MetricsQL

Asked 2020-Aug-11 at 16:19

I am evaluating VictoriaMetrics for an IoT application where we sometimes have gaps in a series due to hardware or communication issues. In some time series reporting situations it is helpful for us to interpolate values for the missing time intervals. I see that MetricsQL (which extends PromQL) has a keep_last_value() function that will fill gaps by holding the last observed value until a new one appears (which will be helpful to us) but in some situations a linear interpolation between the values before and after the gap is a more realistic estimate for the missing portion. Is there a function in PromQL or MetricsQL that will do linear interpolation of missing data in a series, or is it possible to construct a more complex query that will achieve this?

Clarifying the desired interpolation

What I would like is a simple interpolation between the points immediately before and after the gap; this is, I believe, what TimescaleDB's interpolate() function does. In other words, if my time series is:

...

ANSWER

Answered 2020-Jul-08 at 22:21

Final answer

Use the interpolate function, now available in VictoriaMetrics starting from v1.38.0.

Original suggestion

This does not achieve the exact interpolation requested in the revised question, but may be useful for others with slightly different requirements

Try combining predict_linear function with default operator from MetricsQL in the following way:

Source https://stackoverflow.com/questions/62565021

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install metricsql

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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