prometheus

Commit Graph

Author	SHA1	Message	Date
Brian Brazil	88ca82304c	Make topk/bottomk prefer returning real numbers over NaN.	9 years ago
James Sanford	5b53262b7a	promql: Add clamp_max/clamp_min functions.	9 years ago
Brian Brazil	5740a8fade	promql: Remove deprecated 2nd argument to delta() This change is breaking, use increase() instead. I'm not cleaning up the function in this PR, as my solution to #581 will rewrite and simplify increase/rate/delta.	9 years ago
Brian Brazil	f08abdb48b	promql: Add irate() function irate is a rate function that only looks at the most recent two data points, and calucaltes a per-second value from that. This produces much more granular graphs for fast moving data, and works sanely across many scrape intervals. It doesn't do so well for slowly moving data.	9 years ago
Fabian Reinartz	e005f939fd	Fix scalar construction in function	9 years ago
Fabian Reinartz	eca41f5319	Run gofmt	9 years ago
Brian Brazil	9b382647b5	Remove optional vector() 2nd argument	9 years ago
Brian Brazil	69f5fa0c1e	promql: Add vector function. Currently the only way to convert a scalar to a vector is to use absent(), which isn't very clean. This adds a vector() function that's the inverse of scalar() and lets your optionally set labels. Example usage would be vector(time() % 86400) < 3600 to filter to only the first hour of the day.	9 years ago
Julius Volz	61c42c8da0	Change relabel_replace() to do full-string matches. THIS IS A BREAKING CHANGE. Fixes part of https://github.com/prometheus/prometheus/issues/996	9 years ago
Fabian Reinartz	d6b8da8d43	Switch promql types to common/model	9 years ago
Fabian Reinartz	1535ef1457	Replace metric.SamplePair with model.SamplePair	9 years ago
Fabian Reinartz	306e8468a0	Switch from client_golang/model to common/model	9 years ago
Julius Volz	27ed874358	Implement label_replace() Implements part of https://github.com/prometheus/prometheus/issues/959.	9 years ago
Brian Brazil	d6a80c2b76	promql: Add support for predict_linear(my_timeseries[1h], 7200) This will give a prediction for the value of my_timeseries in 2 hours, based on the last hour of data.	9 years ago
Brian Brazil	f34de493d5	Add increase() function, to replace delta(..., 1). This calculates how much a counter increases over a given period of time, which is the area under the curve of it's rate. increase(x[5m]) is equivilent to rate(x[5m]) * 300.	10 years ago
Julius Volz	d44a89c6e8	Implement changes() function. changes() takes a range vector and returns the number of times a value has changed in the given time window for each time series as an instant vector.	10 years ago
Julius Volz	6f33ed9e59	Add resets() function to count counter resets. resets() returns for every range vector element how many counter resets there have been in the specified range.	10 years ago
Fabian Reinartz	5602328c7c	Refactor query evaluation. This copies the evaluation logic from the current rules/ package. The new engine handles the execution process from query string to final result. It provides query timeout and cancellation and general flexibility for future changes. functions.go: Add evaluation implementation. Slight changes to in/out data but not to the processing logic. quantile.go: No changes. analyzer.go: No changes. engine.go: Actually new part. Mainly consists of evaluation methods which were not changed. setup_test.go: Copy of rules/helpers_test.go to setup test storage. promql_test.go: Copy of rules/rules_test.go.	10 years ago
Fabian Reinartz	32b7595c47	Create promql package with lexer/parser. This commit creates a (so far unused) package. It contains the a custom lexer/parser for the query language. ast.go: New AST that interacts well with the parser. lex.go: Custom lexer (new). lex_test.go: Lexer tests (new). parse.go: Custom parser (new). parse_test.go: Parser tests (new). functions.go: Changed function type, dummies for parser testing (barely changed/dummies). printer.go: Adapted from rules/ and adjusted to new AST (mostly unchanged, few additions).	10 years ago

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69 Commits (cc917aee7f95fb1fe6601a8c26c6ea83f7aa6dba)