Aliaksandr Valialkin
d261fa2885
app/vmselect/promql: add deriv_fast function for calculating fast derivative
...
`deriv_fast` calculates derivative based on the first and the last point on the interval
instead of calculating linear regression based on all the data points on the interval.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73
2019-06-21 23:05:39 +03:00
Aliaksandr Valialkin
5b47c00910
app/vmselect/promql: use linear regression in deriv func like Prometheus does
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73
2019-06-21 22:59:46 +03:00
Aliaksandr Valialkin
9e1119dab8
app/vmselect/promql: ajdust data model to the model used in Prometheus
...
Do not take into account data points on the range `[timestamp .. timestamp+step)`
when calculating value on the given `timestamp`.
Use only data points from the past when performing these calculations like Prometheus does.
This should reduce discrepancies between results returned by VictoriaMetrics
and results returned by Prometheus.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71
2019-06-21 21:54:48 +03:00
Aliaksandr Valialkin
47a3228108
app/vmselect/promql: do not strip __name__ form time series after binary comparison operation
...
Example:
foo > 10
Would leave `foo` name for all the matching time series on the left.
2019-06-21 13:09:38 +03:00
Aliaksandr Valialkin
973e4b5b76
app/vmselect/promql: remove unused func keepLastValue; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69
2019-06-20 14:35:11 +03:00
Aliaksandr Valialkin
7aadec8e3c
app/vmselect/promql: typo fix; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69
2019-06-20 14:33:47 +03:00
Aliaksandr Valialkin
beb479b8f1
app/vmselect/promql: use dynamic limit on memory for concurrent queries
2019-06-12 23:18:44 +03:00
Aliaksandr Valialkin
a8db528930
app/vmselect/promql: merge non-overlapping duplicate time series in group_left and group_right joins
2019-06-12 20:32:32 +03:00
Aliaksandr Valialkin
15613e5338
app/vmselect/promql: swap binary operation with modifier in the error message for improved readability
2019-06-12 17:14:39 +03:00
Aliaksandr Valialkin
3237d0309c
app/vmselect/promql: list a sample of duplicate time series in the error message for group_left or group_right
...
This should improve troubleshooting for complex queries involving `group_left` and `group_right` modifiers.
2019-06-12 16:57:37 +03:00
Aliaksandr Valialkin
1c33b5937e
app/vmselect/promql: prevent from count_values explosion of timeseries, which could result in OOM
2019-06-11 01:03:13 +03:00
Aliaksandr Valialkin
8bb6bc986d
app/vmselect/promql: skip superflouos timestamps copying in count_values
2019-06-11 00:44:01 +03:00
Aliaksandr Valialkin
d2be567482
app/vmselect/promql: remove superflouos timeseries copy in histogram_quantile func
2019-06-11 00:39:41 +03:00
Aliaksandr Valialkin
7e7d4d5275
app/vmselect/promql: remove superflouos timeseries copy in union func
2019-06-11 00:35:20 +03:00
Aliaksandr Valialkin
bf9782eaf6
app/vmselect/promql: skip NaN values in count_values func
2019-06-10 22:42:32 +03:00
Aliaksandr Valialkin
c1f18ee48d
app/vmselect/promql: properly handle {__name__ op "string"} queries
...
This has been broken in 7294ef333ad26f4f6578b783e97649e58b1f8945 .
2019-06-07 02:02:04 +03:00
Aliaksandr Valialkin
1458450dba
app/vmselect/promql: return the correct time series from quantile
...
Previously arbitrary time series could be returned from `quantile`
depending on sort order for the last data point in the selected range.
Fix this by returning the calculated time series.
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/55
2019-06-06 17:07:31 +03:00
Aliaksandr Valialkin
53ea90865d
app/vmselect/promql: add -search.disableCache flag for disabling response caching
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This may be useful for data back-filling, when the response caching
could interfere badly with newly added data points with timestamps
in the past.
2019-06-04 17:30:45 +03:00
Aliaksandr Valialkin
f2cf5d8e36
app/vmselect/promql: allow escaping identifiers with \ and \xXX
...
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/42
2019-05-31 17:35:17 +03:00
Aliaksandr Valialkin
27f0d098bd
app/victoria-metrics: add make victoria-metrics-arm64 rule for building GOARCH=arm64 binary
2019-05-29 23:07:14 +03:00
Aliaksandr Valialkin
5262aae5da
app/vmselect/promql: misspeling fix
2019-05-25 21:53:11 +03:00
Aliaksandr Valialkin
54fb8b21f9
all: fix misspellings
2019-05-25 21:51:11 +03:00
Aliaksandr Valialkin
d6523ffe90
Makefile: add -s flag to go fmt in make fmt command
2019-05-25 21:43:35 +03:00
Aliaksandr Valialkin
5cbd4cfca9
app/vmselect: log slow queries if their execution time exceeds -search.logSlowQueryDuration
2019-05-24 16:12:31 +03:00
Aliaksandr Valialkin
d15d0127fe
app/vmselect/promql: add alias(q, name) function that sets the given name to all the time series in q
2019-05-24 02:41:45 +03:00
Aliaksandr Valialkin
fb140eda33
app/vmselect/promql: add label_transform(q, label, regexp, replacement) function for replacing all the occurences of regexp with replacement in the given label for q
2019-05-23 16:26:19 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
