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83 commits

Author SHA1 Message Date
Aliaksandr Valialkin
603b34edbd app/vmselect/promql: properly preserve metric name after applying functions in any case from transformFuncsKeepMetricGroup 2019-07-09 23:10:49 +03:00
Aliaksandr Valialkin
d6ec95693d app/vmselect/prometheus: typo fix 2019-07-07 23:34:04 +03:00
Aliaksandr Valialkin
36636c1f6f app/vmselect/prometheus: handle minTime and maxTime values that may be set by Promxy or Prometheus client 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/88
 2019-07-07 21:53:52 +03:00
Aliaksandr Valialkin
bba07d05fe app/vmselect/promql: remove empty timeseries left after topk call 2019-07-04 19:43:07 +03:00
Aliaksandr Valialkin
41f512af1c all: add vm_data_size_bytes metrics for easy monitoring of on-disk data size and on-disk inverted index size 2019-07-04 19:43:04 +03:00
Aliaksandr Valialkin
512a627855 app/vmselect/prometheus: update adjustLastPoints function 
- Do not overwrite last points by the previous NaNs, since this may result in empty time series.
- Overwrite the last 2 points instead of 3. This should be enough in most cases.
 2019-07-04 09:30:56 +03:00
Aliaksandr Valialkin
858746fa6c app/vmselect/promql: gracefully handle duplicate timestamps in irate and rollup_rate funcs 
Previously such timestamps result in `+Inf` results. Now the previous timestamp is used
for the calculations.
 2019-07-03 12:41:30 +03:00
Aliaksandr Valialkin
a3abed80ff app/vmselect: do not return empty time series in /api/v1/query result 2019-07-01 17:16:26 +03:00
Aliaksandr Valialkin
c3c60bee45 app/vmselect: add -search.denyPartialResponse flag for disabling partial responses if some of vmstorage nodes are unavailable 
Also accept `deny_partial_response` query arg in Prometheus API handlers. If it is set to true,
then return error if some of vmstorage nodes are unavailable.
 2019-06-30 01:27:07 +03:00
Aliaksandr Valialkin
72a3050c41 app/vmselect/promql: consistency renaming: candlestick -> rollup_candlestick 2019-06-29 03:13:25 +03:00
Aliaksandr Valialkin
391bc8bf38 app/vmselect: fix 32bit arm build 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/83
 2019-06-27 19:37:17 +03:00
Aliaksandr Valialkin
96342f1422 app/vmselect: add candlestick(m[d]) func for returning open, close, low and high rollups on the given time range d 
This function is frequently used in financial apps. See https://en.wikipedia.org/wiki/Candlestick_chart
 2019-06-27 18:46:54 +03:00
Jiri Tyr
e7a0bf1a71 Change the default influxMeasurementFieldSeparator 2019-06-26 13:22:54 +03:00
Aliaksandr Valialkin
d5cb9fddd8 app/vminsert: fix inifinite loop when reading two lines without newline in the end 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/82
 2019-06-26 02:52:56 +03:00
Aliaksandr Valialkin
4f54bcf90b app/vmselect/promql: suppress error when template func is used inside modifier list. Just leave it as is 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/78
 2019-06-25 20:43:57 +03:00
Aliaksandr Valialkin
d0bf4393a9 app/vmselect/promql: increase default value for -search.maxPointsPerTimeSeries from 10k to 30k 
This may be required for subqueries with small steps. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/77
 2019-06-24 22:53:25 +03:00
Aliaksandr Valialkin
334cf253c7 app/vmselect/promql: adjust value returned by linearRegression to the end of time range like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71
 2019-06-24 22:46:03 +03:00
Aliaksandr Valialkin
14cd628948 app/vmselect/promql: add sum2 and sum2_over_time, geomean and geomean_over_time funcs. 
These functions may be useful for statistic calculations.
 2019-06-24 16:45:00 +03:00
Aliaksandr Valialkin
0eac538fc8 app/vmselect/promql: adjust the provided window only for range functions with dt in denominator 
This should fix range function calculations such as `changes(m[d])` where `d` is smaller
than the scrape interval.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72
 2019-06-23 19:27:25 +03:00
Aliaksandr Valialkin
ec57e59154 app/vmselect/promql: use deriv_fast instead of deriv in ttf, since deriv calculations have been changed recently 2019-06-23 15:54:12 +03:00
Aliaksandr Valialkin
516062b162 app/vmselect/promql: adjust ttf calculation, so deriv(freev) for freev=m[d] could be properly calculated 2019-06-23 14:31:36 +03:00
Aliaksandr Valialkin
a4e040f5ef app/vmselect/promql: typo fixes in comments 2019-06-21 23:22:54 +03:00
Aliaksandr Valialkin
c05d443791 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 23:05:48 +03:00
Aliaksandr Valialkin
98eafdbd58 app/vmselect/promql: use linear regression in deriv func like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73
 2019-06-21 22:54:34 +03:00
Aliaksandr Valialkin
f334908c22 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 21:55:25 +03:00
Aliaksandr Valialkin
837e349b7d 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 13:08:02 +03:00
Aliaksandr Valialkin
e84b7641ef app/vmselect/promql: remove unused func keepLastValue; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:35:19 +03:00
Aliaksandr Valialkin
db042bf6d6 app/vmselect/promql: typo fix; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:33:52 +03:00
Aliaksandr Valialkin
3838d224d5 app/vminsert/opentsdb: remove unused const maxReadPacketSize; update https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:30:02 +03:00
Aliaksandr Valialkin
a3a53647ba app/vmselect/prometheus: return better error messages on missing args to /api/v1/* 2019-06-20 14:07:44 +03:00
Aliaksandr Valialkin
a0c22a6830 app/vmstorage: add vm_cache_entries{type="storage/hour_metric_ids"} metric for tracking active time series count 2019-06-19 18:37:38 +03:00
Aliaksandr Valialkin
d4ed6189d4 app/vminsert/graphite: allow skipping timestamps in Graphite plaintext protocol 
In this case VictoriaMetrics uses the ingestion time as a timestamp.
 2019-06-18 19:05:46 +03:00
Aliaksandr Valialkin
e40224d5de lib/flagutil: add NewArray helper func 2019-06-18 10:44:09 +03:00
Aliaksandr Valialkin
3b16d49514 app/vminsert/influx: add -influxSkipSingleField flag for using {measurement} instead of {measurement}{separator}{field_name} for Influx lines with a single field 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/66
 2019-06-17 19:05:46 +03:00
Aliaksandr Valialkin
5f0b3589b2 app/vminsert/influx: add -influxMeasurementFieldSeparator flag for the ability to change separator for {measurement}{separator}{field_name} metric name 2019-06-14 09:57:13 +03:00
Aliaksandr Valialkin
947bc16f8c app/vmselect/promql: use dynamic limit on memory for concurrent queries 2019-06-12 23:18:23 +03:00
Aliaksandr Valialkin
8567e3463d app/vmselect/promql: merge non-overlapping duplicate time series in group_left and group_right joins 2019-06-12 20:33:01 +03:00
Aliaksandr Valialkin
88005237f4 app/vmselect/promql: swap binary operation with modifier in the error message for improved readability 2019-06-12 17:14:33 +03:00
Aliaksandr Valialkin
a71381ad2a 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 16:57:34 +03:00
Aliaksandr Valialkin
18d6f293f7 lib/fs: consolidate *RemoveAll* funcs into a single MustRemoveAll func 
The func syncs parent dir in order to persist directory removal
in the event of power loss
 2019-06-12 01:55:18 +03:00
Aliaksandr Valialkin
3437c30180 all: try hard removing directory with contents 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61
 2019-06-11 01:58:08 +03:00
Aliaksandr Valialkin
eea7da8e0c app/vmselect/promql: prevent from count_values explosion of timeseries, which could result in OOM 2019-06-11 01:03:18 +03:00
Aliaksandr Valialkin
e87a602209 app/vmselect/promql: skip superflouos timestamps copying in count_values 2019-06-11 00:44:09 +03:00
Aliaksandr Valialkin
ec84febc1c app/vmselect/promql: remove superflouos timeseries copy in histogram_quantile func 2019-06-11 00:39:35 +03:00
Aliaksandr Valialkin
1fab34fb5c app/vmselect/promql: remove superflouos timeseries copy in union func 2019-06-11 00:35:09 +03:00
Aliaksandr Valialkin
a6f368499d app/vmselect/promql: skip NaN values in count_values func 2019-06-10 22:42:41 +03:00
Aliaksandr Valialkin
945894e049 app/vmselect: properly handle empty label (aka __name__) in LabelEntries handler 2019-06-10 19:55:02 +03:00
Aliaksandr Valialkin
75a0acf72d app/vmselect: add /api/v1/labels/count handler for quick detection of labels with the maximum number of distinct values 2019-06-10 19:54:55 +03:00
Aliaksandr Valialkin
547bcdce63 app/vmstorage: enable compression of responses to vmselect by default 
This should save vmstorage => vmselect network bandwidth in common case
when recently added data is queried.
 2019-06-10 14:54:59 +03:00
Aliaksandr Valialkin
d54f5fec0b lib/storage: skip adaptive searching for tag filter matching the minimum number of metrics if the identical previous search didn't found such filter 
This should improve speed for searching metrics among high number of time series
with high churn rate like in big Kubernetes clusters with frequent deployments.
 2019-06-10 14:07:47 +03:00