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305 commits

Author SHA1 Message Date
Aliaksandr Valialkin
f22aefdb16 app/vmselect/promql: log when rollupResult cache is cleared 2020-02-21 20:06:53 +02:00
Aliaksandr Valialkin
d5c2a0ce64 app/vmselect: add -search.cacheTimestampOffset command-line flag 
This flag can be used for removing gaps on graphs if the difference between the current time
and the timestamps from the ingested data exceeds 5 minutes.

This is the case when the time between data sources and VictoriaMetrics is improperly synchronized.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/312
 2020-02-21 14:02:15 +02:00
Aliaksandr Valialkin
c70822db50 app/vmselect: add /internl/resetRollupResultCache handler for resetting response cache 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/312
 2020-02-21 14:02:12 +02:00
Aliaksandr Valialkin
afecb34491 app/vmstorage: limit the maximum error message size before sending it to client 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/315
 2020-02-13 17:33:12 +02:00
Aliaksandr Valialkin
846d7fa7e9 app/vmselect: add sort_by_label(q, label) and sort_by_label_desc(q, label) functions 
This is implementation of https://github.com/prometheus/prometheus/pull/1533 for VictoriaMetrics.
 2020-02-13 17:01:50 +02:00
Aliaksandr Valialkin
347aaba79d lib/{storage,mergeset}: use time.Ticker instead of time.Timer where appropriate 
It has been appeared that time.Timer was used in places where time.Ticker must be used instead.
This could result in blocked goroutines as in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/316 .
 2020-02-13 13:21:48 +02:00
Aliaksandr Valialkin
6e0013ca39
app/vmselect/prometheus: typo fix in -latencyOffset description 2020-02-12 14:00:38 +02:00
Edouard Hur
e8f92a4ee8
Cluster - prometheus metrics fix (#314) 
* add missing '/{}' in prom query range requests

* fix missing leading '/' on prom lavelValuesErrors path
 2020-02-10 22:15:21 +02:00
Aliaksandr Valialkin
1010a57882 all: allow setting flags via environment vars 
Now flags can be set via environment vars with the same names as flags.
Command-line flags override flags set via env vars.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/311
 2020-02-10 13:31:21 +02:00
Aliaksandr Valialkin
ea66212c93 lib/storage: move -dedup.minScrapeInterval flag outside lib/storage, so it doesnt show up in vminsert in cluster version 2020-02-10 13:07:25 +02:00
Aliaksandr Valialkin
e6d9ea3094 app/vmselect/promql: do not add step to range end, since this hack became obsolete since commit 9e1119dab8 2020-02-05 21:23:44 +02:00
Aliaksandr Valialkin
4a1de7fee9 app/vmselect/promql: properly adjust time range for data to select 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-05 21:23:43 +02:00
Aliaksandr Valialkin
8e77b54846 app/vmselect: unconditionally offset -step to rollup_candlestick. This makes results more consistent 2020-02-04 23:31:47 +02:00
Aliaksandr Valialkin
ce38b176bc app/vmselect/promql: automatically apply offset -step to rollup_candlestick function in order to obtain the expected OHLC results 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-04 23:24:04 +02:00
Aliaksandr Valialkin
4f7116d1ee app/vmselect/promql: adjust rollup_candlestick calculations to the exepcted results 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-04 22:43:28 +02:00
Aliaksandr Valialkin
ccd3aa4f15 app/vmselect: take into account the time the requests wait in the queue if -search.maxConcurrentRequests is exceeded 
This will prevent from excess CPU usage for timed out queries.
 2020-02-04 16:20:48 +02:00
Aliaksandr Valialkin
e6bf88a4d4 app/vmselect: add a placeholder for /api/v1/metadata, which could be requested by Grafana 
See https://prometheus.io/docs/prometheus/latest/querying/api/#querying-metric-metadata

VictoriaMetrics doesn't collect any metadata for metrics, so just return empty response.
 2020-02-04 15:56:01 +02:00
Aliaksandr Valialkin
7cde594696 all: do not clash flag description with back-quoted flag types 
See https://golang.org/pkg/flag/#PrintDefaults for more details.
 2020-02-04 15:56:01 +02:00
Aliaksandr Valialkin
45bc6c62f2 app/vmselect/promql: adjust and and unless binary operator handling to be consistent with Prometheus 2020-01-31 18:52:51 +02:00
Aliaksandr Valialkin
e3adc095bd all: add -dedup.minScrapeInterval command-line flag for data de-duplication 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/86
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/278
 2020-01-31 01:18:54 +02:00
Aliaksandr Valialkin
cb5c39ee70 lib/fs: optimize small reads for ReaderAt.MustReadAt by reading from memory-mapped space instead of reading from file descriptor 
This should improve performance when reading many small blocks.
 2020-01-30 15:16:16 +02:00
Aliaksandr Valialkin
4ed5e9a7ce lib/storage: pre-fetch metricNames for the found metricIDs in Search.Init 
This should speed up Search.NextMetricBlock loop for big number of found time series.
 2020-01-30 15:16:16 +02:00
Aliaksandr Valialkin
170c1c3a4e app/vmselect/promql: add keep_next_value(q) for filling gaps with the next non-empty value 2020-01-29 00:48:14 +02:00
Aliaksandr Valialkin
a9c1d5b351 app/vminsert: moved -maxInsertRequestSize command-line flag out of lib/prompb in order to prevent its inclusion in vmselect and vmstorage apps 2020-01-28 22:53:50 +02:00
Aliaksandr Valialkin
b28c9a3944 app/vmselect/promql: return expected results from increase() over the beginning of time series, which start from big value 
Examples for such counters: OS-level counters for network or cpu stats.
 2020-01-28 16:31:05 +02:00
Aliaksandr Valialkin
3e304890a6 app/vmselect/promql: fix panic on a single zero vmrange bucket in prometheus_buckets() function 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/296
 2020-01-27 18:05:12 +02:00
Aliaksandr Valialkin
4d70a81e18 app/vminsert: do not drop pending rows if all the vmstorage backends are unavailable 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/294
 2020-01-24 22:10:10 +02:00
Aliaksandr Valialkin
0cda6afa8e app/vminsert: move ingestion protocol parsers to lib/protoparser, so they could be re-used in the upcoming vmagent 2020-01-24 16:55:18 +02:00
Aliaksandr Valialkin
ea53a21b02 all: consistently log durations in seconds with millisecond precision 
This should improve logs readability
 2020-01-22 18:35:24 +02:00
Aliaksandr Valialkin
e1a264173a app/vmselect: mention the original query and time range in error messages 
This should simplify debugging invalid or heavy queries.
 2020-01-22 17:34:35 +02:00
Aliaksandr Valialkin
e127173984 app/vmselect: mention command-line flag, which could be used for adjusting query timeouts, in timeout errors 2020-01-22 15:53:42 +02:00
Aliaksandr Valialkin
f3b9f8b823 app/vmselect/prometheus: increase default value -maxExportDuration to 30 days, since 10 minutes beat users exporting bit amounts of data 2020-01-22 15:53:41 +02:00
Aliaksandr Valialkin
40e564eb9c app/vmselect/promql: add range_over_time(m[d]) function for calculating value range for m over d 2020-01-21 19:05:29 +02:00
Aliaksandr Valialkin
ecddba30fe app/vminsert/netstorage: increase timeout for pushing data from vminsert to vmstorage by 3x 
Our clients report that the previous timeout could lead to frequent errors when
vmstorage starts background merge for big parts on slow HDD.
 2020-01-21 18:21:49 +02:00
Aliaksandr Valialkin
9eaa2ab871 app/vmselect/promql: add label_match(q, label, regexp) and label_mismatch(q, label, regexp) functions for filtering out time series with labels matching the given regexp 2020-01-21 15:00:35 +02:00
Aliaksandr Valialkin
cbd0452317 app/vminsert: increase default value for -insert.maxQueueDuration from 30s to 60s 
This should help catching up with high ingestion rate after VictoriaMetrics restart.
 2020-01-18 14:39:30 +02:00
Aliaksandr Valialkin
2084921e64 all: use github.com/klauspost/compress/gzip instead of compress/gzip 
`github.com/klauspost/compress/gzip` is more optimized than `compress/gzip`.
This gives better gzip compression and decompression speeds.
 2020-01-17 23:59:17 +02:00
Aliaksandr Valialkin
54db08a60f app/vmselect/netstorage: make fmt 2020-01-17 17:46:20 +02:00
Aliaksandr Valialkin
d21cc2d16a app/vmselect/netstorage: limit the maximum size for in-memory buffer for temporary blocks file 
This should reduce memory usage on systems with more than 8GB RAM.
 2020-01-17 16:28:28 +02:00
Aliaksandr Valialkin
b05f6cf11c app/vmselect: limit the default value for -search.maxConcurrentRequests, so it plays well on systems with more than 16 vCPUs 
A single heavy request can saturate all the available CPUs, so let's limit the number of concurrent requests to lower value.
This will give more chances for executing insert path.
 2020-01-17 16:16:43 +02:00
Aliaksandr Valialkin
a9f683423c app/{vminsert,vmselect}: improve error messages when VictoriaMetrics cannot handle too high number of concurrent inserts / selects 2020-01-17 16:16:43 +02:00
Aliaksandr Valialkin
4b16b7fd11 all: mention command-line flags used for limiting the incoming request size in error messages 
This should improve error logs usability.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/287
 2020-01-16 13:06:43 +02:00
Aliaksandr Valialkin
ce0b602405 app/vmselect/promql: fix panic on sum(aggr_over_time(...)) with incorrect number of args 2020-01-15 16:26:16 +02:00
Aliaksandr Valialkin
bcd3f0c5bd app/vmselect/promql: add hoeffding_bound_upper(phi, m[d]) and hoeffding_bound_lower(phi, m[d]) functions 
These functions can be used for calculating Hoeffding bounds
for `m` over `d` time range and for the given `phi` in the range `[0..1]`.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/283
 2020-01-11 14:47:13 +02:00
Aliaksandr Valialkin
fc01b11ddc app/vmselect/promql: return continuous values for min_over_time and max_over_time when step is smaller than scrape_interval 2020-01-11 12:47:57 +02:00
Aliaksandr Valialkin
16fb128bbc app/vmselect/promql: do not take into account the previous point before time window in square brackets for min_over_time, max_over_time, rollup_first and rollup_last functions 
This makes the behaviour for these functions similar to Prometheus when processing broken time series with irregular data points
like `gitlab_runner_jobs`. See https://gitlab.com/gitlab-org/gitlab-exporter/issues/50 for details.
 2020-01-11 00:26:11 +02:00
Aliaksandr Valialkin
1c445bf7eb vendor: update github.com/valyala/fastjson from v1.4.2 to v1.4.5 
This should fix parsing Inf values in `/api/v1/import`. The previous attempt to fix this in VictoriaMetrics v1.32.1 was unsuccessful.
 2020-01-10 23:14:34 +02:00
Aliaksandr Valialkin
adc36d00b7 app/vmselect/promql: properly handle aggr(aggr_over_time(...)) 2020-01-10 21:57:11 +02:00
Aliaksandr Valialkin
87a106702b app/vmselect/promql: add aggr_over_time(("aggr_func1", "aggr_func2", ...), m[d]) function 
This function can be used for simultaneous calculating of multiple `aggr_func*` functions
that accept range vector. For example, `aggr_over_time(("min_over_time", "max_over_time"), m[d])`
would calculate `min_over_time` and `max_over_time` for `m[d]`.
 2020-01-10 21:18:12 +02:00
Aliaksandr Valialkin
c314d9a219 app/vmselect/promql: add tmin_over_time(m[d]) and tmax_over_time(m[d]) functions 
These functions return timestamp in seconds for the minimum and maximum value for `m` over time range `d`
 2020-01-10 19:39:34 +02:00