Aliaksandr Valialkin
cdc372bb98
app/vmselect: add -search.noStaleMarkers
command-line flag for disabling stale markers handling in queries
...
This option allows reducing CPU usage a bit when VictoriaMetrics is used
for collecting and processing non-Prometheus data. For example, InfluxDB line protocol, Graphite, OpenTSDB, CSV, etc.
2021-08-18 13:59:02 +03:00
Aliaksandr Valialkin
226143f31b
lib/promscrape: add ability to disable sending Prometheus staleness markers with -promscrape.disableStaleMarkers command-line flag
...
This option can be useful when vmagent consumes too much additional memory
for staleness markers functionality and when staleness markers aren't needed.
2021-08-18 13:43:21 +03:00
Aliaksandr Valialkin
db1e62495b
app/vmselect/promql: add bitmap_and(), bitmap_or() and bitmap_xor() functions to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1541
2021-08-17 13:21:21 +03:00
Aliaksandr Valialkin
03c959f1df
lib/promscrape: stop scrapers for the removed targets before starting scrapers for the added targets
...
This should prevent from possible time series overlap when old target is substituted by new target (for example, during Kubernetes deployments).
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
2021-08-17 00:55:51 +03:00
Aliaksandr Valialkin
f37b963619
app/vmalert: follow-up for 2400f85761
2021-08-16 15:20:22 +03:00
Aliaksandr Valialkin
4547d4f692
docs/CHANGELOG.md: update urls to Prometheus 2.29 release
...
Previously these urls were pointing to rc0 release
2021-08-16 14:53:38 +03:00
Aliaksandr Valialkin
ae9f923449
docs/CHANGELOG.md: typo fix: satureated -> saturated
2021-08-16 14:53:38 +03:00
Aliaksandr Valialkin
c518858145
docs/CHANGELOG.md: cut v1.64.0
2021-08-15 23:52:03 +03:00
Aliaksandr Valialkin
a0e18f06eb
lib/promscrape: restore red highlighting for DOWN targets at /targets page
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1461
2021-08-15 16:03:57 +03:00
Aliaksandr Valialkin
40a859a760
docs/CHANGELOG.md: mention the bugfix when more than 27 time series are selected at /vmui
2021-08-15 15:10:41 +03:00
Aliaksandr Valialkin
386ee5b82c
docs/CHANGELOG.md: mention that VMUI automatically fills Server URL field
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1506
2021-08-15 14:45:09 +03:00
Aliaksandr Valialkin
aefba16d5e
app/vmagent/remotewrite: expose vmagent_remotewrite_send_duration_seconds_total metric
...
This metric can be used for determining high saturation of every connection to remote storage with
an alerting query `rate(vmagent_remotewrite_send_duration_seconds_total) > 0.9s`.
This query triggers when a connection is satureated by more than 90%
2021-08-15 13:34:12 +03:00
Aliaksandr Valialkin
4401464c22
all: add support for Prometheus staleness markers
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
2021-08-13 12:10:17 +03:00
Aliaksandr Valialkin
755f65f4bc
app/vminsert: add vm_rpc_send_duration_seconds_total metric per each vminsert->vmstorage
link
...
This metric is useful for determining high link saturation with the following alerting rule:
rate(vm_rpc_send_duration_seconds_total) > 0.9s
2021-08-11 11:44:40 +03:00
Aliaksandr Valialkin
5ce531027f
docs/CHANGELOG.md: document new metrics added to vmalert at 7416fdaa8b
2021-08-05 10:13:08 +03:00
Aliaksandr Valialkin
d826352688
app/vmagent: follow-up after fe445f753b
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1491
2021-08-05 09:52:32 +03:00
Aliaksandr Valialkin
50663ba41f
lib/promscrape/discovery/gce: add __meta_gce_interface_ipv4_<name> labels as in Prometheus 2.29
...
See https://github.com/prometheus/prometheus/pull/8978
2021-08-03 16:11:49 +03:00
Aliaksandr Valialkin
3cad8b4564
lib/promscrape/discovery/ec2: add __meta_ec2_availability_zone_id
label as Prometheus 2.29 does
2021-08-03 16:11:49 +03:00
Aliaksandr Valialkin
e92fde7945
app/vmselect/promql: add present_over_time(m[d])
function, which will be available starting from Prometheus 2.29.0
...
See https://github.com/prometheus/prometheus/releases/tag/v2.29.0-rc.0 and https://github.com/prometheus/prometheus/pull/9097
2021-08-03 16:11:49 +03:00
Aliaksandr Valialkin
8a3c13fd53
docs/CHANGELOG.md: typo fix
2021-07-30 12:35:57 +03:00
Aliaksandr Valialkin
a3b4fc0474
docs/CHANGELOG.md: document d05cac6c98
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1486
2021-07-30 12:19:53 +03:00
Aliaksandr Valialkin
a1911e1330
app/vmselect/netstorage: unpack time series data in mostly local big chunks
...
This should improve performance on multi-CPU systems for queries selecting time series with big number of raw samples
2021-07-30 12:03:17 +03:00
Aliaksandr Valialkin
192dfbfd90
app/vmselect: follow-up for ed95bc9531
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1493
2021-07-29 09:53:28 +03:00
Aliaksandr Valialkin
8ee8660ac4
app/vmselect: follow-up for 626073bca8
...
* Rename -search.maxMetricsPointSearch to -search.maxSamplesPerQuery, so it is more consistent with the existing -search.maxSamplesPerSeries
* Move the -search.maxSamplesPerQuery from vmstorage to vmselect, so it could effectively limit the number of raw samples obtained from all the vmstorage nodes
* Document the -search.maxSamplesPerQuery in docs/CHANGELOG.md
2021-07-28 18:00:23 +03:00
Aliaksandr Valialkin
8481f4f004
docs/CHANGELOG.md: document 9d45b46f4c
2021-07-27 12:38:31 +03:00
Aliaksandr Valialkin
95aff47330
app/vmselect: prevent from possible deadlock when f callback blocks inside RunParallel
2021-07-26 15:47:30 +03:00
Aliaksandr Valialkin
05672ffc32
app/vmselect/promql: properly handle (a op b) default N
if (a op b)
returns NaN series
...
The result should be a series with `N` values and `a op b` labels. Previously such series has been removed from the result.
2021-07-16 01:44:58 +03:00
Aliaksandr Valialkin
f4e81aef7e
app/vmselect/netstorage: add -search.maxSamplesPerSeries
command-line option for limiting the number of samples a query can process per each series
...
This should prevent from out of memory crashes like in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1067
2021-07-15 16:03:28 +03:00
Aliaksandr Valialkin
171d44acd8
docs/CHANGELOG.md: typo fix: suffxies->suffixes
2021-07-15 15:02:20 +03:00
Aliaksandr Valialkin
61cc13c16f
docs/CHANGELOG.md: cut v1.63.0
2021-07-15 14:02:13 +03:00
Aliaksandr Valialkin
682662b2ae
lib/storage: remove cache directory if it contains reset_cache_on_startup file
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1447
2021-07-13 17:58:51 +03:00
Aliaksandr Valialkin
2df66dad7b
lib/httpserver: add is_set
label to flag
metrics
...
This label allows determining the set flags with the query `flag{is_set="true"}`
2021-07-13 15:10:13 +03:00
Aliaksandr Valialkin
a925d5a3e1
app/vmselect/promql: duration handling improvements in MetricsQL queries
...
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
2021-07-12 17:16:41 +03:00
Aliaksandr Valialkin
f3a5465ece
docs/CHANGELOG.md: document the change from bfba4c28a4
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1444
2021-07-12 12:44:06 +03:00
Aliaksandr Valialkin
f539772ca6
docs: sync with the cluster branch
2021-07-10 12:45:38 +03:00
Aliaksandr Valialkin
8c764e88f0
app/vmui: move source code from https://github.com/VictoriaMetrics/vmui to app/vmui
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1413
2021-07-09 17:15:23 +03:00
Aliaksandr Valialkin
c5f0b454f0
app/vmselect: follow-up after aa11ef6d3b
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1413
2021-07-07 17:43:35 +03:00
Aliaksandr Valialkin
6e0553c92e
lib/mergeset: cache indexBlock items only on the second request
...
This should reduce the indexdb/indexBlocks cache size, since it won't contain one-time-wonders items.
2021-07-07 15:23:06 +03:00
Aliaksandr Valialkin
ed944313b0
app/{vminsert,vmselect}: export vminsert_request_duration_seconds and vmselect_request_duration_seconds histograms
2021-07-07 13:25:21 +03:00
Aliaksandr Valialkin
766edbc421
lib/httpserver: print full requestURI in httpserver.Errorf
...
This should simplify debugging.
2021-07-07 13:09:40 +03:00
Aliaksandr Valialkin
8f973e34fb
lib/workingsetcache: properly switch to whole
mode
...
Previously the switch from `split` to `whole` mode had been performed too early,
e.g. when the current cache size became bigger than 1/4 of the allowed cache size.
Now it is performed when the current cache size becomes bigger than 1/2 of the allowed cache size.
This change can reduce memory usage for data ingestion path when big number of active time series are ingested.
2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin
888d62e40c
docs/CHANGELOG.md: document the bugfix for vm_merge_need_free_disk_space
metric at 9a83e9018d
2021-07-05 12:01:08 +03:00
Aliaksandr Valialkin
158c50c0ee
lib/promauth: reload TLS certificates from disk on every mTLS connection as Prometheus does
...
This allows updating client certificates without the need to restart vmagent and/or single-node VictoriaMetrics.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/470
2021-07-01 15:27:47 +03:00
Aliaksandr Valialkin
02ed4b8b46
docs/CHANGELOG.md: document ae485c2bfd
2021-07-01 11:51:19 +03:00
Aliaksandr Valialkin
c25b839078
lib/workingsetcache: reset the cache mode when the cache is reset
...
This should reduce memory usage if the working set is reduced after the cache reset.
2021-07-01 11:50:11 +03:00
Aliaksandr Valialkin
1b0501a09e
lib/promscrape: typo fix in /targets
output
...
The typo has been introduced in fb72a2133f
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1408
2021-06-28 21:26:37 +03:00
Aliaksandr Valialkin
008033a374
docs/CHANGELOG.md: cut v1.62.0
2021-06-25 13:29:38 +03:00
Aliaksandr Valialkin
cb5453953f
lib/promscrape: split docker and dockerswarm service discovery code bases, since they have very little in common
...
This is a follow up after c85a5b7fcb
2021-06-25 13:20:20 +03:00
Aliaksandr Valialkin
ca42410afd
docs/CHANGELOG.md: document the bugfix in increase_pure() function from the commit fb4f758715
2021-06-24 12:05:39 +03:00
Aliaksandr Valialkin
5d64ed73c5
lib/protoparser/clusternative: do not pool unmarshalWork structs, since they can occupy big amounts of memory (more than 100MB per each struct)
...
This should reduce memory usage for vmstorage under high ingestion rate when the vmstorage runs on a system with big number of CPU cores
2021-06-23 15:46:50 +03:00
Aliaksandr Valialkin
cdfae0117a
app/vmselect/promql: return the last timestamp for the max / min value from tmax_over_time()
and tmin_over_time()
function as most users expect
2021-06-23 14:19:00 +03:00
Aliaksandr Valialkin
70e2852376
docs/CHANGELOG.md: document the bugfix for incorrect stats collection for concurrently executed tag filter
...
Follow up for c22114c6f0
2021-06-23 14:05:28 +03:00
Aliaksandr Valialkin
94f3e40ab3
app/vminsert/netstorage: sort the -storageNode
list passed to vminsert
nodes
...
This should reduce resource usage (CPU, RAM, disk IO) at vmstorage nodes
if the addresses of vmstorage nodes are passed in random order to vminsert nodes.
2021-06-23 14:01:41 +03:00
Aliaksandr Valialkin
ac54f34f9e
lib/promscrape/discovery/http: follow up after e307bbb29a
2021-06-22 13:40:33 +03:00
Aliaksandr Valialkin
755040a171
lib/promscrape/discovery: support generic auth configs in Consul service discovery in the same way as Prometheus 2.28 does
2021-06-22 13:34:02 +03:00
Aliaksandr Valialkin
59e7755df9
docs/CHANGELOG.md: document the support for Consul namepsace
...
See 58a2989fe7
2021-06-22 13:34:02 +03:00
Aliaksandr Valialkin
a3262daac0
docs/CHANGELOG.md: typo fixes
2021-06-18 19:14:53 +03:00
Aliaksandr Valialkin
83a4db813e
app/vmselect: log slow requests to all the /api/v1/*
handlers if their execution time exceeds -search.logSlowQueryDuration
2021-06-18 19:04:42 +03:00
Aliaksandr Valialkin
570f36b344
app/vmctl: limit JSON line size by 10K samples ( #1394 )
...
This should reduce the maximum memory usage at VictoriaMetrics when importing time series with big number of samples.
2021-06-18 15:26:47 +03:00
Aliaksandr Valialkin
cbd9159a22
docs/CHANGELOG.md: document the reduced disk write IO usage
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338
2021-06-18 14:02:59 +03:00
Aliaksandr Valialkin
fb72a2133f
lib/promscrape: show jobs with empty scrape targets on /targets page
2021-06-18 10:53:52 +03:00
Aliaksandr Valialkin
6d17a4e12d
docs/CHANGELOG.md: document the changed -remoteWrite.queues
value
...
This is a follow-up for 0a796f7c3a
See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1385
2021-06-16 12:35:46 +03:00
Aliaksandr Valialkin
84fb59b0ba
lib/storage: move deletedMetricIDs set from indexDB to Storage
...
This makes consitent the list of deleted metricIDs when it is used from both the current indexDB and the previous indexDB (aka extDB).
This should fix the issue, which could lead to storing new samples under deleted metricIDs after indexDB rotation.
See more details at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347#issuecomment-861232136 .
Thanks to @tangqipengleoo for the initial analysis and the pull request - https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 .
This commit resolves the issue in more generic way compared to https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 .
The downside of the commit is the deletedMetricIDs set isn't cleaned from the metricIDs outside the retention. It needs app restart.
This should be OK in most cases.
2021-06-15 15:04:30 +03:00
Aliaksandr Valialkin
36d55bff66
lib/promscrape: show the number of samples collected during the last scrape at /targets and /api/v1/targets pages
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1377
2021-06-14 14:04:00 +03:00
Aliaksandr Valialkin
05bc9667c1
docs/CHANGELOG.md: document the addition of DigitalOcean service discovery
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1367
2021-06-14 13:18:19 +03:00
Aliaksandr Valialkin
2ef2e3d6f8
docs/CHANGELOG.md: cut v1.61.1
2021-06-11 13:01:31 +03:00
Aliaksandr Valialkin
c4f3fbfa5d
lib/storage: reset cache on disk during series deletion and during indexdb rotation
...
This should prevent from inconsistent behavior (aka partially missing data for some time series) after unclean shutdown.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347
2021-06-11 12:42:28 +03:00
Aliaksandr Valialkin
d979e14da2
docs/CHANGELOG.md: document the bugfix from 7adfe878e1
2021-06-11 11:28:10 +03:00
Aliaksandr Valialkin
b83a51366e
docs/CHANGELOG.md: cut v1.61.0
2021-06-09 19:04:44 +03:00
Aliaksandr Valialkin
329b6cd146
docs/CHANGELOG.md: document the enterprise bugfix for the target
property in Graphite Render API
2021-06-09 13:50:52 +03:00
Aliaksandr Valialkin
db1c548cb4
docs/CHANGELOG.md: document improvements in re-routing handling in vminsert
...
See the following commits:
* 1c09e71f5b
* 0d067eb112
* 2c6b917749
2021-06-09 13:40:37 +03:00
Aliaksandr Valialkin
ab15bf8c90
docs: document rules replay feature for vmalert
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/836
This is a follow-up for 2a259ef5e7
2021-06-09 12:27:34 +03:00
Aliaksandr Valialkin
c16edf8287
docs/CHANGELOG.md: document the bugfix, which prevents panics for aborted http requests in vmauth
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1353
This is a follow-up for 6b29b955c0
2021-06-09 12:11:53 +03:00
Aliaksandr Valialkin
78f83dc5ad
app/{vmagent,vminsert}: follow-up after 2fe045e2a4
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1343
2021-06-04 20:27:58 +03:00
Aliaksandr Valialkin
5ac25d2585
docs/CHANGELOG.md: document the bugfix from 6f19bb23a1
2021-06-04 11:53:00 +03:00
Aliaksandr Valialkin
f963f04d3d
app/vminsert: add -disableRerouting
command-line flag for disabling re-routing if some vmstorage nodes have lower performance than the others
2021-06-04 04:42:01 +03:00
Aliaksandr Valialkin
d2d746c4fc
docs/CHANGELOG.md: document that it is possible to build VictoriaMetrics components for Solaris
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1322
This is a follow-up for ddc8022702
2021-05-31 09:33:29 +03:00
Aliaksandr Valialkin
b22e380a34
app/vmauth: allow balancing the load among multiple backend nodes by specifying multiple urls in url_prefix
config
2021-05-29 01:03:37 +03:00
Aliaksandr Valialkin
60341722d5
docs: document f0c21b6300
2021-05-27 15:03:30 +03:00
Aliaksandr Valialkin
7f531e3a60
docs/CHANGELOG.md: document changes from 2233d6ed8a
and d210958fd0
2021-05-26 12:23:22 +03:00
Aliaksandr Valialkin
08234aa7a0
docs/CHANGELOG.md: cut v1.60.0
2021-05-24 15:55:08 +03:00
Aliaksandr Valialkin
f54133b200
lib/storage: do not populate MetricID->MetricName cache during data ingestion
...
This cache isn't needed during data ingestion, so there is no need in spending RAM on it.
This reduces RAM usage on data ingestion path by 30%
2021-05-24 03:02:46 +03:00
Aliaksandr Valialkin
24858820b5
docs/CHANGELOG.md: small typo fix
2021-05-23 14:15:01 +03:00
Aliaksandr Valialkin
04eb37a590
docs/CHANGELOG.md: document the addition of extra_filter_labels
at 84cc0513e1
2021-05-23 14:10:33 +03:00
Aliaksandr Valialkin
78dddfb98f
lib/promauth: follow-up after 5b8176c68e
2021-05-22 18:01:11 +03:00
Aliaksandr Valialkin
8e2985b53d
lib/fs: wait for a while before giving up on NFS file removal if the removal queue is full
...
This should reduce the probability of the panic on a highly loaded VictoriaMetrics
accepting millions of samples per second.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1313
2021-05-21 17:21:00 +03:00
Aliaksandr Valialkin
14ec2b9f26
docs/CHANGELOG.md: mention the bugfix from d626c5c2a9
...
Updates https://github.com/VictoriaMetrics/operator/issues/243
2021-05-21 16:37:14 +03:00
Aliaksandr Valialkin
c54bb73867
all: do not skip SIGHUP signal during service initialization
...
This can lead to stale or incomplete configs like in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
2021-05-21 16:34:06 +03:00
Aliaksandr Valialkin
0d3e78b9ee
docs/CHANGELOG.md: move tip to proper place
2021-05-20 17:56:03 +03:00
Aliaksandr Valialkin
ad73f226ff
app/vmstorage: add ability to limit series cardinality via -storage.maxHourlySeries
and -storage.maxDailySeries
command-line flags
2021-05-20 14:15:19 +03:00
Aliaksandr Valialkin
7e526effaa
app/vmagent: add ability to limit series cardinality on a per-hour and per-day basis
2021-05-20 13:13:40 +03:00
Aliaksandr Valialkin
3cd8606abd
docs/CHANGELOG.md: document the bugfix in vmctl import for InfluxDB lines with identical names for field and tag
...
See dcf8803bbd
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1299
2021-05-20 12:06:16 +03:00
Aliaksandr Valialkin
98e425ee09
docs/CHANGELOG.md: refer to the issue related to timezone_offset() function
2021-05-20 12:03:39 +03:00
Aliaksandr Valialkin
0842bb9294
app/vmselect/promql: add timezone_offset(tz)
function
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1306
2021-05-20 11:53:09 +03:00
Aliaksandr Valialkin
b30925738b
docs/vmalert.md: document multitenant support
...
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/740
2021-05-18 16:26:14 +03:00
Aliaksandr Valialkin
66aba00549
app/vmauth: reload -auth.config
on the request to /-/reload
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1194
2021-05-18 02:23:55 +03:00
Aliaksandr Valialkin
ede2ba5a45
docs/CHANGELOG.md: document b38edec7ee
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1293
2021-05-17 01:57:34 +03:00
Aliaksandr Valialkin
733706e6c6
lib/promscrape: reload auth tokens from files every second
...
Previously auth tokens were loaded at startup and couldn't be updated without vmagent restart.
Now there is no need in vmagent restart.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1297
2021-05-14 20:00:08 +03:00
Aliaksandr Valialkin
10a47af631
app/{vmalert,vmauth}: explicitly set MaxIdleConnsPerHost in net/http.Client.Transport
...
By default MaxIdleConnsPerHost is set to 2. This limits the possibility to re-use http keep-alive connections.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1300
2021-05-14 18:12:24 +03:00
Aliaksandr Valialkin
fc3519fa26
lib/promscrape: limit scrape_timeout
by scrape_interval
like Prometheus does
2021-05-13 16:09:45 +03:00