Aliaksandr Valialkin
2ebee4e741
app/{vmalert,vmagent}: improve the distribution of scrape offsets among targets / rules
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Previously only the lower part of 64-bit hash was used for calculating the offset.
This may give uneven distribution in some cases. So let's use all the available 64 bits from the hash
for calculating the offset.
2021-10-27 20:04:02 +03:00
Aliaksandr Valialkin
ad445a06cd
lib/promscrape: properly show proxy_url option value at /config page
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1755
2021-10-26 21:24:22 +03:00
Aliaksandr Valialkin
b08f51f5d3
lib/promscrape: do not populate response body to memory in stream parsing mode if -promscrape.noStaleMarkers is set
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The response body isn't used if -promscrape.noStaleMarkers is set after the commit 2876137c92https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1728#issuecomment-949630694
2021-10-22 16:49:21 +03:00
Aliaksandr Valialkin
6bc10f0623
lib/promscrape: do not sort original labels and do not intern label string for the original labels before the sharding code is executed
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This should reduce CPU and memory usage in shard mode when service discovery finds big number of scrape targets with many long labels.
See https://docs.victoriametrics.com/vmagent.html#scraping-big-number-of-targets
This is a follow-up after 9882cda8b9https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1728
2021-10-22 13:55:39 +03:00
Aliaksandr Valialkin
a8bcc3c276
lib/promscrape: reduce memory usage if -promscrape.noStaleMarkers command-line flag is passed
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Do not store in memory the response from the last scrape per each target if -promscrape.noStaleMarkers option is enabled.
This should reduce memory usage when the scraped targets return large responses.
2021-10-22 13:22:08 +03:00
Aliaksandr Valialkin
ea69eef375
lib/promscrape/discovery/kubernetes: log a warning if role: endpoints discovers more than 1000 targets per a single endpoint
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In this case `role: endpointslice` must be used instead.
See the following references:
* https://kubernetes.io/docs/reference/labels-annotations-taints/#endpoints-kubernetes-io-over-capacity
* https://github.com/kubernetes/kubernetes/pull/99975
* https://github.com/prometheus/prometheus/issues/7572#issuecomment-934779398
2021-10-19 13:22:28 +03:00
Nikolay
e84a063209
changes job source for /target api ( #1723 )
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use jobNameOriginal instead of relabeled as prometheus does
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1707
2021-10-19 09:00:05 +03:00
Aliaksandr Valialkin
fbcc8b5c7d
lib/promscrape: set honor_timestamps: true by default if this option isnt set explicitly in scrape configs
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This aligns the behavior to Prometheus - see https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config
2021-10-16 20:48:53 +03:00
Aliaksandr Valialkin
0a9be5ef9d
lib/promscrape: expose promscrape_series_limit_max_series and promscrape_series_limit_current_series metrics per each scrape target with the enabled unique series limiter
2021-10-16 19:14:13 +03:00
Aliaksandr Valialkin
99011c6b63
lib/promscrape: always initialize http client for stream parsing mode
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Stream parsing mode can be automatically enabled when scraping targets with big response bodies
exceeding the -promscrape.minResponseSizeForStreamParse , so it must be always initialized.
2021-10-16 13:19:48 +03:00
Aliaksandr Valialkin
0f4fda1bda
lib/promscrape: store the last scraped response in compressed form if its size exceeds -promscrape.minResponseSizeForStreamParse
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This should reduce memory usage when scraping targets with big response bodies.
2021-10-16 13:00:11 +03:00
Aliaksandr Valialkin
0452a8d4e8
lib/promscrape: store the full response in stream parsing mode in scrapeWork.lastScrape byte slice
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This allows sending staleness marks and properly calculate scrape_series_added metric in stream parsing mode
at the cost of the increased memory usage, since now the potentially big response is kept
in the lastScrape byte slice per each scrapeWork.
In practice the memory usage increase shouldn't be big, since the response size
is usually much smaller than the parsed metrics from this response after the relabeling,
which usually adds a big pile of target-specific labels per each metric.
2021-10-15 15:26:24 +03:00
Aliaksandr Valialkin
3e9beb0f8d
lib/promscrape/discovery/kubernetes: rename endpointslices.go -> endpointslice.go in order to be consistent with EndpointSlice struct name
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This is a follow-up for 31b42b30b6
2021-10-15 12:27:31 +03:00
Aliaksandr Valialkin
25421fa2ae
lib/promscrape: add -promscrape.minResponseSizeForStreamParse command-line option for automatic switching to stream parsing mode when scraping targets with big responses
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This should reduce memory usage when vmagent scrapes targets with non-uniform response sizes.
This is common case in Kubernetes monitoring.
2021-10-14 12:30:55 +03:00
Aliaksandr Valialkin
bee130cc78
lib/promscrape: return error if sample_limit or series_limit options are set when stream parsing mode is enabled
2021-10-14 12:30:54 +03:00
Aliaksandr Valialkin
5b7d90d178
lib/promscrape: add ability to show the original labels for discovered targets at /targets page
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1698
2021-10-13 16:44:34 +03:00
Roman Khavronenko
5dab25e8ad
lib/promscrape: make errcheck happy ( #1703 )
2021-10-13 15:11:45 +03:00
Aliaksandr Valialkin
c3a729d458
lib/promscrape: shard targets among cluster nodes after relabeling is applied
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This guarantees that targets with the same set of labels go to the same vmagent node.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1687#issuecomment-940629495
2021-10-12 17:06:37 +03:00
Aliaksandr Valialkin
aeedfe2fe2
app/vmagent: expose -promscrape.config contents at /config page as Prometheus does
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1695
2021-10-12 16:27:37 +03:00
Aliaksandr Valialkin
84aa08d93a
lib/promscrape: use Prometheus format for target labels at /targets page
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This should simplify copy-pasting the labels to/from PromQL / MetricsQL
2021-10-11 12:42:18 +03:00
Ziqi Zhao
1db3aeab36
fix some typos ( #1678 )
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Co-authored-by: 柘远 <zzq237937@alibaba-inc.com>
2021-10-06 14:43:56 +03:00
Aliaksandr Valialkin
522a404b79
lib/promscrape: reduce memory allocations in mergeLabels() after 48e3e6c8df
2021-09-30 16:56:43 +03:00
Nikolay
9be5689b3f
changes auth validation for openstack ( #1663 )
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* changes auth validation for openstack
must fix https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1655
* Apply suggestions from code review
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-09-29 00:33:38 +03:00
Aliaksandr Valialkin
d8de26bbfd
lib/promscrape: add vm_promscrape_max_scrape_size_exceeded_errors_total metric for counting of the failed scrapes due to the exceeded response size
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1639
2021-09-23 14:48:16 +03:00
Nikolay
1ab2f844a2
makes filters optional for ec2 api requests ( #1627 )
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filters can be applied only for DescribeInstances requests, like prometheus does.
related issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1626
2021-09-17 18:12:25 +03:00
Aliaksandr Valialkin
b684624f67
lib/promscrape/discovery/docker: support host networking mode
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See https://github.com/prometheus/prometheus/issues/9116
2021-09-13 13:30:55 +03:00
Aliaksandr Valialkin
6ed9f10da5
lib/promscrape/discovery/kubernetes: properly use https scheme for wildcard TLS certificates in ingress target discovery
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See https://github.com/prometheus/prometheus/issues/8902
2021-09-13 13:04:43 +03:00
Aliaksandr Valialkin
d90834da70
lib/promscrape: generate scrape_timeout_seconds metric per each scrape target in the same way as Prometheus 2.30 does
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See https://github.com/prometheus/prometheus/pull/9247
2021-09-12 15:21:26 +03:00
Aliaksandr Valialkin
279f37c9e7
lib/promscrape: make fmt
2021-09-12 13:35:21 +03:00
Aliaksandr Valialkin
6c97388dde
lib/promscrape: add ability to configure scrape_timeout and scrape_interval via relabeling
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See https://github.com/prometheus/prometheus/pull/8911
2021-09-12 13:35:20 +03:00
Aliaksandr Valialkin
09670479cd
lib/promscrape: reduce CPU usage for common case when calculating scrape_series_added metric
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Also reduce CPU usage when applying `series_limit` to scrape targets with constant set of metrics.
The main idea is to perform the calculations on scrape_series_added and series_limit
only if the set of metrics exposed by the target has been changed.
Scrape targets rarely change the set of exposed metrics,
so this optimization should reduce CPU usage in general case.
2021-09-12 12:53:45 +03:00
Aliaksandr Valialkin
c339642858
lib/promscrape: add the actual job name to the labels of promscrape_series_limit_rows_dropped_total metric
2021-09-11 11:03:38 +03:00
Aliaksandr Valialkin
5aaaa686a4
lib/promscrape: send stale markers for disappeared metrics like Prometheus does
2021-09-11 11:02:56 +03:00
Aliaksandr Valialkin
d613a018c8
lib/promscrape: add ability to set series_limit and stream_parse options via relabeling
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This allows managing these options on a per-target basis.
Typical use case: to manage these options for pods via Kubernetes annotations.
2021-09-09 18:51:23 +03:00
Aliaksandr Valialkin
b64866e64c
lib/promscrape: add scrape_ prefix to job and target labels exported by promscrape_series_limit_rows_dropped_total metric
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This is needed in order to prevent from possible clash with the corresponding (job, target) labels for the job, which scrapes this metric.
2021-09-09 17:31:04 +03:00
Aliaksandr Valialkin
c4df601f43
lib/promscrape: add the ability to limit the number of unique series per each scrape target
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The number of series per target can be limited with the following options:
* Global limit with `-promscrape.maxSeriesPerTarget` command-line option.
* Per-target limit with `max_series: N` option in `scrape_config` section.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1561
2021-09-01 16:08:12 +03:00
Aliaksandr Valialkin
146c14d879
lib/promscrape/discovery/kubernetes: return back support role: endpointslices, since it is used by VictoriaMetrics operator
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This is a follow up commit after 31b42b30b6
2021-08-29 12:37:36 +03:00
Aliaksandr Valialkin
ca61d7c82b
lib/promscrape/discovery/kubernetes: rename role: endpointslices to role: endpointslice to be consistent with Prometheus
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See 2ec6c7dbb8/discovery/kubernetes/kubernetes.go (L99)
2021-08-29 11:23:59 +03:00
Aliaksandr Valialkin
327034b54f
lib/promscrape/discovery/kubernetes: use v1 API instead of v1beta1 API for role: ingress and role: endpointslices
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This should fix service discovery for these roles in Kubernetes v1.22 and newer versions.
See https://kubernetes.io/docs/reference/using-api/deprecation-guide/#ingress-v122
The corresponding change in Prometheus - https://github.com/prometheus/prometheus/pull/9205
2021-08-29 11:23:58 +03:00
Aliaksandr Valialkin
7fdb4db73d
lib/promscrape: add ability to load scrape configs from multiple files
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1559
2021-08-26 08:51:53 +03:00
Aliaksandr Valialkin
4a2d7aec7f
lib/promscrape: expose promscrape_discovery_http_errors_total metric for tracking errors per each http_sd config
2021-08-25 13:05:29 +03:00
Aliaksandr Valialkin
67bc407747
lib/promscrape: reduce memory and CPU usage when Prometheus staleness tracking is enabled for metrics from deleted / disappeared scrape targets
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Store the scraped response body instead of storing the parsed and relabeld metrics.
This should reduce memory usage, since the response body takes less memory than the parsed and relabeled metrics.
This is especially true for Kubernetes service discovery, which adds many long labels for all the scraped metrics.
This should also reduce CPU usage, since the marshaling of the parsed
and relabeld metrics has been substituted by response body copying.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
2021-08-21 21:24:07 +03:00
Aliaksandr Valialkin
c3b24882a7
lib/promscrape: use scrapeTimestamp when storing stale markers for failed scrape
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This will make timestamps for stale markers more consistent for timestamps for other samples
2021-08-19 14:19:54 +03:00
Aliaksandr Valialkin
8ee575dee9
lib/promscrape: send stale markers for the previously scraped metrics on failed scrapes like Prometheus does
2021-08-18 22:00:46 +03:00
Aliaksandr Valialkin
5d92fafc40
app/vmselect: add -search.noStaleMarkers command-line flag for disabling stale markers handling in queries
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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 13:58:06 +03:00
Aliaksandr Valialkin
f21fad53b4
lib/promscrape: add ability to disable sending Prometheus staleness markers with -promscrape.disableStaleMarkers command-line flag
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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 13:58:05 +03:00
Aliaksandr Valialkin
db34c40aec
lib/promscrape: stop scrapers for the removed targets before starting scrapers for the added targets
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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 01:00:40 +03:00
Aliaksandr Valialkin
5f13c519ee
lib/promscrape: restore red highlighting for DOWN targets at /targets page
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1461
2021-08-15 16:04:33 +03:00
Aliaksandr Valialkin
c1f81f08d4
all: add support for Prometheus staleness markers
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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 12:13:15 +03:00
Aliaksandr Valialkin
b877538622
app/vmagent: follow-up after fe445f753b
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1491
2021-08-05 09:51:00 +03:00
