VictoriaMetrics/lib
Aliaksandr Valialkin 2da7dfc754
Revert c6c5a5a186 and b2765c45d0
Reason for revert:

There are many statsd servers exist:

- https://github.com/statsd/statsd - classical statsd server
- https://docs.datadoghq.com/developers/dogstatsd/ - statsd server from DataDog built into DatDog Agent ( https://docs.datadoghq.com/agent/ )
- https://github.com/avito-tech/bioyino - high-performance statsd server
- https://github.com/atlassian/gostatsd - statsd server in Go
- https://github.com/prometheus/statsd_exporter - statsd server, which exposes the aggregated data as Prometheus metrics

These servers can be used for efficient aggregating of statsd data and sending it to VictoriaMetrics
according to https://docs.victoriametrics.com/#how-to-send-data-from-graphite-compatible-agents-such-as-statsd (
the https://github.com/prometheus/statsd_exporter can be scraped as usual Prometheus target
according to https://docs.victoriametrics.com/#how-to-scrape-prometheus-exporters-such-as-node-exporter ).

Adding support for statsd data ingestion protocol into VictoriaMetrics makes sense only if it provides
significant advantages over the existing statsd servers, while has no significant drawbacks comparing
to existing statsd servers.

The main advantage of statsd server built into VictoriaMetrics and vmagent - getting rid of additional statsd server.
The main drawback is non-trivial and inconvenient streaming aggregation configs, which must be used for the ingested statsd metrics (
see https://docs.victoriametrics.com/stream-aggregation/ ). These configs are incompatible with the configs for standalone statsd servers.
So you need to manually translate configs of the used statsd server to stream aggregation configs when migrating
from standalone statsd server to statsd server built into VictoriaMetrics (or vmagent).

Another important drawback is that it is very easy to shoot yourself in the foot when using built-in statsd server
with the -statsd.disableAggregationEnforcement command-line flag or with improperly configured streaming aggregation.
In this case the ingested statsd metrics will be stored to VictoriaMetrics as is without any aggregation.
This may result in high CPU usage during data ingestion, high disk space usage for storing all the unaggregated
statsd metrics and high CPU usage during querying, since all the unaggregated metrics must be read, unpacked and processed
during querying.

P.S. Built-in statsd server can be added to VictoriaMetrics and vmagent after figuring out more ergonomic
specialized configuration for aggregating of statsd metrics. The main requirements for this configuration:

- easy to write, read and update (ideally it should work out of the box for most cases without additional configuration)
- hard to misconfigure (e.g. hard to shoot yourself in the foot)

It would be great if this configuration will be compatible with the configuration of the most widely used statsd server.

In the mean time it is recommended continue using external statsd server.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6265
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5053
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5052
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/206
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4600
2024-07-03 23:51:56 +02:00
..
appmetrics all: add -metrics.exposeMetadata command-line flag, which can be used for adding TYPE and HELP metadata for metrics exposed at /metrics page 2023-12-19 03:20:40 +02:00
auth lib/auth: add NewTokenPossibleMultitenant() for parsing auth token, which can be multitenant 2023-08-30 14:17:55 +02:00
awsapi lib/awsapi: properly assume role with webIdentity token (#5495) 2023-12-20 19:05:39 +02:00
backup lib/backup/s3remote: fixed credsFilePath flag (#6488) 2024-06-14 14:13:02 +02:00
blockcache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
bloomfilter lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
bufferedwriter app/vmselect: move common http functionality from app/vmselect/searchutils to lib/httputils 2023-06-19 22:34:20 -07:00
buildinfo all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
bytesutil lib/bytesutil: optimize internStringMap cleanup 2024-06-13 15:06:51 +02:00
cgroup lib/cgroup: remove SetGOGC() function 2024-02-05 12:11:08 +02:00
decimal lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
encoding lib/encoding: optimize UnmarshalVarUint64, UnmarshalVarInt64 and UnmarshalBytes a bit 2024-05-14 01:23:54 +02:00
envflag lib/envflag: do not allow unsupported form for boolean command-line flags in the form -boolFlag value 2023-08-17 13:26:53 +02:00
envtemplate allowed using dashes and dots in environment variables names (#4009) 2023-03-24 15:43:05 -07:00
fastnum lib/fastnum: use unsafe.Slice() instead of deprecated reflect.SliceHeader 2024-02-29 17:17:13 +02:00
fasttime lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
filestream lib/filestream: do not measure read / write duration from / to in-memory buffers 2024-01-23 14:52:22 +02:00
flagutil app/vmagent: add max_scrape_size to scrape config (#6434) 2024-06-20 13:58:42 +02:00
formatutil app/vmbackupmanager: add metrics for better observability (#488) 2022-12-20 14:18:06 -08:00
fs lib/fs/fscore: do not trim content from path (#6503) 2024-06-19 10:31:48 +02:00
htmlcomponents lib/htmlcomponents: use relative links for the top page and for favicon.ico 2023-11-13 20:29:05 +01:00
httpserver app/vlselect: properly return live tailing results 2024-06-27 15:05:57 +02:00
httputils app/vmalert: support DNS SRV record in -remoteWrite.url (#6299) 2024-05-22 10:52:51 +02:00
influxutils lib/flagutil: rename Array to ArrayString 2022-10-01 18:26:36 +03:00
ingestserver Revert c6c5a5a186 and b2765c45d0 2024-07-03 23:51:56 +02:00
leveledbytebufferpool lib/leveledbytebufferpool: do not pool byte slices bigger than 2^18 bytes 2024-06-13 16:56:25 +02:00
logger lib/logger: increase default -loggerMaxArgLen command-line flag value from 500 to 1000 2023-11-14 19:52:27 +01:00
logstorage lib/logstorage: allow writing after N in front of before N at stream_context pipe 2024-07-02 01:38:20 +02:00
lrucache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
memory all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:12:51 +01:00
mergeset lib/mergeset: adds tracking for indexdb records drop (#6297) 2024-05-24 14:55:20 +02:00
metricsql all: make fmt via the upcoming Go1.19 2022-07-11 19:22:15 +03:00
netutil app/vmauth: fix discovering backend IPs when url_prefix contains hostname with srv+ prefix (#6401) 2024-06-12 12:30:44 +02:00
persistentqueue Fixed a typo in the FastQueue mutex comment (#6514) 2024-06-20 02:30:36 -07:00
procutil all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:12:51 +01:00
promauth all: replace old https://docs.victoriametrics.com/sd_configs.html url with the new one - https://docs.victoriametrics.com/sd_configs/ 2024-04-18 02:27:47 +02:00
prompb Revert "Exemplar support (#5982)" 2024-07-03 15:30:21 +02:00
prompbmarshal Revert "Exemplar support (#5982)" 2024-07-03 15:30:21 +02:00
promrelabel lib/streamaggr: added stale samples metric, added metrics labels (#6462) 2024-07-01 14:56:17 +02:00
promscrape lib/promscrape: use prompbmarshal.MustParsePromMetrics function at parseData() test function 2024-07-03 16:08:13 +02:00
promutils lib/logstorage: work-in-progress 2024-06-04 01:49:02 +02:00
protoparser Revert c6c5a5a186 and b2765c45d0 2024-07-03 23:51:56 +02:00
proxy lib/promscrape: use the standard net/http.Client instead of fasthttp.Client for scraping targets in non-streaming mode 2024-01-30 18:39:10 +02:00
pushmetrics lib/pushmetrics: wait until the background goroutines, which push metrics, are stopped at pushmetrics.Stop() 2024-01-15 13:50:36 +02:00
querytracer lib/querytracer: add missing blank comment line after 3121d76bee 2023-11-15 16:10:43 +01:00
ratelimiter app/vmagent: properly shutdown when -maxIngestionRate limit is reached 2024-03-30 06:43:48 +02:00
regexutil lib/logstorage: work-in-progress 2024-05-25 22:59:13 +02:00
slicesutil lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
snapshot Revert "app/vmbackup: introduce new flag type URL (#6152)" 2024-04-24 13:47:57 +02:00
storage Fix Date metricid cache consistency under concurrent use (#6534) 2024-06-26 17:33:38 +02:00
streamaggr app/vmagent/remotewrite,lib/streamaggr: re-use common code in tests after 879771808b 2024-07-03 15:21:36 +02:00
stringsutil lib/logstorage: work-in-progress 2024-05-22 21:01:20 +02:00
syncwg all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
tenantmetrics lib/encoding/zstd: switch back from atomic.Pointer to atomic.Value for map[...]... 2023-07-20 20:56:11 -07:00
timerpool lib/timerpool: use timer pool in concurrency limiters 2019-05-28 17:20:10 +03:00
timeutil all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:40:32 +02:00
uint64set lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
workingsetcache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
writeconcurrencylimiter app/vmagent/remotewrite: clarify the reason behind the default value for -remoteWrite.queues in the same way as the reason for -maxConcurrentInserts is defined at 73f5fb0f0c 2024-03-06 13:43:08 +02:00