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59 commits

Author SHA1 Message Date
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
54b9e1d3cb lib/cgroup: set GOGC to 50 by default if it isn't set 
This should reduce memory usage for typical VictoriaMetrics workloads by up to 50%
 2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin
ed83558646 app/vmauth: properly handle http.ErrAbortHandler panic 
This panic can be raised by the reverseProxy on aborted request to the backend.
So handle it (e.g. suppress) at reverseProxy.ServeHTTP call.

Do not suppress the panic at lib/httpserver generic HTTP handler,
since it may result in an inconsistent state left after the panicking handler.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1353
 2021-06-11 12:50:25 +03:00
Nikolay
6b29b955c0
disables panic for net/httpAbortHandler (#1355) 2021-06-09 12:08:58 +03:00
Aliaksandr Valialkin
4c7bb75fa2 Makefile: update golangci-lint from v1.29.0 to v1.40.1 2021-05-20 18:27:10 +03:00
Aliaksandr Valialkin
f4719889da lib/httpserver: typo fix in -http.shutdownDelay command-line flag description: servier -> server 2021-05-18 16:26:16 +03:00
Aliaksandr Valialkin
6c944b86d8 docs: dealay -> delay 
Thanks to @jelmd . See 0b7e3510c8 (r50884991)
 2021-05-18 01:07:52 +03:00
Aliaksandr Valialkin
afec68ad13 lib/httpserver: add new X-Server-Hostname header instead of overwriting already exsiting header 
This makes possible tracking origins of chained requests over multiple hops.
 2021-05-11 23:48:59 +03:00
Aliaksandr Valialkin
f2d5c4e2d0 lib/httpserver: return X-Server-Hostname http header in all the responses for better debuggability 2021-05-11 22:03:48 +03:00
Aliaksandr Valialkin
ce9e163e94 lib/httpserver: stop the process on panics in request handlers 
Panics may leave the process in inconsistent state. That's why it is better to stop the process after the panic
instead of recovering from the panic. Unfortunately, the standard net/http.Server recovers panics in request handlers.
See https://github.com/golang/go/issues/16542 . That's lib/httpserver must stop the process on itself after the panic.
 2021-05-03 11:59:40 +03:00
Aliaksandr Valialkin
6fa5981e68 app/vmagent: list user-visible endpoints at http://vmagent:8429/ 
While at it, use common WriteAPIHelp function for the listing in vmagent, vmalert and victoria-metrics
 2021-04-30 09:36:43 +03:00
Artem Navoiev
77be3e3a82
improve docs for cli flags (#1202) 
* improve docs for cli flags

* improve docs for cli flags.2
 2021-04-12 12:28:04 +03:00
Aliaksandr Valialkin
bc5c4add89 lib/httpserver: export vm_available_memory_bytes and vm_available_cpu_cores metrics 
These metrics are useful for tracking the available memory and CPU cores for VictoriaMetrics apps.
 2021-03-10 12:02:42 +02:00
Aliaksandr Valialkin
7f15cd7161 lib/httpserver: make make errcheck happy after the commit 9fc7726d84 2021-03-01 00:34:43 +02:00
Aliaksandr Valialkin
9fc7726d84 lib/httpserver: make sure the gzipResponseWriter.Write() is called on Flush() and Close() calls 
This should fix the `http: superfluous response.WriteHeader call` issue

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1078
 2021-02-28 19:22:50 +02:00
Aliaksandr Valialkin
1256931aee lib/httpserver: make errcheck happy 2021-02-16 22:05:32 +02:00
Aliaksandr Valialkin
8ec45ff335 lib/httpserver: cache /metrics output for a second 
This should reduce CPU load when `/metrics` output is scraped with a frequency exceeding a request per second
 2021-02-16 14:56:36 +02:00
Aliaksandr Valialkin
9fb38569eb lib/httpserver: expose process_open_fds and process_max_fds metrics 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/402
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1037
 2021-02-04 16:40:50 +02:00
Nikolay
7bf5d48315
bumps minimal tls version (#1012) 2021-01-13 00:35:47 +02:00
Nikolay
ce8c2dd1f1
Changes targets api (#961) 
* changes /targets api
adds html response if requester accepts text/html,
adds quick template for /targets api,
fixes pathPrefix for / requests

* changes namings

* renamed targets file

* Update app/victoria-metrics/main.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>

* adds trimspace to qtpl,
moves content-type for targets response closer to writer

* fixes bug with prefix

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-12-14 13:36:48 +02:00
Aliaksandr Valialkin
47a038401b all: consistently return text-based HTTP responses with charset=utf-8 
This is a follow-up for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897
 2020-11-13 10:35:41 +02:00
John Belmonte
51e661ecfe
add short_version label to vm_app_version metric (#877) 
* add short_version label to vm_app_version metric

use case:  Version panel of Grafana dashboard should use a live query, but currently it uses a template query which becomes stale.  Grafana is not able to preform regex substitution on labels.

* Update metrics.go

* fix compile
 2020-11-03 14:10:42 +02:00
faceair
84e3881c0b
disable response compression on websocket (#841) 2020-10-17 13:32:34 +03:00
Aliaksandr Valialkin
ab53cb6f7b app/vmagent: substitute -remoteWrite.url with secret-url value in logs, since it may contain sensitive info such as passwords or auth tokens 
Pass `-remoteWrite.showURL` command-line flag in order to see real `-remoteWrite.url` values in logs and at `/metrics` page.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/773
 2020-09-16 22:36:25 +03:00
Aliaksandr Valialkin
df169b1ebd lib/httpserver: add a jitter to connection timeouts in order to protect from Thundering herd problem 2020-09-08 19:55:09 +03:00
Aliaksandr Valialkin
d387da142e lib/httpserver: add -http.connTimeout command-line flag for limiting the lifetime for incoming http connections 
This can be useful for balancing incoming connections among multiple services.
 2020-09-03 22:23:29 +03:00
Aliaksandr Valialkin
c2ff8de456 lib/httpserver: add -http.idleConnTimeout command-line flag for tuning the timeout for incoming idle http connections 2020-09-01 15:33:24 +03:00
Aliaksandr Valialkin
509d12643b app/vmselect: show X-Forwarded-For contents on /api/v1/status/active_queries page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/659
 2020-07-31 20:05:18 +03:00
Aliaksandr Valialkin
67a64c142d lib/httpserver: emit X-Forwarded-For additionally to remoteAddr in error logs 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/659
 2020-07-29 13:12:42 +03:00
Aliaksandr Valialkin
b35cb293f5 lib/httpserver: log remote address in error message from httpserver.Errorf 
This should improve detection of the root cause of errors.
Thanks to Anant for the idea.
 2020-07-20 14:11:22 +03:00
Aliaksandr Valialkin
b277ba8121 lib/httpserver: add Unwrap method to ErrorWithStatusCode, so As and Is functions in standard errors package may properly unwrap the error inside ErrorWithStatusCode 2020-07-01 00:54:01 +03:00
Aliaksandr Valialkin
7c2c8b2981 all: use errors.As for inspecting errors that implement httpserver.ErrorWithStatusCode 2020-07-01 00:04:34 +03:00
Aliaksandr Valialkin
69a647b0d2 lib/httpserver: do not flush and do not close gzip writer if response compression is disabled 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/535
 2020-06-05 21:37:28 +03:00
Aliaksandr Valialkin
f5a4731412 lib/httpserver: properly set status code for empty response 2020-05-24 23:55:28 +03:00
Aliaksandr Valialkin
947009f459 lib/httpserver: fix compression for static files 2020-05-24 22:17:21 +03:00
Aliaksandr Valialkin
b3fcd726e3 lib/httpserver: do not recompress already compressed response 
This shoud help with vmauth issue - https://github.com/VictoriaMetrics/VictoriaMetrics/issues/514
 2020-05-22 16:45:04 +03:00
Aliaksandr Valialkin
099e44005b lib/httpserver: add -http.shutdownDelay flag for a grace period before http server shutdown 
The http server returns 503 non-OK error at `/health` page during grace period,
so load balancers in front of the http server could re-route incoming requests
to other servers.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/463
 2020-05-07 15:30:35 +03:00
Aliaksandr Valialkin
787fcfba0c lib/httpserver: reduce typical duration for http server graceful shutdown 
Previously the duration for graceful shutdown for http server could take more than a minute
because of imporperly set timeouts in setNetworkTimeout.
Now typical duration for graceful shutdown should be reduced to less than 5 seconds.
 2020-05-07 14:12:39 +03:00
Aliaksandr Valialkin
ee810e5f3a lib/httpserver: rename http.externalURL to http.pathPrefix and improve help message for this flag 
The `http.externalURL` flag name was slightly misleading, so it has been renamed to `http.pathPrefix`.
 2020-05-02 13:07:34 +03:00
DexterZhang
34743974d5
feat(httpserver): add http.externalUrl config to http server, it adds prefix to http path automatically (#452) 2020-05-02 12:42:53 +03:00
Aliaksandr Valialkin
01c17092e1 lib/httpserver: mention that -http.maxGracefulShutdownDuration command-line flag value can be increased on shutdown timeout 2020-04-30 01:38:06 +03:00
Aliaksandr Valialkin
071fdf5518 lib/logger: add WARN level for logging expected errors such as invalid user queries 2020-04-15 20:50:26 +03:00
kreedom
298eb0a0f8 [vmalert] improve external url handling 2020-04-01 22:29:11 +03:00
Aliaksandr Valialkin
cdf0a4cf8f lib/httpserver: remove unnecessary http.HandlerFunc wrapper in gzipHandler 2020-04-01 18:14:17 +03:00
Aliaksandr Valialkin
149f365f74 lib/httpserver: add -http.maxGracefulShutdownDuration command-line flag for tuning the maximum duration required for graceful shutdown of http server 2020-03-27 21:23:30 +02:00
Aliaksandr Valialkin
04762344c6 app/vmagent: initial implementation for vmagent 2020-02-23 13:36:03 +02:00
Aliaksandr Valialkin
42864bb52f all: do not clash flag description with back-quoted flag types 
See https://golang.org/pkg/flag/#PrintDefaults for more details.
 2020-02-04 15:46:52 +02:00
Aliaksandr Valialkin
f6baee6efe lib/httpserver: log the caller of httpserver.Errorf 
Previously log message contained `httpserver.Errorf`, not it contains the caller of `httpserver.Errorf`, which is more useful.
 2020-01-25 20:17:59 +02:00
Aliaksandr Valialkin
9df5b2d1c3 app/victoria-metrics: add -selfScrapeInterval flag for self-scraping /metrics page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/30
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/180
 2020-01-25 19:19:59 +02:00
Aliaksandr Valialkin
c9472e4f3a 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 23:58:46 +02:00