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31 commits

Author SHA1 Message Date
Nikolay
7976c22797
Fixes error handling for promscrape.streamParse (#1009) 
properly return error if client cannot read data,
properly suppress scraper errors
 2021-01-12 13:31:47 +02:00
Aliaksandr Valialkin
9abb2d6c74 lib/protoparser/prometheus: follow-up commit after 7d38627b9f6f212ae602aea6a72f469fe3c70ba2 
Document the bugfix in docs/CHANGELOG.md and add a test for the bugfix.
 2020-12-16 23:40:17 +02:00
BigFish
27f0261257
lib/protoparser/prometheus/parser.go (#970) 
fix parse timestamp error if there are some whitespaces after timestamp
 2020-12-16 23:36:20 +02:00
Aliaksandr Valialkin
4146fc4668 all: properly handle CPU limits set on the host system/container 
This can reduce memory usage on systems with enabled CPU limits.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946
 2020-12-08 21:07:29 +02:00
Aliaksandr Valialkin
a906b3862f lib/protoparser/prometheus: properly parse OpenMetrics timestamps 
OpenMetrics timestamps are floating-point numbers, that represent Unix timestamp in seconds.
This differs from Prometheus exposition format, where timestamps are integer numbers representing Unix timestamp in milliseconds.
 2020-11-27 14:54:29 +02:00
Aliaksandr Valialkin
ae04378424 lib/protoparser/prometheus: properly parse "infinity" values in OpenMetrics format 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/924
 2020-11-24 19:03:38 +02:00
Aliaksandr Valialkin
b7f4fc6e0d lib/protoparser/prometheus: properly parse metrics with exemplars 
Examplars have been introduced in OpenMetrics - see https://github.com/OpenObservability/OpenMetrics/blob/master/OpenMetrics.md#exemplars-1
Previously VictoriaMetrics couldn't parse the following metric

    foo{bar="baz"} 123 # exemplar here

This commit fixes this. Note that VictoriaMetrics ignores the exemplar as for now.
 2020-11-24 12:34:56 +02:00
Aliaksandr Valialkin
149c0c4a6d lib/protoparser: propagate callback error to the caller of ParseStream for every supported data ingestion protocols 
The caller of ParseStream then can generate HTTP 503 responses for non-nil errors occured in callbacks when processing incoming requests.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/896
 2020-11-13 13:05:24 +02:00
Aliaksandr Valialkin
e277c3d07b lib/promscrape: add stream parse mode for efficient scraping of targets that expose millions of metrics 2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin
19c0b6f3ef lib/protoparser/prometheus: sort rows before comparing them in TestParseStream, since the order for callback calls is non-deterministic 2020-09-29 12:30:04 +03:00
Aliaksandr Valialkin
7cde336b33 lib/protoparser/prometheus: fix TestParseStream after 124f78857b 2020-09-29 12:11:17 +03:00
Aliaksandr Valialkin
7500146321 lib/protoparser: avoid copying of buffer read from the network to unmarshal buffer 2020-09-28 17:19:16 +03:00
Aliaksandr Valialkin
124f78857b app/{vminsert,vmagent}: improve data ingestion speed over a single connection 
Process data obtianed from a single connection on all the available CPU cores.
 2020-09-28 04:13:08 +03:00
Aliaksandr Valialkin
5cdad60a6f lib/protoparser: use 64KB read buffer instead of default 4KB buffer provided by net/http.Server 
This should reduce syscall overhead when reading big amounts of data
 2020-09-28 02:07:10 +03:00
Aliaksandr Valialkin
d8183c3124 lib/protoparser: report more errors for incorrect timestamps and/or values 
Previously certain errors in timestamps and/or values could be silently skipped,
which could lead to samples with zero values stored in the database.

Updates https://github.com/VictoriaMetrics/vmctl/issues/25
 2020-09-16 02:14:18 +03:00
Aliaksandr Valialkin
2380e9b017 app/{vminsert,vmagent}: allow passing timestamp via timestamp query arg when ingesting data to /api/v1/import/prometheus 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/750
 2020-09-11 13:27:14 +03:00
Aliaksandr Valialkin
ed00eb3f33 lib/protoparser: removed unnecessary call to SetReadDeadline when reading a stream of data 
The OS should return any buffered data in the stream without the need to set the read timeout.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-15 15:38:08 +03:00
Aliaksandr Valialkin
7554be172d lib/protoparser: move common code for detecting timeouts to ReadLinesBlockExt 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/696
 2020-08-14 20:40:15 +03:00
Aliaksandr Valialkin
215967437d lib/protoparser/prometheus: typo fix in error message 2020-08-14 11:04:23 +03:00
Aliaksandr Valialkin
15aa6142ef lib/protoparser: clarify that the string passed to Unmarshal() function must remain available when the parsed rows are in use 2020-08-11 17:04:39 +03:00
Aliaksandr Valialkin
865610a7c8 lib/protoparser/prometheus: add a test for cassandra-exporter 
Thanks to Seva
 2020-07-27 18:37:11 +03:00
Aliaksandr Valialkin
cde18d1f43 lib/protoparser: properly update vm_protoparser_rows_read_total{type="promscrape"} metric 2020-07-14 12:16:35 +03:00
Seva Poliakov
457e61900d add vm_protoparser_rows_read_total metrics to promscrape (#624) 
* add vm_protoparser_rows_read_total metrics to promscrape

move vm_protoparser_rows_read_total for promscrape to better place

move vm_protoparser_rows_read_total for promscrape to better place

* remove possibility of infinity loop at prometheus parser
 2020-07-14 12:16:34 +03:00
Aliaksandr Valialkin
cba820e390 app/{vminsert,vmagent}: add ability to import data in Prometheus exposition format via /api/v1/import/prometheus 2020-07-10 12:14:07 +03:00
Aliaksandr Valialkin
d5dddb0953 all: use %w instead of %s for wrapping errors in fmt.Errorf 
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
 2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
69004a5f67 lib/promscrape: fix tests after the commit 658a8742ac 
The original commit copies `__address__` label to `instance` label when generating per-target labels as Prometheus does.

See https://www.robustperception.io/life-of-a-label for details.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/453
 2020-05-03 16:56:15 +03:00
DexterZhang
658a8742ac
fix(vmagent): different behavior as how prometheus deal with labels. [Issue#453] (#454) 2020-05-03 16:51:03 +03:00
Aliaksandr Valialkin
1d7ab78b55 lib/protoparser/prometheus: allow trailing comma in tags list 
The trailing comma is generated by cloudwatch exporter.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/350
 2020-03-02 22:22:09 +02:00
Aliaksandr Valialkin
04762344c6 app/vmagent: initial implementation for vmagent 2020-02-23 13:36:03 +02:00
Aliaksandr Valialkin
71a52f5f90 lib/protoparser/prometheus: skip leading whitespace from tag names 2020-02-16 19:06:33 +02:00
Aliaksandr Valialkin
2a0a0ed14d lib/protoparser: add parser for Prometheus exposition text format 
This parser will be used by vmagent
 2020-01-24 20:11:02 +02:00