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Author SHA1 Message Date
Aliaksandr Valialkin
af2ceaaa0b lib/storage: mention source parts on merge error 
This should improve determining broken source part.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/76
 2019-06-24 14:08:43 +03:00
Aliaksandr Valialkin
61926bae01 app/vmselect/promql: adjust the provided window only for range functions with dt in denominator 
This should fix range function calculations such as `changes(m[d])` where `d` is smaller
than the scrape interval.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72
 2019-06-23 19:27:31 +03:00
Aliaksandr Valialkin
ee13256f74 app/vmselect/promql: use deriv_fast instead of deriv in ttf, since deriv calculations have been changed recently 2019-06-23 15:54:18 +03:00
Aliaksandr Valialkin
3b3b2f1e6e app/vmselect/promql: adjust ttf calculation, so deriv(freev) for freev=m[d] could be properly calculated 2019-06-23 14:31:19 +03:00
Aliaksandr Valialkin
c9cbf5351c vendor: update github.com/valyala/gozstd to v1.5.1 2019-06-22 00:14:19 +03:00
Aliaksandr Valialkin
146c6e1f72 app/vmselect/promql: typo fixes in comments 2019-06-21 23:22:59 +03:00
Aliaksandr Valialkin
d261fa2885 app/vmselect/promql: add deriv_fast function for calculating fast derivative 
`deriv_fast` calculates derivative based on the first and the last point on the interval
instead of calculating linear regression based on all the data points on the interval.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73
 2019-06-21 23:05:39 +03:00
Aliaksandr Valialkin
5b47c00910 app/vmselect/promql: use linear regression in deriv func like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73
 2019-06-21 22:59:46 +03:00
Aliaksandr Valialkin
9e1119dab8 app/vmselect/promql: ajdust data model to the model used in Prometheus 
Do not take into account data points on the range `[timestamp .. timestamp+step)`
when calculating value on the given `timestamp`.
Use only data points from the past when performing these calculations like Prometheus does.

This should reduce discrepancies between results returned by VictoriaMetrics
and results returned by Prometheus.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71
 2019-06-21 21:54:48 +03:00
Aliaksandr Valialkin
47a3228108 app/vmselect/promql: do not strip __name__ form time series after binary comparison operation 
Example:

  foo > 10

Would leave `foo` name for all the matching time series on the left.
 2019-06-21 13:09:38 +03:00
Aliaksandr Valialkin
e88a03323a all: initial stubs for Windows support; see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/70 2019-06-20 20:07:10 +03:00
Aliaksandr Valialkin
b75630fcf4 Makefile: enable golangci-lint in make check_all 2019-06-20 14:52:58 +03:00
Aliaksandr Valialkin
80db24386e lib/storage: typo fixes found by golangci-lint; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:37:55 +03:00
Aliaksandr Valialkin
296c14317f lib/netutil: remove unused TCPListener.name; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:36:15 +03:00
Aliaksandr Valialkin
973e4b5b76 app/vmselect/promql: remove unused func keepLastValue; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:35:11 +03:00
Aliaksandr Valialkin
7aadec8e3c app/vmselect/promql: typo fix; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:33:47 +03:00
Aliaksandr Valialkin
45fc8cb72f Makefile: add make golangci-lint rule for running golangci-lint run; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:30:55 +03:00
Aliaksandr Valialkin
4b2523fb40 app/vminsert/opentsdb: remove unused const maxReadPacketSize; update https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69 2019-06-20 14:30:06 +03:00
Aliaksandr Valialkin
70ba36fa37 app/vmselect/prometheus: return better error messages on missing args to /api/v1/* 2019-06-20 14:07:55 +03:00
Aliaksandr Valialkin
a78b3dba7f app/vmstorage: add vm_cache_entries{type="storage/hour_metric_ids"} metric for tracking active time series count 2019-06-19 18:36:47 +03:00
Aliaksandr Valialkin
a9cfca6a72 README.md: add max_shards: 100 to the recommended Prometheus config 
Prometheus establishes a connection per shard in remote_write config.
By default it establishes up to 1000 connections to remote storage (max_shards: 1000).
This is quite big, so set `max_shards: 100` in the recommmended Prometheus config.
 2019-06-19 17:48:09 +03:00
Aliaksandr Valialkin
710d6c33ea lib/prompb: remove superflouos bytes copying in ReadSnappy 2019-06-18 20:37:51 +03:00
Aliaksandr Valialkin
a8d4224828 app/vminsert/graphite: allow skipping timestamps in Graphite plaintext protocol 
In this case VictoriaMetrics uses the ingestion time as a timestamp.
 2019-06-18 19:04:04 +03:00
Aliaksandr Valialkin
341bed4822 README.md: mention that arbitrary number of lines may be sent in a single request via supported ingestion protocols 2019-06-18 18:59:12 +03:00
Aliaksandr Valialkin
5982e94c94 vendor: update golang.org/x/sys 2019-06-18 16:19:26 +03:00
Aliaksandr Valialkin
6d6c9eb1f8 lib/flagutil: remove unused package 2019-06-18 10:43:55 +03:00
Aliaksandr Valialkin
86d3d907a5 app/vminsert/influx: add -influxSkipSingleField flag for using {measurement} instead of {measurement}{separator}{field_name} for Influx lines with a single field 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/66
 2019-06-17 19:05:57 +03:00
Aliaksandr Valialkin
269285848f app/vminsert/influx: add -influxMeasurementFieldSeparator flag for the ability to change separator for {measurement}{separator}{field_name} metric name 2019-06-14 10:00:12 +03:00
Aliaksandr Valialkin
47e1e5eb4b deployment/docker: switch builder from go1.12.5 to go1.12.6 2019-06-14 09:32:06 +03:00
Aliaksandr Valialkin
d2c801029b lib/storage: persist metric ids for the current and the previous hour on graceful shutdown 
This should improve performance after restart when the db contains a lot of time series
with high time series churn (i.e. metrics from Kubernetes with many pods and frequent deployments)
 2019-06-14 07:55:14 +03:00
Aliaksandr Valialkin
beb479b8f1 app/vmselect/promql: use dynamic limit on memory for concurrent queries 2019-06-12 23:18:44 +03:00
Aliaksandr Valialkin
611c4401f8 README.md: mention about multi-tenancy 2019-06-12 21:30:36 +03:00
Aliaksandr Valialkin
a8db528930 app/vmselect/promql: merge non-overlapping duplicate time series in group_left and group_right joins 2019-06-12 20:32:32 +03:00
Aliaksandr Valialkin
15613e5338 app/vmselect/promql: swap binary operation with modifier in the error message for improved readability 2019-06-12 17:14:39 +03:00
Aliaksandr Valialkin
3237d0309c app/vmselect/promql: list a sample of duplicate time series in the error message for group_left or group_right 
This should improve troubleshooting for complex queries involving `group_left` and `group_right` modifiers.
 2019-06-12 16:57:37 +03:00
Aliaksandr Valialkin
26f8d7ea1b lib/fs: sync parent dir in MustRemoveAll only if it exists 
The parent directory may be non-existing when the deleted directory
didn't exist before the MustRemoveAll call
 2019-06-12 02:14:44 +03:00
Aliaksandr Valialkin
419197ba08 lib/fs: consolidate *RemoveAll* funcs into a single MustRemoveAll func 
The func syncs parent dir in order to persist directory removal
in the event of power loss
 2019-06-12 01:53:46 +03:00
Aliaksandr Valialkin
a4b4db9bf6 README.md: add a chapter about downsampling 2019-06-12 01:32:26 +03:00
Aliaksandr Valialkin
c1276edab5 lib/fs: panic with fatal error when directories cannot be removed 
Unremoved directories may lead to inconsistent data directory,
so VictoriaMetrics will fail to start next time.

So panic on the first error when trying to remove directory in order
to simplify recover process.
 2019-06-12 01:20:54 +03:00
Aliaksandr Valialkin
2322c9a45a lib/fs: attempt #2 to work around NFS issue with directory removal 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61
 2019-06-12 01:07:05 +03:00
Aliaksandr Valialkin
89b928ff24 vendor: update github.com/VictoriaMetrics/fastcache to v1.5.1 2019-06-11 23:56:08 +03:00
Aliaksandr Valialkin
935bfd7a18 lib/fs: consistency renaming SyncPath -> MustSyncPath, since it doesnt return error 2019-06-11 23:13:49 +03:00
Aliaksandr Valialkin
3dd36b8088 lib/fs: make sure the created directory remains visible in the fs in the event of power loss 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/63
 2019-06-11 23:08:09 +03:00
Aliaksandr Valialkin
afb964670a lib/fs: use filepath.Dir instead of filepath.Split, since the filename is unused 2019-06-11 22:54:26 +03:00
Aliaksandr Valialkin
20fc0e0e54 lib/{storage,mergeset}: sync filenames inside part when finalizing the part 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/63
 2019-06-11 21:51:13 +03:00
Aliaksandr Valialkin
4d9f088526 README.md: add examples on how to write data with Graphite and OpenTSDB protocols 2019-06-11 21:24:32 +03:00
Aliaksandr Valialkin
82d1707861 README.md: add missing port to example urls 2019-06-11 21:05:24 +03:00
Aliaksandr Valialkin
70d20ce8de README.md: use proper urls for single-node version in examples 2019-06-11 20:33:52 +03:00
Aliaksandr Valialkin
723bf1af7f README.md: add example on how to write data with Influx line protocol to VictoriaMetrics 2019-06-11 20:31:25 +03:00
Aliaksandr Valialkin
ac7b186f13 all: try hard removing directory with contents 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61
 2019-06-11 01:57:59 +03:00