VictoriaMetrics/app/vmselect
Ze'ev Klapow 680a661ec0
fix le buckets when adjacent vmrange is empty (#4021)
There is a bug here where if you have a single bucket like:

foo{vmrange="4.084e+02...4.642e+02"} 2 123

The expected output is three le encoded buckets like:

foo{le="4.084e+02"} 0 123
foo{le="4.642e+02"} 2 123
foo{le="+Inf"} 2 123

This correctly encodes the start and end of the vmrange.
If however, the input contains the previous bucket, and that bucket is
empty then you only get the end le and +Inf out currently, i.e:

foo{vmrange="7.743e+05...8.799e+05"} 5 123
foo{vmrange="6.813e+05...7.743e+05"} 0 123

results in:

foo{le="8.799e+05"} 5 123
foo{le="+Inf"} 5 123

This causes issues when you go to compute a quantile because this means
that the assumed lower bound of the buckets is 0 and this we interpolate
between 0->end rather than the vmrange start->end as expected.
2023-03-27 18:04:29 -07:00
..
bufferedwriter lib/netutil: move IsTrivialNetworkError() function there, since it is used in multiple places across the code 2023-01-27 13:24:44 -08:00
clusternative lib/vmselectapi: limit the number of concurrently executed requests 2023-01-06 18:39:46 -08:00
deployment Rootless docker images by default (#358) 2020-03-27 21:18:32 +02:00
graphite all: use metricsql.CompileRegexp instead of regexp.Compile for compiling regexps used in graphite queries 2023-01-09 21:45:34 -08:00
graphiteql app,lib: fix typos in comments (#3804) 2023-02-13 09:32:35 -08:00
multiarch all: run apk update && apk upgrade in base Alpine Docker image in order to get all the recent security fixes 2023-02-09 14:03:02 -08:00
netstorage app/vmselect/netstorage: reduce the contention at fs.ReaderAt stats collection on systems with big number of CPU cores 2023-03-25 16:38:39 -07:00
prometheus app/vmselect: follow-up for 10ab086366 2023-03-27 15:11:42 -07:00
promql fix le buckets when adjacent vmrange is empty (#4021) 2023-03-27 18:04:29 -07:00
querystats app/vmselect: do not track queries with less than 1ms execution time at /api/v1/status/top_queries 2021-07-15 16:53:35 +03:00
searchutils chore: Use http constants to replace numbers (#3846) 2023-02-22 18:59:32 -08:00
static/css app/vmselect: properly serve static css for /select/.../metric-relabel-debug page 2022-12-10 03:04:43 -08:00
vmui vmui: heatmap (#3780) 2023-03-26 00:31:21 -07:00
main.go all: follow-up for 7a3e16e774 2023-03-08 01:42:58 -08:00
Makefile all: add Windows build for VictoriaMetrics 2023-03-19 23:28:26 -07:00
README.md app/vmselect: expose vmui at /vmselect/<accountID>/vmui/ instead of /vmselect/<accountID>/prometheus/vmui/ 2021-07-10 12:32:21 +03:00
vmui.go app/vmselect: follow-up after 820312a2b1 2023-01-11 23:37:51 -08:00

vmselect performs the following tasks:

  • Splits incoming selects to tasks for vmstorage nodes and issues these tasks to all the vmstorage nodes in the cluster.

  • Merges responses from all the vmstorage nodes and returns a single response.

The vmui directory contains static contents built from app/vmui package with make vmui-update command. The vmui page is available at http://<vmselect>:8481/select/<accountID>/vmui/.