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72468c9d75
VictoriaMetrics/app/vmselect
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Roman Khavronenko 72468c9d75
app/vmselect: return NaN instead of 0 for empty value sets (#1660) 
The change affects `count/stddev/stdvar_over_time` funcs and makes
them to return NaN instead of zero when there is no datapoints
in a time window.
This is needed for improving compatibility with Prometheus.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-29 00:38:24 +03:00
..
bufferedwriter app/vmselect: stop /api/v1/export/* execution if client disconnects 2020-09-27 23:52:42 +03:00
deployment Rootless docker images by default (#358) 2020-03-27 21:18:32 +02:00
graphite app/vmselect/graphite: accept and enforce extra_label in all the Graphite APIs 2021-03-23 15:30:15 +02:00
graphiteql Graphite vmalert wip (#112) 2021-02-01 15:28:30 +02:00
multiarch deployment/docker: embed tzdata into prod Go app instead of installing it into base docker image 2021-02-12 04:56:27 +02:00
netstorage app/vmselect/promql: follow-up after 57b3320478 2021-09-24 01:25:04 +03:00
prometheus app/vmselect/prometheus: make more clear log messages for errors during sending data to remote clients 2021-09-16 13:35:37 +03:00
promql app/vmselect: return NaN instead of 0 for empty value sets (#1660) 2021-09-29 00:38:24 +03:00
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 app/vmselect: add -search.maxStatusRequestDuration command-line flag for limiting the duration of requests to /api/v1/status/* and /api/v1/series/count 2021-03-30 21:39:32 +03:00
vmui vmui: use Chart.js as default engine for graph (#1634) 2021-09-27 22:27:49 +03:00
main.go app/vmselect: fix accessing /graphite/* endpoints 2021-09-21 14:06:18 +03:00
Makefile app/{vminsert,vmselect}: automatically add missing port in -storageNode lists passed to vminsert and vmselect 2021-09-15 18:04:30 +03:00
README.md app/vmselect: expose vmui at /vmselect/<accountID>/vmui/ instead of /vmselect/<accountID>/prometheus/vmui/ 2021-07-10 12:32:21 +03:00

README.md

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/.