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VictoriaMetrics/app/vmselect
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Dima Lazerka e6ee235707
Export "null" in jsonl instead of NaN (#2518) 
* Export "null" in jsonl instead of NaN

The NaN appeared because of staleness markers that were added for compatibility. I think it's better to use json `null`, implemented here.

Also maybe it also makes sense to add a flag like `?skip-staleness-markers=true` to `/export`, to skip nulls at all?

* Update app/vmselect/prometheus/export.qtpl

* app/vmselect/prometheus/export.qtpl.go: `make quicktemplate-gen`

* docs/CHANGELOG.md: document the change

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-04-29 12:51:03 +03:00
..
bufferedwriter app/vmselect/bufferedwriter: suppress trivial network errors, which can be generated by remote side 2022-03-18 19:27:33 +02:00
deployment Rootless docker images by default (#358) 2020-03-27 21:18:32 +02:00
graphite app/vmselect: add fine-grained limits for the number of returned/scanned time series for various APIs 2022-03-26 11:28:14 +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/netstorage: bump RPC API versions for vmselect->vmstorage communications 2022-04-08 12:36:04 +03:00
prometheus Export "null" in jsonl instead of NaN (#2518) 2022-04-29 12:51:03 +03:00
promql app/vmselect/promql: add tlast_change_over_time(m[d]) function, which returns the timestamp for the last change of m on the given lookbehind window d 2022-04-27 10:58:40 +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 lib/promscrape: support prometheus-like duration in scrape configs (#2169) 2022-02-11 16:17:51 +02:00
vmui vmui: expression alias (#2495) 2022-04-27 10:59:51 +03:00
main.go docs/CHANGELOG.md: document a1e17e91f8 2022-03-21 15:37:03 +02:00
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/.