Kiu/VictoriaMetrics
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Code Issues Actions 8 Packages Projects Releases Wiki Activity
80a3c410d4
VictoriaMetrics/app/vmselect
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Alexander Frolov 80a3c410d4
vmselect: ensure default -search.maxConcurrentRequests is non-decreasing (#6996) 
### Describe Your Changes

vmselect determines the default value of `-search.maxConcurrentRequests`
multiplying the number of available CPUs by 2 if and only if the number
is small (to be precise <= 4). That leads
`-search.maxConcurrentRequests` is decreasing at the edge of these two
cases as shown below:
| CPUs | MaxConcurrentRequests | MaxConcurrentRequests (original
proposal) | MaxConcurrentRequests (updated proposal) |
|--------|--------|--------|--------|
| 1 | 2 | 2 | 2 |
| 2 | 4 (prev+2) | 4 (prev+2) | 4 (prev+2) |
| 3 | 6 (prev+2) | 6 (prev+2) | 6 (prev+2) |
| 4 | 8 (prev+2) | 8 (prev+2) | 8 (prev+2) |
| 5 | 5 __(prev-3)__ | 9 __(prev+1)__ | 10 __(prev+2)__ |
| 6 | 6 (prev+1) | 10 (prev+1) | 12 (prev+2) |
| 7 | 7 (prev+1) | 11 (prev+1) | 14 (prev+2) |
| 8 | 8 (prev+1) | 12 (prev+1) | 16 (prev+2) |

I propose to make the default value non-decreasing.
2024-09-30 09:51:54 +02:00
..
graphite all: consistently use 'any' instead of 'interface{}' 2024-07-10 00:20:37 +02:00
graphiteql app/vmselect: use strings.EqualFold instead of strings.ToLower where appropriate 2024-05-12 10:20:41 +02:00
netstorage app/vmselect:add command-line flag -search.inmemoryBufSizeBytes (#6869) 2024-08-26 14:48:53 +02:00
prometheus app/vlselect: add /select/logsql/stats_query endpoint, which is going to be used by vmalert 2024-09-06 23:06:43 +02:00
promql app/vmselect/promql: consistently replace NaN data points with non-NaN values for range_first and range_last functions 2024-09-23 14:59:29 +02:00
querystats all: consistently use stringsutil.JSONString() for formatting JSON strings with fmt.* functions instead of using "%q" formatter 2024-07-17 13:52:13 +02:00
searchutils lib/logstorage: work-in-progress 2024-06-27 14:20:43 +02:00
vmui app/{vmselect,vlselect}: run make vmui-update vmui-logs-update after 25a9802ca4 and 8657d03433 2024-09-27 13:50:47 +02:00
main.go vmselect: ensure default -search.maxConcurrentRequests is non-decreasing (#6996) 2024-09-30 09:51:54 +02:00
README.md app/vmui: move source code from https://github.com/VictoriaMetrics/vmui to app/vmui 2021-07-09 17:15:23 +03:00
vmui.go app/vmselect: add missing whitespace into the description for -vmui.defaultTimezone command-line flag 2024-02-01 14:49:51 +02:00

README.md

vmselect performs the incoming queries and fetches the required data from vmstorage.

The vmui directory contains static contents built from app/vmui package with make vmui-update command. The vmui page is available at http://<victoria-metrics>:8428/vmui/.