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VictoriaMetrics/app/vmselect
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YuDong Tang 295f2aa8ca
app/vmselect:add command-line flag -search.inmemoryBufSizeBytes (#6869) 
add command-line flag `-search.inmemoryBufSizeBytes` for configuring size of in-memory buffers used by vmselect during processing of vmstorage responses. A new summary metric `vm_tmp_blocks_inmemory_file_size_bytes` is exposed to show the size of the buffer during requests processing.

The new setting can be used by experienced users to adjust memory usage by vmselect when processing
many small read requests. Instead of allocating 4MB buffers each time, vmselect can be instructed to lower
the buffer size via `-search.inmemoryBufSizeBytes`. To make the decision whether this flag needs to be adjusted
users can consult with `vm_tmp_blocks_inmemory_file_size_bytes` which shows the actual size of buffers used
during query processing.

----------

The detailed information of this PR can be found in
https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6851

### Checklist

The following checks are **mandatory**:

- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit cab3ef8294)
2024-08-26 14:48:53 +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 all: consistently use 'any' instead of 'interface{}' 2024-07-10 00:20:37 +02:00
promql app/vmseleсt/promql: fix calculation of histogram buckets 2024-08-15 10:11:41 +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 make vmui-update 2024-08-01 14:45:09 +02:00
main.go make go vet happy 2024-08-19 21:15:33 +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/.