Commit graph

6 commits

Author SHA1 Message Date
Will Jordan
209a5024ce
lib/tenantmetrics: improves CounterMap performance with large numbers of tenants
Previously, map for storing tenant metrics was re-created to each newly ingested tenant. It has significant performance impact for systems with large number of tenants. 

 This commit addresses this issue by changing algorithm of creating tenant metric records at map. Instead of map re-creation, it uses `sync.Map` primitive. 


Benchmark results:

```
goos: linux
goarch: amd64
pkg: github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics
cpu: AMD Ryzen 9 5900X 12-Core Processor            
                                            │ lib/tenantmetrics/orig.bench │     lib/tenantmetrics/new.bench     │
                                            │            sec/op            │    sec/op     vs base               │
CounterMapGrowth/n=100,nProcs=GOMAXPROCS-24                  1943.2µ ±  5%   248.0µ ± 11%  -87.24% (p=0.001 n=7)
CounterMapGrowth/n=100-24                                    434.63µ ±  5%   98.82µ ± 16%  -77.26% (p=0.001 n=7)
CounterMapGrowth/n=1000-24                                   32.719m ± 20%   1.425m ±  5%  -95.65% (p=0.001 n=7)
CounterMapGrowth/n=10000-24                                 3653.60m ±  5%   18.00m ±  2%  -99.51% (p=0.001 n=7)
geomean                                                       17.83m         890.4µ        -95.00%
```

Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7482

---
Co-authored-by: Artem Fetishev <rtm@victoriametrics.com>
2024-11-20 18:36:06 +01:00
Zakhar Bessarab
44b071296d
vmselect: add support of multi-tenant queries (#6346)
### Describe Your Changes

Added an ability to query data across multiple tenants. See:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1434

Currently, the following endpoints work with multi-tenancy:
- /prometheus/api/v1/query
- /prometheus/api/v1/query_range
- /prometheus/api/v1/series
- /prometheus/api/v1/labels
- /prometheus/api/v1/label/<label_name>/values
- /prometheus/api/v1/status/active_queries
- /prometheus/api/v1/status/top_queries
- /prometheus/api/v1/status/tsdb
- /prometheus/api/v1/export
- /prometheus/api/v1/export/csv
- /vmui


A note regarding VMUI: endpoints such as `active_queries` and
`top_queries` have been updated to indicate whether query was a
single-tenant or multi-tenant, but UI needs to be updated to display
this info.
cc: @Loori-R 

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Signed-off-by: f41gh7 <nik@victoriametrics.com>
Co-authored-by: f41gh7 <nik@victoriametrics.com>
2024-10-01 16:37:18 +02:00
Aliaksandr Valialkin
dcf5b42670
lib/encoding/zstd: switch back from atomic.Pointer to atomic.Value for map[...]...
The map[...]... is already a pointer type, so atomic.Pointer[map[...]...] results in double pointer.

This is a follow-up for 140e7b6b74
2023-07-20 21:54:51 -07:00
Nikolay
505d359b39
app/vminsert: allows parsing tenant id from labels (#3009)
* app/vminsert: allows parsing tenant id from labels
it should help mitigate issues with vmagent's multiTenant mode, which works incorrectly at heavy load
and it cannot handle more then 100 different tenants.
This functional hidden with flag and do not change vminsert default behaviour
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2970

* Update docs/Cluster-VictoriaMetrics.md

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

* wip

* app/vminsert/netstorage: clean remaining labels in order to free up GC

* docs/Cluster-VictoriaMetrics.md: typo fix

* wip

* wip

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-09-30 17:28:35 +03:00
Aliaksandr Valialkin
3062ff0fdb app/vmselect: export per-tenant stats on the number of requests and the cumulative request duration
The metrics are:
- vm_vmselect_http_requests_total{accountID="...",projectID="..."} - the total number of select requests per each tenant
- vm_vmselect_http_duration_ms_total{accountID="...",projectID="..."} - the total duration in milliseconds for per-tenant select requests

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/932
2021-02-16 23:30:29 +02:00
Aliaksandr Valialkin
8cf0a0e59c app/vminsert: split vm_rows_inserted_total into per-(accountID, projectID) metrics
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/59
2019-06-07 22:11:20 +03:00