Kiu/VictoriaMetrics
Kiu/VictoriaMetrics
1
0
Fork 0
mirror of https://github.com/VictoriaMetrics/VictoriaMetrics.git synced 2024-12-15 16:30:55 +01:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

docs: fix key concepts image and links

Browse Source 
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
This commit is contained in:
Artem Navoiev 2024-01-26 20:30:29 +01:00 committed by Aliaksandr Valialkin
parent bb5a0719a5
commit 2b870b1116
No known key found for this signature in database
GPG Key ID: 52C003EE2BCDB9EB
1 changed files with 5 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
docs/keyConcepts.md
View File

@ -475,7 +475,7 @@ The basic monitoring setup of VictoriaMetrics and vmagent is described
in the [example docker-compose manifest](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker). in the [example docker-compose manifest](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker).
In this example vmagent [scrapes a list of targets](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/prometheus.yml) In this example vmagent [scrapes a list of targets](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/prometheus.yml)
and [forwards collected data to VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/9d7da130b5a873be334b38c8d8dec702c9e8fac5/deployment/docker/docker-compose.yml#L15). and [forwards collected data to VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/9d7da130b5a873be334b38c8d8dec702c9e8fac5/deployment/docker/docker-compose.yml#L15).
VictoriaMetrics is then used as a [datasource for Grafana](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/provisioning/datasources/datasource.yml) VictoriaMetrics is then used as a [datasource for Grafana](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker/provisioning/datasources)
installation for querying collected data. installation for querying collected data.
VictoriaMetrics components allow building more advanced topologies. For example, vmagents can push metrics from separate datacenters to the central VictoriaMetrics: VictoriaMetrics components allow building more advanced topologies. For example, vmagents can push metrics from separate datacenters to the central VictoriaMetrics:
@ -537,11 +537,7 @@ foo_bar 4.00 1652170560000 # 2022-05-10 10:16:00
The data above contains a list of samples for the `foo_bar` time series with time intervals between samples The data above contains a list of samples for the `foo_bar` time series with time intervals between samples
ranging from 1m to 3m. If we plot this data sample on the graph, it will have the following form: ranging from 1m to 3m. If we plot this data sample on the graph, it will have the following form:
<p style="text-align: center"> <img src="keyConcepts_data_samples.webp" width="500">
<a href="keyConcepts_data_samples.webp" target="_blank">
<img src="keyConcepts_data_samples.webp" width="500">
</a>
</p>
To get the value of the `foo_bar` series at some specific moment of time, for example `2022-05-10 10:03:00`, in To get the value of the `foo_bar` series at some specific moment of time, for example `2022-05-10 10:03:00`, in
VictoriaMetrics we need to issue an **instant query**: VictoriaMetrics we need to issue an **instant query**:
@ -575,12 +571,7 @@ In response, VictoriaMetrics returns a single sample-timestamp pair with a value
we'll see that there is no raw sample at `2022-05-10 10:03`. When there is no raw sample at the we'll see that there is no raw sample at `2022-05-10 10:03`. When there is no raw sample at the
requested timestamp, VictoriaMetrics will try to locate the closest sample before the requested timestamp: requested timestamp, VictoriaMetrics will try to locate the closest sample before the requested timestamp:
<p style="text-align: center"> <img src="keyConcepts_instant_query.webp" width="500">
<a href="keyConcepts_instant_query.webp" target="_blank">
<img src="keyConcepts_instant_query.webp" width="500">
</a>
</p>
The time range in which VictoriaMetrics will try to locate a replacement for a missing data sample is equal to `5m` The time range in which VictoriaMetrics will try to locate a replacement for a missing data sample is equal to `5m`
by default and can be overridden via the `step` parameter. by default and can be overridden via the `step` parameter.
@ -712,11 +703,7 @@ see that it contains only 13 raw samples. What happens here is that the range qu
an [instant query](#instant-query) executed `1 + (start-end)/step` times on the time range from `start` to `end`. If we plot an [instant query](#instant-query) executed `1 + (start-end)/step` times on the time range from `start` to `end`. If we plot
this request in VictoriaMetrics the graph will be shown as the following: this request in VictoriaMetrics the graph will be shown as the following:
<p style="text-align: center"> <img src="keyConcepts_range_query.webp" width="500">
<a href="keyConcepts_range_query.webp" target="_blank">
<img src="keyConcepts_range_query.webp" width="500">
</a>
</p>
The blue dotted lines in the figure are the moments when the instant query was executed. Since the instant query retains the The blue dotted lines in the figure are the moments when the instant query was executed. Since the instant query retains the
ability to return replacements for missing points, the graph contains two types of data points: `real` and `ephemeral`. ability to return replacements for missing points, the graph contains two types of data points: `real` and `ephemeral`.