Setup alerts in Grafana 10 with example
Summary
TLDRThis video tutorial offers a comprehensive guide on setting up alerts in Grafana, a powerful visualization and analytics platform. It covers the essentials of alerting concepts, such as rules, states, contact points, and notification policies. The presenter demonstrates creating an alert rule using a PostgreSQL data source, with a practical example of monitoring temperature thresholds. Viewers learn how to send notifications via Gmail and visualize alerts on dashboards, gaining insights into real-time data monitoring and proactive alert management.
Takeaways
- 😀 Grafana is a powerful platform for data visualization, analytics, and alerting, allowing users to create interactive dashboards.
- 🔍 The tutorial focuses on setting up alerts in Grafana using a PostgreSQL data source for real-time data monitoring.
- 📈 The example demonstrates visualizing and alerting based on temperature data from a sensor in a PostgreSQL database.
- ⚠️ Alerts are triggered when the temperature exceeds a specified threshold, in this case, 30°, and are cleared when it falls below this value.
- 📊 Understanding key concepts like alert rules, alert states, contact points, and notification policies is crucial for configuring alerts in Grafana.
- 📝 Alert rules define the conditions under which an alert is triggered, including data source, condition, and duration of the condition.
- 🔔 There are three main alert states: OK, pending, and alerting, each representing different stages of alert condition satisfaction.
- 💬 Contact points are the mechanisms through which alert notifications are sent, such as email, web hooks, Slack, or Discord.
- 🛠️ Notification policies determine which contact points are used for alert notifications and can be linked to alert rules using labels.
- 📧 The tutorial includes a step-by-step guide on configuring Grafana to send emails using Gmail, including setting up app passwords for authentication.
- 🔗 The video script provides links to additional resources, such as a playlist on Grafana, a blog post on the topic, and a video on connecting PostgreSQL to Grafana.
Q & A
What is Grafana and what can it be used for?
-Grafana is a visualization, analytics, and alerting platform that allows users to build interactive dashboards easily. It can be used for real-time data monitoring and creating alerts based on various conditions.
How can Grafana be connected to a PostgresSQL database for time series visualization?
-The script provides a method to connect Grafana to a PostgresSQL database by using a data source. There are also previous videos and a blog post available that explain the connection process in detail.
What is the purpose of creating alerts in Grafana?
-The purpose of creating alerts in Grafana is to monitor data continuously and trigger notifications when certain conditions are met, such as when a sensor's temperature exceeds a specified threshold.
What are the main concepts needed to understand Grafana alerts?
-The main concepts needed to understand Grafana alerts are alert rules, alert states, contact points, and notification policies.
Can you explain what an alert rule is in the context of Grafana?
-An alert rule in Grafana defines the conditions for when an alert should be triggered. It specifies the data source, the condition to be checked, the frequency of checks, and the duration for which the condition must be met to trigger the alert.
What are the three main alert states in Grafana?
-The three main alert states in Grafana are OK, Pending, and Alerting. OK indicates no alerting condition is met, Pending means the condition is met but not for the required duration, and Alerting is when the condition is met for more than the specified duration.
What is a contact point in Grafana and what is it used for?
-A contact point in Grafana is a notification medium used to send alert information to stakeholders. It can include various integrations like email, web hooks, Slack, Discord, etc.
How can alerts be sent from Gmail through Grafana?
-Grafana can be configured to use Gmail as a contact point to send alerts. This involves setting up SMTP settings in Grafana's configuration file and creating app passwords in Gmail for authentication.
How can alerts be linked to a dashboard panel in Grafana?
-Alerts can be linked to a dashboard panel in Grafana by editing the alert rule and using the 'Link dashboard and panel' option. This allows the alert state to be overlayed on the dashboard panel for visual representation.
What is the significance of the state history in Grafana alerts?
-The state history in Grafana alerts provides a record of when alerts were triggered and when they returned to a normal state. It helps in understanding the transition of alert states over time.
Outlines
📊 Introduction to Grafana Alerts
The speaker introduces the topic of creating alerts in Grafana, a platform for data visualization, analytics, and alerting. They mention having a playlist on Grafana and a blog post on the same topic, both linked in the description. The video aims to guide viewers on setting up real-time data monitoring and alerts using a PostgreSQL data source. The example revolves around monitoring temperature data from a sensor, raising an alert when it exceeds a threshold, and removing it when it falls below. The speaker also plans to demonstrate sending alerts via Gmail and explains the basic concepts needed to understand Grafana alerts, such as alert rules, alert states, contact points, and notification policies.
🛠️ Setting Up Grafana and Populating Data
The speaker demonstrates logging into Grafana and accessing the data sources, including a previously connected PostgreSQL data source. They guide viewers on how to create a dashboard to display data from the data source. Since the data source is initially empty, the speaker populates it with dummy data using a script provided in a previous video. The script generates random temperature data for a specified time range. The speaker then creates a new dashboard, adds a visualization, and writes a SQL query to fetch the temperature data from the PostgreSQL database. The data is visualized, and the dashboard is saved.
🔧 Creating an Alert Rule in Grafana
The speaker walks through the process of creating an alert rule in Grafana. They explain the need for defining queries, expressions for alert evaluation, and setting conditions for alert states. The process involves setting up a threshold expression to trigger an alert if the temperature exceeds 30 degrees. The speaker also discusses the use of reduce expressions to simplify series data and the use of classic conditions for simpler alert rules. They preview the alert state based on the defined conditions and explain how to set up evaluation behavior, including the frequency of checks and the pending period before an alert is fired.
💬 Configuring Notification Policies and Contact Points
The speaker explains how to set up notification policies and contact points in Grafana. They guide viewers on creating a contact point for email notifications and configuring Grafana to send emails using Gmail's SMTP settings. This includes generating an app password for Gmail to allow Grafana to authenticate and send emails. The speaker also shows how to create a notification policy that links alert rules with contact points, ensuring that alerts are sent to the specified email addresses when triggered.
🔗 Linking Alerts with Dashboard and Testing
The speaker demonstrates linking alert rules with a dashboard panel to overlay alert states on the dashboard. They adjust the alert rule to trigger an alert at a lower temperature threshold for demonstration purposes. The speaker then shows how to view the alert state on the dashboard and how changes in the alert state result in notifications being sent. They also explain how to view the state history of alerts to track when thresholds were violated. The speaker concludes by encouraging viewers to check out the linked blog post for more detailed information and to engage with the content by asking questions or providing feedback.
Mindmap
Keywords
💡Grafana
💡Alerts
💡PostgreSQL
💡Dashboards
💡Alert Rules
💡Alert States
💡Contact Points
💡Notification Policies
💡Thresholds
💡Data Source
💡Evaluation Behavior
Highlights
Introduction to Grafana as a visualization, analytics, and alerting platform.
Explanation of how to create alerts in Grafana for real-time data monitoring.
Link to a playlist on Grafana provided for further learning.
Demonstration of using Grafana with a PostgreSQL data source for time series visualization.
Tutorial on setting up alerts based on temperature thresholds from sensor data.
Description of alert states: OK, pending, and alerting with examples.
Introduction to contact points and notification policies in Grafana alerting.
Guide on sending alerts via Gmail using Grafana's alerting system.
Conceptual overview of alert rules and their configuration in Grafana.
Step-by-step guide on creating a dashboard in Grafana to visualize data from a PostgreSQL database.
Instructions on creating an alert rule in Grafana with a threshold expression.
Explanation of evaluation behavior and how to set intervals for alert checks.
How to add annotations to alert rules for better alert summaries.
Process of assigning labels to alerts for routing to specific notification channels.
Configuration of Grafana to send emails using Gmail SMTP settings.
Creating and managing notification policies to link alerts with contact points.
Linking alerts to dashboard panels for real-time alert visualization.
Demonstration of state history in Grafana to track alert transitions over time.
Final summary on configuring multiple alerts in Grafana and managing notifications.
Transcripts
hi friends in this video we're going to
talk about how to create alerts in
grafana if you don't know what grafana
is grafana is an awesome visualization
analytics and alerting platform where
you can build interactive dashboards
very easily I have made a playlist on
grafana and I will leave the link of the
playlist in the description so in this
video we're going to talk about how to
use grafana for realtime data monitoring
and creating alerts you can see I
created a blog post on this topic and I
will leave the link of this blog post in
the description so I'm going to explain
alerting grafana using a postest SQL
data source in our previous video we
have talked about how to use grafana to
connect to postest SQL for time series
visualization I will leave the link of
this video in the description you can
see that to understand how to connect
post SQL with grafana so the thing we
are going to achieve in this video is we
will visualize POS SQL in grafana and
create alerts based on conditions in our
example we are plotting the temperature
from a sensor data present in the poess
SQL database and we are going to raise
an alert if the temperature raises from
a specified threshold value suppose if
the temperature is greater than 30°
raise an alert and if the temperature
goes below 30° again then the alert will
be removed again if the temperature goes
above 30° then the alert will be raised
so we are going to achieve this setup in
this video and when an alert is raised
or an alert is removed you will get a
notification and we are going to
demonstrate how to send alerts from
Gmail and grafana will use Gmail to send
alerts to the specified stakeholders so
this is what we are going to achieve in
this video so let's get started so
before using grafana to configure alerts
let's try to get to know some Concepts
because without knowing that Concepts
you can't use grafana to configure
alerts so we are trying to achieve
alerting in grafana and to understand
grafana alerts you need to know about
these Concepts alert rules alert States
contact points and notification policies
so let's start to go through these
Concepts one by one so what is an alert
rule so alert rule is basically what it
literally means it's the rule which
defines the alert for example you can
write an alert to check the data
continuously each minute and raise an
alert if temperature is greater than 30°
and if this condition is met
continuously for 5 minutes then only you
can raise an alert so this is an example
of an alerting condition so in an
alerting rule you define which data
source should fet the data from and what
is the alerting rule and what is the
periodicity of checking the alerts and
how much time the alert should be
persisting to raise an alert so these
are all defined in the alerting room and
the next thing is the alerting states so
there are mainly three alert states
which is okay pending and alerting let's
take our temperature example if the
temperature is less than 30° then the
state is okay because no alerting
condition is met if the temperature is
greater than 30° for 2 minutes the state
would be pending because for us to raise
an alert the temperature should be
greater than the threshold for 5 minutes
right so the alerting condition is met
but still the desired duration of the
alert is not completed so that state
would be in pending and if the
temperature is greater than the
threshold for more than 5 minutes then
the state would be alerting so this way
the alerting rule can have three alert
states which is okay pending and
alerting and now the temperature again
falls back from threshold to normal
value then again the state will be okay
state so this way these are the three
alert States and obviously if the data
source is not responding or if there is
no data in the data source then the
state would be no data and while
evaluating the alert rule if there is
some error the Alert state would be
error State mostly you would be dealing
with these three states okay pending and
alerting and if there is some data
issues then you may get into these
states which are no data and error so
these are alerting states and the next
thing is the contact point so contact
point is basically a notification medium
using which you can send your alert
information to your stakeholders so in
graan you can have multiple type of
contact points like email web hooks
slack Discord Etc so basically the
change in alerting States can be
notified using these contact points and
in grafana a contact Point can be one or
more Integrations that means you can
define a single contact point and it can
have mail and web hook integration both
in one contact point so basically
contact point is a group of one or more
Integrations like email web hook Etc and
the next thing is a notification policy
so you defined an alerting Rule and you
defined a contact Point using the
notification policy you will specify
what contact points would be used by the
alert rule this is achieved by attaching
labels to the alert rule so these were
the concepts which are required to
understand the alerts in grafana alert
rules alert States contact points and
notification policies all right enough
of theory let's try to do the real demo
in grafana so my grafana is already
already up and running in my local host
let's try to open grafana so my grafana
is running at Local Host 3000 and I'm
presented with the login screen let's
try to log to
grafana all right now I'm present in the
grafana home screen so let's try to see
my data sources so in the connections
I'm seeing my data sources and I've
already connected a posters SQL data
source to my grafana so if you don't
know how to connect a post SQL data
source to grafana I already made a video
on that and I will leave the link of
that video in the description please go
through that all right the next next
step is to create a dashboard to show
the data from the data source right but
since there is no data in the data
source I will just populate some dummy
data for this demo purpose in my
previous video blog post where I
connected posters SQL to gaana as a data
source I have given a sample script for
populating some dummy data into the
database I also given you the schema so
you can run the schema to create the
dummy table and you can run this script
to create a dummy data in that table so
let's try to copy the script
and I'm using DB to connect to my
database DB is an awesome tool using
which you can connect to multiple types
of databases and do a lot of database
Administration tasks if you don't know
about DV I already made a video on that
and I will leave the link of that video
in the description currently Ive
connected my DB to my post SQL database
and this is the script which I'm going
to run and this script is going to
create some random data in the database
and it will create the random data for
the past 1 hour to the next 4 hours so
let's try to run this script all at the
script is run and the data is populated
in the database all right since I've
populated some dummy data in my process
SQL database let's try to visualize here
so I'm going to create a dashboard here
by going to the dashboards and let's try
to create a new dashboard new dashboard
and add visualization and I'm going to
select to the database as the posst SQL
database which I configured already
let's try to move this up so that we can
get some space to see the code and here
instead of the Builder mode I'm going to
go to the code mode and I'm going to
write some some SQL here to populate the
data so this is going to be my SQL
select data time as time and temperature
as Sensor One temperature where sensor
ID equal to S1 and I'm applying the time
filter so Ive already explained these
terms in my previous video so if you
don't know how to is post scale query in
grafana please refer that video but for
now we are plotting Sensor One
temperature in this grafana dashboard so
let's try to run this query and yeah you
got your data here since we have
inserted the D data for only the last 1
hour this would be empty here so let's
try to convert this from last 6 hours to
last 1 hour and you got your data here
all right we are able to successfully
create a dashboard showing the
temperature from our post SQL database
let's try to save this let's try to name
the dashboard as sample dashboard save
and I got my dashboard here now the next
thing is to create an alert right
creating alerts in the newer version of
grafana has changed a lot so let's try
to see how it's done so in the left
pan go for alerting and here you got
alert rules I've already created some
alert rule let's try to delete that
already so now I don't have any alert
rules let's try to create a new alert
rule let's try to give a name to this
alert rule I'll just name it Sensor One
alert all right now we need to define
the query again let's go to the code
mode and let's try to Define the alert
and here in the options you will Define
how much period of data is to be fetched
and here in the options I'm getting the
last 10 minutes data which is okay for
me because for alert evaluation last 10
minutes data is more than enough for me
but if you want to change your time
range of fetching the data you can just
change it here but I'm okay with now
minus 10 minutes and apply time range
that's it now again let's try to paste
our query to f fetch the data let's try
to run the
query and here is the data which we are
fetching the last 10 minutes data so in
this way you can check whether your
query is right or wrong so we have
successfully defined the query to fet
the data for our alerting condition and
we have checked it here all right we
have mentioned the name of the alert we
have defined the query to fetch the data
for the alert now let's try to create an
expression to do alert evaluation so my
alert evaluation rule would be create an
alert if the threshold is greater than
30° so just scroll down and they already
given you some easy Expressions the
first expression is a reduced expression
and the second expression is a threshold
expression so reduce expression just as
the name implies you can reduce the
whole series data into one number so the
alas of my input query is a it can be
seen right here and the input to this
radius query is the a so a is being
input for this radius query and that
taking the last one but I would like to
take the maximum value that means in the
last 10 minutes I'm going to take the
maximum value and the value would be
here 27° you can see the preview value
Also let's try to preview again the
maximum value in the last 10 minutes was
29° and for alerts to work the output
should be zero or one so that can be
achieved using the threshold expression
so the input would be this query which
is the B query so input would be B and
if it above 30° the threshold is
satisfied so e above would be converted
to 30° so we have defined that if B is
greater than 30° then fire the alert
let's try to preview again now it's
normal previously the query was zero and
obviously the data was above zero so if
you preview it was firing the alert was
in Alert state and now if I made the
query is above 30° and preview now the
state is normal so first we we defined
our data fetch query and then we have
defined two expressions which would get
a result from the whole data fetched as
a single value using the reduce
expression maximum of the data and then
I'm applying a threshold filter to see
whether the data has crossed the
threshold just with two expressions I
was able to Define my alerting condition
in fact people who are using some
previous versions of grafana you can
create a classic condition Also let's
try to delete these two conditions in
fact and create a new expression add EX
classic condition and here the condition
would be a single condition when maximum
of a is above 30° the alert should be
fired so set this as alerting condition
in fact and Now preview now it's firing
that means the data would have been
greater than 30° and you can see it here
the data was 30.9 so that's why it's
firing so you can even create a simple
classic condition or you can create
reduce and threshold conditions in fact
let's try to see some more expression
possible days I'll just add a new
expression and create a math expression
and this is useful if you want to create
transformation suppose you have two
queries and you want to add them so if
you have a query a and a query B you can
even add them using math expression
something like that so that would be for
some complex scenarios where you would
want to do Transformations on your
queries that means you want to do double
of your values or you want to subtract
two queries or add two queries so for
those complex calculations you can use
the math expression but for our example
it's a simple threshold matching
alerting condition so I'm just using a
classic condition and I'm saying that if
the maximum of the data fetched is above
30° just fire an alert let's to prev
this
again it's still firing because the data
is above 30° 30.3 if the data comes
below this threshold then it would be
normal all right we have defined our
alert Rule and the next thing is the
evaluation Behavior so this will Define
what is the periodicity of evaluating
the alerts that means we may Define that
check for the alerts for every 1 minute
or check for the alerts every 5 minutes
so this is the evaluation Behavior so to
set an evaluation Behavior you need to
have a folder but if you want a new
folder you can just click on new folder
and enter the name demo folder and click
create and now you're using your new
folder and to define the periodicity of
alert evaluation or alert checking you
need to have an evaluation group where
you define the alerting checking
periodicity so you need to select an
evaluation group grou if you don't have
any evaluation group just create a new
evaluation Group by clicking this button
and here enter a name so here I'm going
to write something like temperature
evaluation group and I want to check
every 1 minute so I'm going to make the
interval as 1 M so every 1 minute the
alerting condition would be checked so
create this alerting evaluation group so
now all the rules in the selected group
would be evaluated every 1 minute and
the next thing is a pending period so
pending period is basically the am
amount of the time for which the alert
should be continuously violating that
means you can define an alert that if
the temperature is continuously
violating for 5 minutes at a stretch
then only fire an alert so if you want
to create a alerting condition something
like that then you can use the pending
period otherwise you can just make it
zero that means whenever an alert is met
immediately the alert will be fired if
you write pending period something like
10 minutes that means if the data is
continuously violating for 10 minutes
then only alert will be filed so for our
example to make it simple let's make the
pending period as zero that means as
soon as the alert is met the alert will
be fired and you can leave this default
if there is no data the state would be
no data and if the execution error or if
there is some timeout you can make the
state as error so it's okay to keep this
as a default options and then the next
step in defining the alerting rule is
adding the annotations it's just
basically telling the summary of the
alerts you can Define it if you want
let's TR describe our alert here all
right we have described our alert here
and then the next important thing is how
can you convey your alerts to your
notification channels or how can you
send an email for your alert that's
possible by giving labels to your alerts
so let's try to give some labels to our
alerts so label is basically a key value
pair let's give a label team equal to
infra so this is basically the
convention generally used you give the
tags to your alerts and based upon the
tags you can route your alerts to your
notification channels suppose if there
is an organization and you kept the
sensor in the server room and the
concern team is the infrastructure
maintenance team then I would keep the
label team equal to infra so that is the
general convention or else you can keep
any label you want you can just write
some key value pays here and that's it
now you defined the rule just try to
save the rule and exit and we have saved
our rules so we have defined the rule
here and you can see already the rule is
normal here and the next evaluation
period is within the 1 minute that means
every 1 minute the rule is going to be
evaluated now if you want to pause this
rule how can you do that it's really
simple actually let's try to see how it
can be paused go to the edit button and
you can see the editing screen of the
rule and in the alert evaluation
Behavior you can pause evaluation now
save the rule now the rule won't be
evaluated that means the rule checking
is paused now so if you go to the alert
rules if you expand this Sensor One
alert this rule is paused now unless you
unpause the rule the rule will not be
checked so the alert is paused now so we
have successfully defined an alert Rule
now the next thing is the contact point
so I already created a contact Point
let's try to delete that let's try to
create it again okay we are telling that
the contact point is already being used
in some policy let's TR go to my
notification policy and I want to even
delete this policy let's try to delete
this notification policy and let's try
to go and delete this contact Point all
right now let's try to create a fresh
contact point so our contact point is
going to be an email so let's try to add
a contact Point Let's TR to name it as
infra team
email and the integration would be an
email integration and let me try to send
the email to my infra team so suppose
the email is infra abcd.com so this is
my email of the infra team and optional
email settings you can send a single
email to all the email addresses suppose
if I have two email addresses like infra
abcd.com and infra 2 abcd.com a single
mage message would be sent to these two
emails at once and you can give an
optional message and that's it it's that
simple to create a contact point and
then if you want to add one more
integration in the same contact point
you can do that let's go here and add a
contact Point integration so here you
can add one more email or you can add
something like Discord or whatever so
for this example let's make it simple
and create just a single email address
as one contact point now let's try to
save the contact point now let's go to
edit this contact point and now you can
see all the contact Point details here
so we are using an email contact point
right so grafana should be able to send
an email to this contact point so for
that you need to configure grafana to
use email in our example we are using
Google's email in grafana to send emails
so how can you do that so let's try to
see how we can configure email in
grafana so grafana is installed in my
computer so we have a folder called C
program files grafana labs grafana conf
so in that folder you have defaults ini
let's open this default. let's start
right click and open with you can use
any notepad but I'm using vs code
because I'll will get the easy syntax
highlighting and here I'm going to
search for contrl f
SMTP and there's a section called SMTP
and this data would be used by grafana
to send emails so if you're using Gmail
to send emails from grafana the setting
should be something like this first make
enabled equal to true and and the host
would be smtp.gmail.com or any SMTP host
you using suppose you have your
organization Outlook email you can use
those settings but for this example I'm
using the Gmail SMTP settings so this
would be the same for all Gmail accounts
smtp.gmail.com
fire7 and here the username would be the
Gmail address from which you are sending
the Gmail and the password would be the
app password let's TR to see how we can
create the app password we will see that
in a while and you can make skip verify
equal to false and from address be the
email address which you're using and the
from name for example here I'm using
grafana but you can use your company's
name like Acme it department or
something like that so let's try to see
how we can get this password so log to
your Google and go to
accounts.google.com or myac account.
goole.com or just click on this and
click on your account here and then go
to the security
Tab and here in the search bar just
search for app passwords and here you
got this app passwords go here and now I
got some app passwords here if you want
to create an app password let's try to
do it now grafana 2 I'll create a second
app password now grafana to
create and now I got an app password
let's try to copy this copy and done now
I got an app password which I can use in
my grafana settings so I'll go to this
vs code and paste my app password here
obviously there should not be spaces
remove the spaces and that's it now I
can use my Gmail account to send emails
now I configured grafana to send emails
now let's try to close the defaults
let's close this vs code Also let's
close our Gmail and now since I've got
my SMTP settings right I can test my
SMTP so I have created integration right
let's say to test this test and send
test notification you can see test alert
is sent and in my sent email I can see
my test notification is sent actually
notification test so that's how you can
configure gra to send emails and you can
configure contact point to send email to
a particular email address so till now
we have configured an alert rule we have
configured a contact point and now you
need to connect this alert rule with the
contact point right for that you have
notification policies so by default
notification policy is the default
policy which will use the email but I
want to create a new policy so click on
the new nested policy and remember the
label which we have used in our alert Ru
let's try to use that here I can write t
equal to
infra so that was a label I used in my
alert so if I use this this policy would
be matched with that alert Rule and that
alert rule will use this policy to send
notifications so the contact point which
will be used by this policy is obviously
the infr team email and that's it save
policy now see this here if there is a
label called team equal to infra in your
alert rule infra team email contact
point would be used so so this way using
notification policy I was able to
connect my alert rule with a contact
point so that's it very easily we have
created an alert Rule and we have
connected a contact point with the alert
rule to notify the changes in Alert
state but hey I did not link my alert
with the dashboard so that I can overlay
the alerts of my alert rules on the
dashboard right for example let's go to
a dashboard dashboards and my sample
dashboard I'm not able to see any Alert
state here right so how can I link my
alert rule with this dashboard panel how
can I do that let's go to our alert
rules alerting alert rules and in the
demo folder this was my alert rule right
let's go to edit this alert Rule and
here there is a provision to link your
alert tool with the dashboard in the
section add annotations which is the
fourth section you can see link
dashboard and panel let's click on this
and select the dashboard our dashboard
was Sample dashboard and there is one
panel and that panel is shown here click
on this panel
confirm now the dashboard panel is
linked with this alert rule save this
Rule and exit and now let's go to the
dashboards let's go to our sample
dashboard now you can see the Alert
state here being
shown in fact let's try to expand this
and let's try to make the alert
threshold very less so that we can see
the alert here actually so let's try to
save this dashboard
again and now let's TR to change our
alert rule let's go to alerts
and alert rules let's try to make the
threshold very less so that the alert
will be triggered let's try to click on
edit in fact let's try to unpause our
alert so evaluation will go on pause
evaluation will be removed and then we
are evaluating every 1 minute right but
for this demo let's evaluate every 10
seconds click on this edit and here
instead of 1 minute 10 seconds save and
then in the alert rule in the threshold
let's make it above something like 15°
so that it will F defin Ely preview
this it's firing let's try to save the
rule and now let's go to the dashboards
dashboard sample dashboard and now
within 10 seconds you should see an
alert here because the threshold is just
15° let's try to reload now you got an
alert saying that the alert has crossed
the threshold and if you H over this you
can see Sensor One alert and the value
is
30.93 so this way you can overlay your
alerts on your existing panels and now
let's tryy to make the threshold up
again so that the alert would be coming
to normal state so again let's go to the
alerts alert rules and let's go to our
alert rule edit this sorry it's
evaluation group expand this and go to
this alert edit and here let's say to
make the condition above
30° preview it's firing still because
the value is greater than 30 let's make
it
35 and let's set a preview this now now
it's normal save the rule and exit and
now let's go to the
dashboards sample dashboard and now
let's start to wait for 10 seconds
refresh this again and now you are in
the okay state so this way as the alert
rule evaluation goes on if there is some
kind of violation in the threshold or if
it's again less than the threshold the
Alert state would be changing and for
each alert change you should get a
notification let's go to our Gmail and
if you see the sent mail you can see
there's a firing alert which is
notifying that the alert has filed so
this way you can even send notifications
if there are alert violations so the
alert is still not greater than 35° so
the alert is still okay in state so if
the temperature crosses 35° then again
there will be something like an alerting
State all right let's go to our alert
rules and let's try to change the alert
evaluation for every 1 minute instead of
10 seconds so let's go to the alerts
edit it and make the evaluation Behavior
as 1 minute instead of 10 seconds so
click on this edit button and instead of
10 seconds make it something like 10
minutes so every 10 minutes the
temperature will be evaluated and now if
you want to see the state history at
what times the alert was filed let's go
to the alert rules and if you expand
this alert you can see something like a
state history click on show State
history and this is the state history so
now if the alert goes from normal to
alerting you will see a new entry here
so this way you can see at what time the
thresholds were violated and at what
time the Val Has Come Again below the
threshold so you can see the transition
of the alert States using the state
history so that's it guys let's go to a
dashboard sample dashboard and this is
how you can see your alerts in grafana
now this way you can configure multiple
alerts in grafana and you can get
multiple notifications you can group
your alerts and do a lot of convenient
alerting so this was a simple example of
how to create and manage alerts in
grafana you can see I've created a blog
post on creating and managing alerts in
grafana I've given you the notes and
I've also given you the configuration
screen so that you can easily configure
alerts in grafana for your own use cases
I've also given you the link to the
official demo video you can even go
through this if you want to know more or
if you want to get to know in depth
about alerting in grafana but in our
video we have just covered how to very
easily set up alerts in grafana so
please be sure to check out the link of
this blog post in the description of
this video please ask questions or post
your valuable feedback in the comment
section hope you like this video guys
thank you for watching peace
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