Alerts

Overview

Working alongside historical monitoring, the alerting feature actively notifies you about the changing state of a workspace. Alerts allow you to proactively remediate any issues that could adversely affect both the workspace and the applications that depend on it.

Prerequisites

To use alerts with your workspace, SingleStore 7.3 or later is required.

Pre-Configured Alert Types

Pre-configured alert types are included that can be configured by:

Individual workspace(s), where alerts are triggered for the specified workspace(s)
Workspace group, where alerts are triggered for all workspaces in the specified workspace group

These pre-configured alert types, most of which can be customized, have the following components:

A trigger condition (alert type) refers to what’s being monitored.
Each trigger condition has a single condition that can have up to three severity levels enabled: Critical, Warn, and Info.
Each severity level has configurable parameters that, when taken together, constitute a threshold.
When a severity level's threshold is reached, an email alert is sent to the list of subscribers.

The one exception is the Availability alert type, which has a preset threshold that cannot be customized. As SingleStore continuously monitors the SingleStore Helios infrastructure, availability alerts are first routed to, and evaluated by, SingleStore. If the issue cannot be readily resolved, an Availability alert is sent to the customer. While this alert may arrive outside of the expected notification window, please know that SingleStore is already working to resolve the issue.

The following table summarizes the available pre-configured alert types, what they measure, what an alert could mean, and the preset thresholds.

Trigger Condition (Alert Type)	Condition	Critical	Warn	Info	What it measures	What it could mean	Alert Method
CPU Utilization	Core CPU utilization is greater than	95%	90%	80%	A workload is beginning to slow due to lack of available CPU cycles	How long at least one CPU core has been running over the specified maximum threshold	Email
CPU Utilization	For this number of minutes	5	5	10			Email
Memory Utilization	Memory utilization is greater than	95%	90%	80%	How long that the workspace’s memory has been allocated over the specified maximum threshold	The workspace is using more memory than expected	Email
Memory Utilization	For this number of minutes	5	5	10		The workspace is using more memory than expected	Email
Persistent Cache (Disk) Utilization	Persistent cache is greater than	95%	90%	80%	How long the disk has been allocated over the specified threshold	The workspace is using more disk space than expected and warrants further investigation	Email
Persistent Cache (Disk) Utilization	For this number of minutes	5	5	10			Email
Availability	Infrastructure is unavailable	N/A	N/A	N/A	A workspace may be either offline, or online but unreachable	Whether a workspace is available	Email

The following table specifies the alerting frequency for each severity level.

Severity Level	Alerting Frequency
Critical	1 hour
Warn	6 hours
Info	24 hours

For example, if you receive a critical CPU Utilization alert for a given workspace, you will receive the next critical CPU Utilization alert an hour later. During this one-hour interval, all other critical CPU Utilization alerts will be suppressed for this workspace.

Enable Alerts

Alerts for a workspace group can either be enabled or disabled. They are enabled by default when a new workspace group is created. When alerts are enabled, the Persistent Cache Utilization alert type is also enabled by default, as are the alert types that have been enabled by the user.

To enable or disable alerts for a workspace group:

Under Configuration, select Alerts in the left navigation.
Select your workspace group from the list at the top of the page.
Select the Enable Alerts switch.

Edit Thresholds and Alerting Level

Once alerts are enabled for a workspace group:

Select the checkbox next to the desired workspace(s) to enable additional alert types for it.

You may also bulk-edit multiple workspaces by selecting additional or all workspaces.
Select the Edit icon next to this workspace.
Select the desired alert type’s severity level to enable it and set the desired thresholds.

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