Viewing log volume report
Log volume reports display the amount of ingested log message data that is associated to a specific time frame with monthly granularity.
Required privileges
Instana protects the log volume report page by the role-based access control (RBAC) mechanism. Only users that are assigned with the Instana owner group or a group with the permission to access log volume reports can access the log volume report settings.
To assign permission to access the log volume report to a user group, complete the following steps:
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From the navigation menu in the Instana UI, select Setting > Security & Access > Groups.
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Click a group, and then click Edit.
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In the Edit access configuration window, click Global functions from the page menu.
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In the Log permissions area, select the Access log volume report checkbox.
Figure 1. Log volume permission
The Access log volume report permission is available only after the logging add-on was activated for the tenant unit.
Viewing log volume reports
To access log volume reports, assign the Access log volume report permission to the user through a group setting. For more information, see Required privileges.
To view the log volume report, complete the following steps:
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From the navigation menu, select Settings.
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In the Log Management panel, select Log volume.
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Enter the required details in the following fields:
Figure 2. Log volume -
Time range: Select a time range for the report from the following options:
- Current month (default value)
- Past 3 months
- Past 6 months
- Past 9 months
- Past 12 months
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Group: (Optional) Group the log volume according to the following infrastructure entities for more insights:
- Deployment zone
- Host name
- Kubernetes namespace name
- Kubernetes cluster name
- Kubernetes daemonset name
- Kubernetes deployment name
After you select a grouping option, you can expand each line by clicking the chevron or the line itself to access the breakdown. All data that cannot be associated to a particular grouping value is indicated with a "-".
Figure 3. Log volume when the group is added
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You can view the following information in the log volume report:
- The name of the month that is selected in the time range.
- A summary of the overall log volume that is ingested during the selected month or time range.
- The breakdown of ingested log volume by retention time.
Different retention time settings impact the consumption of the corresponding logging budgets. For more information, see Configuring extended log retention.
Computing log volume
The log volume is computed based on the information that Instana receives from customer systems. It is not based on pure ingress traffic and excludes protocol overhead. To compute the log volume, Instana computes the number of bytes of the following data pieces:
- Actual ingested log message and extracted metadata from the log message, such as log-level and timestamps
- All attached custom tags
- Trace IDs
- Span IDs
- Information that is related to exceptions, such as stack traces and exception messages