Creating a Log Metric Rule

You can create log metric rules to extract ELB log data reported to LTS as metrics and monitor them on the metric browsing and dashboard pages.

To use business monitoring, enable this function in Menu Settings. For details, see Menu Settings.
You can create a maximum of 100 log metric rules. The total number of metrics added to all rules cannot exceed 100.

Log in to the AOM 2.0 console.
In the navigation pane, choose Business Monitoring (Beta) > Business Metrics. Then click Back to Old Version in the upper right corner of the page.
Click next to Log Metric Rules.

Set parameters to ingest ELB logs reported to LTS to AOM. For details, see Table 1.

Figure 1 Ingesting logs

**Table 1** Log ingestion parameters
Parameter	Description
Ingestion Rule	Enter 1 to 100 characters and do not start with an underscore (_) or hyphen (-). Only letters, digits, hyphens, and underscores are allowed.
Log Type	ELB log is selected by default and cannot be changed.
Application	Select a created application from the drop-down list.
Log Group	Select a created log group from the drop-down list. If no log group is available, create one by referring to Collecting Logs from ELB.
Log Stream	Select a created log stream from the drop-down list. Click Preview Log to view the log data contained in the log stream.
Log Structuring	Click Structure to structure the selected logs. By default, structured fields are displayed in the list below.

Set metric information.

Click Add Metric to add metrics for the log metric rule. For details, see Table 2.

Figure 2 Adding a metric

**Table 2** Metric configuration parameters
Category	Parameter	Description
Basic Info	Metric Name	The name consists of prefix aom_business_elb_ and custom content.
Basic Info	Metric Alias	(Mandatory) Enter an alias.
Query Metric	Search By	Only SQL query is supported.
	Query Statement	Enter an SQL query statement in the text box and click to adjust the SQL statement format. Click to view the syntax of SQL statements.
	Query Period	Select a period from the drop-down list. Options: Last minute, Last 10 minutes, Last 15 minutes, Last hour, Last 6 hours, Last day, and Last week.
Define Metric	Metric Value	Select a value from the drop-down list. Only numeric fields can be selected.
Define Metric	Metric Dimension	Select a value from the drop-down list.

Click OK.

The created log metric rule is displayed in the rule list on the left.

After creating a log metric rule, perform the operations listed in Table 3 if needed.

**Table 3** Related operations
Operation	Description
Querying a log metric rule	In the log metric rule list on the left, click a rule name. In the right pane, view the enabling status, log type, and metric of the rule.
Disabling a log metric rule	In the log metric rule list on the left, click a rule name. In the upper right corner of the page, click Disable.
Editing a log metric rule	In the log metric rule list on the left, click a rule name. In the upper right corner of the page, choose > Edit. For details, see Creating a Log Metric Rule.
Deleting a log metric rule	In the log metric rule list on the left, click a rule name. In the upper right corner of the page, choose > Delete.
Adding a metric	In the log metric rule list on the left, click a rule name. In the right pane, click Add Metric. For details, see 6.
Editing a metric	In the log metric rule list on the left, click a rule name. In the right pane, select a metric access card and click . For details, see 6.
Deleting a metric	In the log metric rule list on the left, click a rule name. In the right pane, select a metric access card and click .
Searching for a metric	In the log metric rule list on the left, click a rule name. On the right of the page, enter a rule name keyword in the search box next to Add Metric and click .