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Alerting rules and limits

Limits and rules pertaining to New Relic and applied intelligence:

n/a

Limited condition

Minimum value

Maximum value

Alert policies:

Alert policy name

1 character

128 characters

Policies per account

n/a

10000 policies

Alert conditions:

Matched data points per minute, per account (learn more)

N/A

300M

Condition name

1 character

128 characters

Conditions per policy

0 conditions

500 conditions

Infrastructure alert conditions

0 conditions

3700 conditions

NRQL query conditions

OR

Web app response percentiles per account

0 conditions

4000 conditions

Targets (product entities) per condition

1 target

5000 targets for NRQL conditions 1000 targets for non-NRQL conditions

Thresholds per condition

1 Warning or 1 Critical

1 Warning and 1 Critical

Alert incidents:

Custom incident descriptions

4000 characters

Duration for condition incident

30 seconds

2 hours

Incidents per issue

1 incident

10,000 incidents

Incidents beyond this limit will not be persisted.

Incident search API: page size

1 page (less than or equal to 25 incidents)

1000 pages (25K incidents)

Tip

Only use the only-open parameter to retrieve all open incidents. If you have more than 25K open incidents and need to retrieve them via the REST API, contact support.

Workflows:

Workflows per account

n/a

Initial limit 1000

Workflow filter size

1 character

4096 characters per workflow

Notification channels (Legacy):

Channel limitations

Depends on channel

Depends on channel

NRDB alert query matched data points per minute

The alert condition Matched data points per minute limit applies to the total rate of matched data points for the alerting queries in a New Relic account.

If this limit is exceeded, you won't be able to create or update conditions for the impacted account until the rate goes below the limit. Existing alert conditions are not affected.

You can see your matched data points and any limit incidents in the limits UI.

To understand what conditions are leading to the most throughput, you can perform a query like:

FROM NrAiSignal
SELECT sum(aggregatedDataPointsCount) AS 'alert matched data points'
FACET conditionId

Some tips on optimizing your matched data points:

  • If you're using sliding windows, note that this can significantly increase the number of data points. To lower the number of data points, you can use a longer aggregation duration.
  • Use WHERE clauses to scope down the amount of data being alerted on. Using WHERE instead of FACET can produce more efficient alerts in some cases.
  • Combine similar alerts. If you have several alert conditions that are similar, consider grouping them together with combined filters.

To request a limit increase, talk to your New Relic account representative.

Note that using sliding windows can significantly increase the number of data points. Consider using a longer duration of Sliding window aggregation to reduce the number of data points produced.

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