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Mapping Statistics Mapping Statistics

Last Updated: Sep. 12, 2023

Having too many fields in your index can lead to a mapping problem. There is a default maximum value of 1000 fields which is put in place to avoid search and performance degradation.

Coralogix has added an option to allow you to keep an eye on these numbers and on your mapping exceptions.

Mapping exceptions happen when we see the same field with two different types. For instance, in a log received from your account we see a field as type string and in another log the same field has been received as a number or a different type.

Mapping problems that are caused by the above conditions will result in a possibility to search the logs only in free text query. Logs that will have mapping exceptions in them or logs that contain fields that were not indexed due to the maximum set in your account will lack the advanced capabilities of Coralogix logs tab such as visualization of fields or advanced queries.

To check these stats, go under your account and click on settings, then select Mapping Stats.

The number in the right hand side shows the amount of fields used out of the total fields left in the daily index. The number of fields consumed refers to the number of all different fields that exist in your retention period.

Mapping Stats

In the screenshot above you can also see the mapping exceptions. In the example we have no mapping exceptions. If it happens and you see a different number than 0, click on the link View Mapping Dashboard to view details of the exceptions you have in your account.

Kibana Mapping Exceptions Dashboard

To identify the fields that caused the mapping exceptions you can look in the bottom part of the dashboard. To see the logs that are effected by the mapping exception you can query _exists_:"coralogix.failed_reason" in the Coralogix logs tab.

To fix the mapping exception we recommend understanding the reason fields are sent with different types and correct it at source. Should this is not an option, you can approach our support that will help you solve the case with a parsing rule.

Additional Resources

BlogThe Complete Guide to Elasticsearch Mapping


Need help?

Our world-class customer success team is available 24/7 to walk you through your setup and answer any questions that may come up.

Feel free to reach out to us via our in-app chat or by sending us an email at support@coralogix.com.

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