KB-1979 Health Check fails to run with HTTP 404 error

Symptoms

The Appian Health Check "AHC Data Analysis" process fails with a HTTP 404 error. The following error is seen in the application server log:

ERROR com.appian.integration.httpclient.smartnode.HttpSmartNode - ConnectorRuntimeException [title=HTTP error connecting to https://forum.appian.com/suite/plugins/servlet/stateless/healthcheck/1.0/downloadreport?request_id=<ID>, com.appian.integration.core.exception.ConnectorRuntimeException: HTTP/1.1 404 404]

Cause

The Health Check application was unable to connect to Appian Forum to download the Health Check report. This may occur if Appian Forum is undergoing maintenance. Scheduled maintenance for Appian Forum is announced on Appian Community:

Action

Restart the failed process model node or re-run the Health Check outside of the scheduled maintenance window time noted on Appian Community.

Appian Forum maintenance is commonly scheduled on Saturdays between 8 PM - 11 PM US ET, so it is recommended that Health Checks are not scheduled for data analysis around this time.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: April 2020

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