Is Monte Carlo Data down?

Monte Carlo has resolved an issue that affected a subset of customers between 18:15 UTC on October 3 and 10:25 UTC on October 4. For affected customers, some monitor runs were incorrectly marked as "Timeout" and triggered failure notifications, even though in most cases the monitor queries had completed successfully. Those runs will continue to show as "Timeout" in run history, and the notifications can be dismissed; no action is needed from customers who did not see these errors.

We’re investigating connectivity issues affecting Snowflake instances in the EU region. Anomaly detection is affected for accounts hosted in Monte Carlo's EU region, as well as customers with Snowflake integrations hosted in Snowflake EU. Metadata collection may be delayed or fail for accounts connecting to a Snowflake instance hosted in the EU, regardless of their Monte Carlo region. For more information, please refer to Snowflake’s status page: https://status.snowflake.com/incidents/fl9tkpj8d7hk

The Snowflake incident has been resolved, and data collection and anomaly detection are back to normal on all affected accounts.

Since August 29, some Alation integrations have stopped receiving data health updates from Monte Carlo after their stored credentials stopped being accepted. Monitoring and alerting inside Monte Carlo were not affected. A fix is now live. Integrations configured with a username and password have reconnected automatically. Integrations using a refresh token need a new token generated in Alation and saved in Monte Carlo will need to update their refresh token.

A fix was deployed on September 7 and integrations configured with a username and password reconnected automatically — data health updates to their Alation catalogs have resumed. The remaining affected integrations are configured with a refresh token only, which requires the customer to generate a new token in Alation and save it in Monte Carlo. Those customers have been notified directly with instructions, and their updates will resume as soon as the new token is saved. No Monte Carlo monitoring or alerting was affected at any point.

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The app is now available at getmontecarlo.com as usual.