On Tuesday, April 27th from 11 to 11:30 JST (Monday, April 26th from 19 to 19:30 PDT) we will be performing short-notice emergency maintenance on the Worker database. This maintenance window is required to perform maintenance of the underlying hardware and it will replace the instance on which the primary database is running on.
Although the maintenance window duration is 30 minutes, the database will only become unreachable for no longer than 3 minutes in total. We expect this to be followed by a recovery period of around 5 minutes during which the system will gradually return to full throughput.
During the maintenance and recovery, customers may experience the following:
- The REST API to submit and cancel jobs will be unavailable
The REST API endpoints for job submission and cancellations will be unavailable during the maintenance and will respond with a 500 error code.
- Jobs execution delay
All jobs (Presto, Hive, Data Connector Integration Import and Export, Bulk Import, Table Export, and Partial Delete jobs submitted from Console, API, Workflow, CDP or triggered by our system according to the configured schedule) will be delayed and will be automatically retried until they succeed after the downtime period. During recovery, we expect jobs to begin processing slowly and within 30 minutes processing should reach back to full throughput.
If customers experience errors of Data Connector Integration Export jobs, please reach out to our Support team at firstname.lastname@example.org
to recover the jobs. Integration Export jobs won’t be retried by default to avoid exporting query results to external destinations twice, potentially causing data duplication downstream.
Beyond this notice, we will provide updates approximately 1 hour before the beginning of the maintenance window, at the start and completion of the operation, and once the verification is completed. At that time, all systems will have returned to full functionality and the Scheduled Maintenance will be closed.
If you have any question or concern about this upgrade, please feel free to reach out to our Support team at email@example.com